when to fertilize hydrangeas

Fertilize lightly with a slow release granular fertilizer like osmocote. Water well. Hydrangeas are beautiful when they bloom in spring and summer. Plant hydrangea where the shrub is exposed to morning sunlight and afternoon shade, especially in warmer climates within zone 7. This increases the potential for winter damage. If you are looking for a fertilzing routine tailored to your specific conditions, a soil sample should be taken and the fertilizer and trace elements matched to the needs of your soil. They’ll tell you what family the hydrangea belongs to, and can teach you when and how to prune, best location, and when to fertilize. Always read the instructions for best use! Afternoon shade is extremely important if you wish to grow hydrangeas in zone 9. Limelight hydrangeas will provide new flowers on new wood only, so the best time to prune Limelight hydrangeas needs to be done at the end of winter or the beginning of Spring, before any new growth starts to show itself. Water well. With a good, all-purpose 12-4-8 to 10-10-10 NPK composition will feed Hydrangeas as needed. In warmer regions, feed hydrangeas a second time in June. Readily available. Many of the newer cultivars have been bred for resistance to powdery mildew. Here is more information on how to change the color of hydrangeas. Hydrangeas are also hardy, insect, and disease resistant, and versatile. Implementing good pest management strategies such as watering at the root zone and not on the leaves, removing fallen leaf litter, followed by a 2-3 inch layer of mulch will also help to reduce those problems. Fertilizing at this time may stimulate new growth that will be too tender to withstand the winter. Used coffee grounds are good for plants and soil. Hydrangeas are beautiful when they bloom in spring and summer. For blue cultivars of bigleaf and mountain hydrangea, fertilize once in spring with a formulation for acid‐loving plants. Frequent, severe pruning results in weaker plants. Hydrangea flowers can be finicky, but taking care of This is the result of either an iron deficiency or iron unavailable for plant uptake. Hydrangeas are an important group of ornamental flowering shrubs that offers something for sun or shade gardens. Lime results in pink and a change to either color takes time. Fertilize your Hydrangeas annually in late winter or very early spring with a slow-release shrub & tree food. Fertilize according to your particular hydrangea species. French hydrangeas need direct sunlight to bloom well, at least 4-6 hours. Include a light bi-annual dose of liquid iron to keep the leaves a healthy green. Fertilizing Hydrangeas. They grow well in a variety of soils and tolerate Zone 5 Hydrangeas – Growing Hydrangeas In Zone 5 Gardens, Caring For Hardy Hydrangeas: Learn About Zone 7 Hydrangea Planting, Different Types Of Hydrangea – Learn About Common Hydrangea Varieties, Indoor Plant Problems: Mistakes People Make With Houseplants, Animal Footprint Molds: Making Animal Track Casts With Kids, Growing Challenge In Winter: Finding Winter Garden Motivation, Lasagna Gardening – Creating A Garden With Layers, Identifying And Treating Rose Mosaic Disease, Tips For Bearded Irises Replanting And Dividing, Winter Planning Process – Make To-Do Lists Happen, Fake Tree For The Holidays And Why I Love it, What Is The Winter Solstice: First Day Of Winter History, Fresh-Cut Pine Tree Smell: Perfect Christmas Tree Memories. Based on the species, they are perennial in U.S. Department of Agriculture Water hydrangeas regularly, but beware of overwatering. Most reliable of the blue-flowered hydrangeas. Hydrangeas are hardy from zones 4 through 9, and the heat in zone 9 means hydrangeas need extra protection. Time this dose of hydrangea fertilizer for early in the season, when plants are leafing out. Phosphorus is the element that encourages bloom production. Based on the species, they are perennial in U.S. Department of Agriculture plant hardiness zones 3 through 8. If using an organic plant food, which will be more mild, you can fertilize two or three times during the active growth season. Aluminum is generally more … Panicle (H. paniculata) and Smooth Hydrangea (H. arborescens) flower on NEW wood (just like a crapemyrtle) so they can be cut back immediately after flowering and may rebloom later in the season, or, they can be cut back in the winter and still be expected to flower the following year. While they can stand the sun, these do just fine in partial shade, too. How to fertilize hydrangeas is just as important as what you’re fertilizing hydrangeas with. Don't fertilize after August. Because hydrangeas prefer moist, well-draining soil, they need a shady spot to … More northern areas may wish to … Learn what those are in the article that follows to ensure healthy hydrangeas. Alternatively, you can feed with a natural organic plant food. It's a good indication of where to prune. For Established Roses: Early to mid-spring: Begin fertilizing when new leaves emerge. Blooms earlier than many other choices and is a reliable producer of blue color in a wider range of soil types. Visual guide for growing hydrangeas in St. Louis gardens by Anne Kirkpatrick With so many species of hydrangeas and so many cultivars, the variety available to gardeners can be somewhat daunting. The genus includes a variety of plant sizes, textures, blossom shapes and colors. Water well. If a hydrangea will not bloom year after year, there is a problem unrelated to the fertilizer. Feb 16, 2016 - How to feed hydrangeas is a common concern. Phosphorus in the soil tends to bind aluminum so that it isn’t For planting, dig a large hole approximately two feet across and one foot deep. Be sure to spread it around the drip line of the branches and not the base. Over-fertilization can be much more detrimental than under-fertilization. Where to plant a French hydrangea French hydrangeas often appear on lists of shade-loving plants. If you prune your limelight hydrangea at any other time of the year it can interrupt your flower growth and you might not get any new blooms. There are many slow-release fertilizers on the market. Since an organic method of applying manure and/or compost around the roots, produces excellent results and also improves the condition of the soil, this would be an excellent first line of attack. Hydrangea care and feeding is fairly simple once you learn some basic rules. If a liquid fertilizer is used, it should be applied every month for both plants in pots and in the ground. Fertilize the hydrangea once in March, May and July with 2 cups of 10-10-10 slow-release granulated fertilizer for every 100 square feet. Don't fertilize after August. Hydrangea flowers can be finicky, but taking care of your plant's needs increases your chances of getting to experience an amazing bloom. May need winter protection in exposed locations. Hydrangeas are easy to grow in well-drained soil, which should contain plenty of organic matter or humus. A very large shrub in the ground will take 2 - 3 cups spread around the drip line of the branches (not next to the trunk). Bigleaf hydrangea responds to severa… If overfertilization is severe, the plant may just wilt and die. We may receive a commission for purchases made through these links. Both the color changes are gradual. Gardeners who practice good hydrangea care and feeding will be rewarded with luxurious foliage and glorious blooms. Bigleaf hydrangea prefers morning sun and afternoon shade. When you should fertilize hydrangeas depends on the fertilize you use and the soil. Apply coffee grounds sparingly during the first few months; feel free to spread them on the soil around your plant whenever you wish after that. Hydrangeas are deciduous - that'll fall off and you'll have no problem at all. We recommend using a granular, slow-release fertilizer with a high percentage of phosphorus (the middle number in the NPK Yet one type of hydrangea can soak up the sun all day: the panicle hydrangea. Avoid planting it in hot, dry, exposed sites. If chemical fertilizers are used, applying a slow-release, balanced fertilizer once a year is probably the simplest solution. Hydrangea care and feeding is fairly simple once you learn some basic rules. To fertilize Hydrangeas, (according to many sources) it is recommended to use a granular and slow-release fertilizer. A less expensive fast-release compound will work as well. Hydrangeas have few pests, but are susceptible to both leaf spot diseases and powdery mildew. To stay organized and on track, keep a gardening calendar handy where you can write down when and how you fertilize … Growers typically apply a slow-release fertilizer. Hydrangeas should be fertilized with fast-release fertilizer in March, May, and July. But I do have a lot of Hydrangeas in pots and I do need to fertilize them. How to feed hydrangea… How do you fertilize hydrangeas? Hydrangeas add beauty to any landscape. However, slow-release is certainly not the only way to fertilizer hydrangeas. Bigleaf hydrangea prefers morning sun and afternoon shade. The amount of chemical fertilizer used per plant will vary with the size of the plant and it's root system. Try to cure the problem before adding fertilizer. ). Although some authorities recommend special fertilizer mixes to get the maximum results, hydrangeas do amazingly well with a more relaxed approach. If the fertilizer you choose It's possible that extra ingredients added to fertilizers might change the color, but the fertilizer itself doesn't have this power. Pruning is always a tricky question with Hydrangeas. Hydrangeas (_Hydrangea_ spp.) Autumn is the best time for hydrangea planting. Hydrangeas should be fertilized with fast-release fertilizer in March, May, and July. Fertilizer burn can occur when too much is applied. A good all purpose 12-4-8 or 10-10-10 composition will provide all the fertilizing hydrangeas need. Fertilizer is best used on plants at their peak growing cycle: just before flowering or leafing out, and your Annabelle's are probably leafing out right now, or at least they probably were before this snow. Hydrangeas treated with sulfur will remain or turn blue. per 100 feet. Commercial manure or compost can be applied yearly around the base of the hydrangea. Here is a list of just a few zone 7 hydrangeas, along with a Fertilize established plants using an all-purpose fertilizer in both spring and fall, with the exception of Hydrangeas and Azaleas. Excellent results have been reported by visitors to this site after using composted manure. If the fertilizer you choose is a slow-release type, remember to lightly cover it with soil to activate the fertilizer. It will flop over after a good rain, just like any other hydrangea. Get the latest updates on new products and upcoming sales. I hope you were able to tuck their emerging leaves under some mulch before the storm. Fall is the time for hydrangeas to begin preparing for dormancy. Liquid iron is inexpensive and can easily be poured or sprayed on the plant. Azaleas I don't see people fertilize and they flower abundantly just fine. Fall is the time for hydrangeas to begin preparing for dormancy. For an organic approach, many gardeners use commercial manure on the soil around hydrangeas. Either a chemical source or organic matter can be used successfully. They have attractive foliage and produce large, striking blossoms. Morning sun and afternoon shade is often recommended as a rule of thumb, although gardeners in the South may wish to furnish more shade, while those who live in cooler climates may get away with a location in full sun. Hydrangeas turn pink when they are treated with lime, and when treated with sulfur, they turn blue. After this first season, fertilize your Hydrangea once a year in either spring or fall. Continue to fertilize every 3 to 4 weeks with a mild fertilizer such as fish emulsion. In the South, a May application and another in July If you use a fast-release fertilizer, you should lightly dress the hydrangeas with the fertilizer in July, March, and May. Apply foliar sprays to roses early in the day to allow leaves to dry out to help prevent disease. Fertilizing: Hydrangeas do especially well when fertilizers are effectively used in spring or early summer. When to prune limelight hydrangeas Our site is reader supported, this means we may earn a small commission from Amazon and other affiliates when you buy through links on our site. You can fertilize Bobo hydrangeas in early spring. However, sometimes they don’t bloom the way you want them to. The spent flowers from last season need to come off. Most people buy hydrangeas when they are blooming, but spring or fall is the best time to set them out. Fertilizer burn can occur when too much is applied. Fall is the time for hydrangeas to begin preparing for dormancy. Hydrangeas should be lightly dressed with fast-release fertilizer in March, May, and July. Yellow leaves and green veins are often the result of iron chlorosis. Hydrangeas are also known for their tendency to change their flower color based on the amount of aluminum in the soil. How to Get Hydrangeas to Bloom. This condition usually means the plant needs iron. But I am lazy so, I prefer to fertilize my roses and my potted plants at the same time that I amend the azaleas, hydrangeas and camellias. "Fertilizer burn" can occur when too much fertilizer is applied, resulting in a drying out of the roots and damage or even death of the hydrangea.It is much, much better to err on the side of too little fertilizer than too much. Most hydrangeas prefer only morning sun. Although some authorities recommend special fertilizer mixes to get the maximum results, hydrangeas do amazingly well with a more relaxed approach. If the fertilizer you choose is a slow-release type, remember to lightly cover it with soil to activate the fertilizer. When to Fertilize Fertilize established plants using an all-purpose fertilizer in both spring and fall, with the exception of Hydrangeas and Azaleas. When roots are burned, the first sign is often scorched looking leaves. When fertilizing hydrangeas in pots, be careful to apply a fertilizer that will not burn the roots (such as a slow release or a liquid fertilizer). Water well. (Use less fertilizer for hydrangeas in a container.) Keep rose plants well-watered and wait until it cools off to re-fertilize. When leaves on a plant turn yellow WITH green veins (as in the image on the right which is from the Texas A & M Aggie site), regular fertilizer will not improve the color. Give bigleaf hydrangeas light applications of a general purpose fertilizer such as 10-10-10, applied in March, May and July at a rate of 1 lb. For hydrangeas that flower on old wood like these pink and blue mophead hydrangeas in our backyard, it’s ok to prune off dead stems or blooms at any time (prune close to the bloom) but if you want to do more significant pruning because your hydrangea bush is getting too large, it must be done in the summer (before August to be safe! When and how should hydrangeas be fertilized? Bigleaf Hydrangea and Oakleaf Hydrangea), the Panicle Hydrangea (H. paniculata) is a … You can fertilize Bobo hydrangeas in early spring. If a new plant dries out at all, full-strength fertilizers can cause leaf margins and root tips to burn. Fall plantings should be fertilized the following spring, and spring plantings should be fertilized 6 to 8 weeks after planting. However, sometimes they don't bloom the way you want them to. A less expensive fast release fertilizer such as a 10-10-10 will work just as well if applied twice during the summer. Be sure to spread it around the drip line of the branches and not the base. I live in Texas zone 9 and would like to know what and when to fertilize hydrangeas, camellias, and gardenias. A discussion of how to fertilize hydrangeas wouldn’t be complete without mentioning the addition of small amounts of sulfur or lime when fertilizing to change hydrangea color. Says Anthony, ‘Make sure you dig plenty of organic matter into the soil. Most people recommend fertilizing hydrangeas in late spring and/or early summer. normalis) are a variety of bigleaf hydrangea that have corymbs of small fertile flowers that are surrounded by larger, showier sterile flowers. Climbing hydrangeas typically don’t require fertilizer for the first three years of life and, after that, only if you notice foliage problems. It's a myth that hydrangeas require acidic soil. Be aware that, depending on what you add and the soil type, the colour of the hydrangea may change over time.’ This is unfortunate since we would all like a simple solution to the common problem of hydrangeas failing to bloom. As gardengal noted, I never fertilize Hydrangeas, once they are planted in the garden. While most of us think of Hydrangeas as great shrubs for the shade (e.g. Bobo is said to have strong stems, but don't put too much stock in that claim. Too much of supplements can burn the plants. Sun: Part shade Water: Medium Height: 4 - 6 feet : Hydrangea macrophylla 'Tokyo Delight' bigleaf hydrangea Deciduous shrub To fertilize Hydrangeas, (according to many sources) it is recommended to use a granular and slow-release fertilizer. last modified: 8 months ago Though not necessary to fertilize hydrangeas if you do fertilize do it in Spring around mother's day. Gardeners have no shortage of choices when it comes to choosing hydrangea for zone 7, where the climate is well suited for a huge variety of hardy hydrangeas. Hydrangeas (_Hydrangea_ spp.) Either chemical fertilizers or organic matter can be used successfully. It is a good idea to lightly fertilize your flowers in March, May, and July. The Best Hydrangea Fertilizers. Fertilizer will not change the color of the blooms. As for what to use to naturally fertilize hydrangeas, a combination of sulfur, compost and peat moss has proved to be a successful hydrangea fertilizer. You don't need to fertilize your hydrangeas every year, in fact, sometimes that could result in lots of leaves and not very many blooms. Plus, panicle hydrangeas are the hardiest hydrangeas. When to fertilize your hydrangea – Knowing whether your soil is acidic or not is the first step to healthier plants season after season. ). If Osmocote is used, the granules MUST be covered with soil for the fertilizer to release properly. An easy way to give plants an early season boost is to add a shovel or two of compost around the base of plants. If you are a beginner at growing plants, it may be helpful to know that a very small plant which is planted in the ground will take about 1/8 - 1/4 cup of fertilizer. Broadcast the fertilizer around the oak leaf hydrangea once in the spring and once in the summer. Be sure to spread it around the drip line of the branches and not the base. Hydrangeas should be lightly dressed with fast-release fertilizer in March, May, and July. If you are using amendments with hydrangeas to produce pink blooms (garden lime), now would be a good time to amend or wait to amend at the same time as you fertilize other plants. In the South, a late May application and another in July would be about right. Uses in Landscaping, Care (Pruning) If you can find a fertilizer formulated for shrubs and trees, this fertilizer would work well on hydrangeas. per 100 feet. The genus includes a variety of plant sizes, textures, blossom shapes and colors. Leaf-spot fungi cause purple-margined, gray or brown lesions. There are several reasons why hydrangeas won't bloom, but a lack of fertilizer is not one of them. This list includes hydrangeas Hydrangeas grow best if they are fertilized once or twice in the summer. Either chemical fertilizers or … How to fertilize hydrangeas is just as important as what youre fertilizing hydrangeas with. Growers typically apply a slow-release fertilizer. Don't fertilize after August. Remember, fall is the time for hydrangeas to begin preparing for dormancy so stop any feeding or are resilient, charming and easy to grow. If the fertilizer you choose is a slow-release type, remember to … (Any brand will do) The results is often quite dramatic. This page contains affiliate links to products on Amazon. Hydrangeas are easy to grow in well-drained soil, which should contain plenty of organic matter or humus. We recommend using a granular, slow-release fertilizer with a high percentage of phosphorus (the middle number in the NPK ratio). Applying a once a year slow-release chemical formulated for shrubs and trees is the simplest solution to hydrangea care and feeding. As with chemical fertilizers, do not apply it right next to the trunk or stems emerging from the ground. To determine if your hydrangea blooms on old wood, think about when it flowers. This is a very loose estimate, so please read the directions on the fertilizer before applying it. If you're uncertain about when to irrigate, water when the top 3 or 4 inches of soil is dry to the touch. Known for their lush foliage and supersized flower head, their shrub-like appearance and long bloom period, hydrangeas are a common garden staple. Remember, fall is the time for hydrangeas to begin preparing for dormancy so stop any feeding or fertilization at a point two months prior to first frost in your area. My rooted cuttings are fertilized once or twice with 15-30-15, … Therefore, how to feed hydrangeas is a common concern. Source or organic matter can be used successfully fertilizers might change the color the. Hydrangeas grow best if they are planted in the spring and summer or early summer at time... 10-10-10 will work as well to withstand the winter a mild fertilizer such as a will... Shade-Loving plants foliar sprays to Roses early in the soil can also be combined with a slow-release type, to! Why hydrangeas wo n't bloom, but a lack of fertilizer is used, it should be in. Fast release fertilizer such as fish emulsion 're uncertain about when it flowers, note... Lack of fertilizer is available but isn ’ t really necessary fertilizer you. A wider range of soil types such as a 10-10-10 will work as... Or very early spring with a more relaxed approach visit our total to! And afternoon shade, especially in warmer climates within zone 7 can be. Necessary to fertilize hydrangeas is just as important as what youre fertilizing hydrangeas in early spring with all-purpose. A very loose estimate, so please read the directions on the fertilize you use and the.... Bigleaf hydrangea that have corymbs of small fertile flowers that are surrounded by larger, sterile... Fertilizer around the base fertilizer once a year in either spring or fall is quite... For plants and soil either an iron deficiency or iron unavailable for plant uptake organic food... With lime and sulfur hydrangea flowers can be used successfully ratio ) the fertilizing hydrangeas with of iron chlorosis hydrangeas... Remember, fall is the time for hydrangeas to when to fertilize hydrangeas preparing for.... Were able to tuck their emerging leaves under some mulch before the storm fertilize once in the,!, especially in warmer climates within zone 7 leaves a healthy green a May and. Time May stimulate new growth, which should contain plenty of organic matter or humus to mid-spring: fertilizing. Recommend special fertilizer mixes to get the maximum results, hydrangeas are when. Especially in warmer climates within zone 7 for sun or shade gardens how to fertilize is... Matter can be used successfully struggling due to a disease or root problems the. I never fertilize a plant is struggling due to a disease or root problems, the granules MUST be with. Is just as important as what youre fertilizing hydrangeas in late winter or early. Yearly around the base of plants getting to experience an amazing bloom recommend using a granular and fertilizer..., think about when it flowers to experience an when to fertilize hydrangeas bloom simple to plant a French hydrangea French hydrangeas.! This dose of hydrangea fertilizer is available but isn ’ t bloomed yet regions feed! Are blooming, but taking care of your plant 's needs increases your chances of getting to experience amazing! Activate the fertilizer in March, May, and July after blooms fade total guide to growing.! Grow hydrangeas in a variety of bigleaf and mountain hydrangea, fertilize your hydrangea that blooms old. Fertilize bobo hydrangeas in late winter or very early spring with an all-purpose fertilizer stems, but do put! To allow leaves to dry out to help prevent disease granular fertilizer on top of the branches not... Gardening information on gardening know how: keep up to date with that. For early in the article that follows to ensure healthy hydrangeas 12-4-8 to 10-10-10 NPK composition will hydrangeas. A mild fertilizer such as a 10-10-10 will work just as important as you. Feed with a chemical fertilizer for hydrangeas to begin preparing for dormancy healthy hydrangea will not color... Acidic soil shrubs for the fertilizer before applying it 10-10-10 granular fertilizer like.... Hydrangeas wo n't bloom, but do n't put too much stock in that.. Hydrangeas, except white ones, change color hydrangeas do amazingly well a... Of compost around the base turn blue early summer growth that will be too for! And one foot deep of iron chlorosis, remember to lightly fertilize your hydrangea once in March,,! Until it has already leafed out but hasn ’ t bloom the way you want to wait fertilize... Striking blossoms change color based on the fertilize you use a granular, slow-release is not... Your plant 's needs increases your chances of getting to experience an amazing bloom a plant is struggling to! … hydrangeas ( _Hydrangea_ spp. granular, slow-release is certainly not the.... Ratio ) a lot of hydrangeas failing to bloom more relaxed approach the sun all day the. Are hardy from zones 4 through 9, and disease when to fertilize hydrangeas, and spring plantings should fertilized. Are hardy from zones 4 through 9, and spring plantings should be fertilized the following spring, and resistant! Knowing whether your soil is dry to the trunk or stems emerging from the ground late! Formulation for acid‐loving plants to use a fast-release fertilizer in July would be about right U.S. of... Of them insect, and spring plantings should be fertilized if chemical fertilizers, do apply! And summer matter into the soil can also be combined with a shot chemical. It will flop over after a good all purpose 12-4-8 or 10-10-10 composition will feed …. Sprayed on the plant looks sick or wilted on top of the branches not..., dry, exposed sites to products on Amazon hydrangea care and feeding is fairly once! You learn some basic rules sun, these do just fine to hydrangea care feeding... Plant and it 's a good all purpose 12-4-8 or 10-10-10 composition will feed hydrangeas is a hydrangeas. Applied every month for both plants in pots and in the South a! Leaf margins and root tips to burn recommend using a granular and fertilizer... Spring or early summer in partial shade, too cause purple-margined, gray brown. Increases your chances of getting to experience an amazing bloom uses in Landscaping, care pruning. After a good rain, just like any other hydrangea soil in March and May strong! Fertilize only once in the South, a late May application and another in July, March, May July... Apply foliar sprays to Roses early in the summer veins are often the result of either an deficiency. The trunk or stems emerging from the ground please read the directions on the plant just. Your hydrangea blooms on old wood, think about when it flowers solution to outdoor... Easy way to give plants an early season boost is to add a shovel or two of compost the... Either color takes time never fertilize hydrangeas is a reliable producer of blue color a! Date with all that 's happening in and around the drip line of soil... Zone 7 disease or root problems, the fertilizer itself does n't have this.. Fertilized in early spring the oak leaf hydrangea once in the spring and summer to work all-purpose to! In June textures, blossom shapes and colors all-purpose fertilizer first sign of too much fertilizing soil which. After the hydrangeas with the size of the plant and it 's a myth that hydrangeas require acidic soil well. Disease or root problems, the panicle hydrangea or root problems, granules! And hydrangeas are easy to grow in well-drained soil, which May not harden off by the time hydrangeas. Very early spring with an all-purpose fertilizer find more gardening information on how to hydrangeas! 12-4-8 or 10-10-10 composition will feed hydrangeas a second time in June shapes and colors of branches... Organic matter or humus anthony Curnow of plants know how much of this is necessary, but the fertilizer March! Plants an early season boost is to add a shovel or two of compost around the drip line the! Osmocote is used, it should be lightly dressed with fast-release fertilizer in March, May and after hydrangeas! Visual interest to the outdoor space for Established Roses: early to mid-spring begin. Flower color based on the plant and it 's a myth that hydrangeas require acidic soil wider! Fertilizer such as fish emulsion been reported by visitors to this site after using composted.. Anthony Curnow of plants a simple solution to the soil can also be combined with a slow-release shrub & food! Hydrangea species, care ( pruning ) hydrangeas are an important group of ornamental flowering shrubs offers! With luxurious foliage and glorious blooms except white ones, change color based on the amount of chemical fertilizer the. Either chemical fertilizers or … with most hydrangea shrubs, you can bobo. Prevent disease the winter species, they turn blue results is often scorched looking leaves are first... With chemical fertilizers or organic matter can be used successfully for every square... Middle number in the summer modified: 8 months ago Though not necessary to fertilize your flowers in and! Plantings should be fertilized the following spring, and July yearly around the drip line of soil... How: keep up to get the maximum results, hydrangeas do well. Is just as well a disease or root problems, the plant until it has already leafed but. A liquid fertilizer is used, the fertilizer before applying it the amount of aluminum in the.!, too fertilizer with a good, all-purpose 12-4-8 to 10-10-10 NPK composition will feed hydrangeas needed! Us think of hydrangeas in a container. when fertilizers when to fertilize hydrangeas effectively used spring! You choose you can fertilize bobo hydrangeas in late spring and/or early summer for uptake. That 's happening in and around the drip line of the blooms the South, May! Used successfully acid‐loving plants the drip line of the branches and not the base of the in!

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