Mature Japanese maples do not always need to be fertilized because they have an extensive root system. If you purchase a Japanese Maple in winter, it is important to protect it from temperatures much below 30F. thanks, xman If, over time, you see that the roots of the Japanese maple in a pot touch the side or bottom of the container, it’s time for root pruning. How to Fertilize an Old Japanese Cherry Tree, Oregon State University: Fertilizing Shade and Ornamental Trees, Arbor Day Foundation: Tree Guide: Japanese Maple, Japanese Maples Online: Fertilizing Japanese Maples, Special Formulated Fertilizers for Sweet Cherry Trees, Recommended Fertilizer for Tina Crabapple. Jobe’s fertilizer sticks come in a few different variations depending on the plant. Overfertilization can cause root damage that will exacerbate the observed problems. FREE Shipping. However, I do know that plants in pots tend to require extra fertilizer since it leaches out. 1. In soils in the northwestern United States, Japanese maples seem to resist the ammonium sources of nitrogen. I read online that we shouldn't fertilize it after spring time but wondering if you can provide any expert advise. This moderate fertilization practice will keep your maples healthy. If the soil is compacted or subject to excessive water runoff, the fertilizer can be applied in a series of holes 6 to 8 inches deep in the same area with about five holes per 1 inch of trunk diameter. So they are trying to take hold. A Japanese maple brings such beautiful texture and color to your garden that you’ll want to take top care of the tree. randi_r. This is applicable for both ground-planted Bloodgoods and potted Bloodgoods. Fertilizer for maple trees should have an N-P-K ration formulation of 4:1:2 or 3(N):1(P 2 O 5):2K 2 O. Japanese maples won't survive in soggy soil. Bare-root tree without leaves 3. One of our Best Sellers!! With so many to choose from, you may feel a little overwhelmed when choosing which cultivar of Japanese maple … Both strong winds and hot sun can stress or even kill a maple. Container growing 1. The best test to determine whether fertilization is necessary is a soil test. The trees will take advantage of lawn fertilizer; so do not reapply fertilizer to areas of a yard that have been treated. Winter is a great time to ship Japanese Maples because they are dormant and not easily stressed from the shipping process. Then, insert the fertilizer stick where needed, and cover it again. The analysis is 4% Nitro, Available Phosphate 8% and Soluble Potash 5%, contains feather meal, bone meal. A general guideline to use for mature Japanese maple trees is 1/10 pound of nitrogen for every 1 inch of tree trunk diameter measured at 4 1/2 feet from the ground. Avoid bulbous, rounded pots because when the time does come for re-potting the only way to remove your Japanese Maple will be by breaking the container. Native to Japan, Korea and China, Acer palmatum is a species to which most Japanese Maples belong. Dropping all of the leaves before autumn is another indication that fertilizer may be needed. Zones for hardiness 3. When you start fertilizing Japanese maples, your goal should be to maintain a constant low level of fertility. I recommend feeding once a year in early spring with a slow release fertilizer, like Osmocote. All you have to do is make a little space in the ground by taking out some soil. Japanese maple trees can provide a striking focal point, be the perfect plant to set off a large container, or grow into an impressive bonsai specimen. Using a slow-release fertilizer will greatly lessen the chances of overfeeding. This spring it didn’t come back so I pulled it out and planted a “Red Select” Japanese maple in the same pot. Japanese Maples grown in pots often experience some branch tip dieback in winter. Fertilizer - You can buy a low-release fertilizer, such as Osmocote, and add it to soil mix as per package instructions. When fertilizing it is important to remember to NEVER over-fertilize your tree. Avoid liquid fertilizer once Japanese maples are established and any time after mid-summer. However, I do know that plants in pots tend to require extra fertilizer since it leaches out. Several weeks ago it just all of the sudden…the leaves just went boom brown. Propagating Crimson Queen Japanese Maple Trees . The best time to fertilizer maple trees either during late fall and early spring. Although Japanese maples don't require a high amount of fertilizing, maintaining a low level of fertility throughout the season is necessary to keep your trees healthy and happy. I used the fertilizer pellets, this planting season. We have a Japanese Maple. Water them every day Fertilizing Potted Japanese Maples at the same time if you live in a very hot area or every other day if the heat Fertilizing Potted Japanese Maples doesn’t cause the … 2. Protection from critters 4. Rose Food can be purchased almost anywhere. deep into the soil around the tree, about half way between the main trunk and the drip line of the branches. If you search the internet about the best soil for potted Japanese Maples, you will see a lot of different opinions but one thing they will have in common is a soil that is well-drained. 99 $24.99 $24.99. This simple mix will greatly increase the drainage. The Sherwood Flame cultivar matures at about 10 feet tall and has reddish purple leaves in spring and summer, and the Autumn Glory cultivar reaches 10 to 25 feet tall and gains its crimson color in fall. Fertilizing Japanese Maples. Inadequate soil preparation and improper planting are two frequent causes of plant failure. Smaller ones are still struggling to grow new stems, but made it thru the summer temps. 15 years ago. A product labeled with a 16-4-8 ratio contains 16 percent nitrogen, 4 percent phosphorous and 8 percent potassium. You’ll want to give the plants ample time to adapt to their new conditions. Crimson Queen Japanese maple trees are commonly used for landscaping purposes, not only because of the beautiful leaves, but also because it's smaller than most maples. The Japanese maple (Acer palmatum) is a deciduous shade and ornamental tree with at least 19 known cultivars that display red and crimson colors. These products seem to have been beneficial to both my inground and potted maples, most of my trees are potted. Simultaneously, an acre potting mix from Mother Earth took our Japanese maple planting, transplanting, and potting soil runner up position. However, from years of growing maples in containers I have come to learn that Japanese maples prefer to be somewhat snug in a container. Are there any other fertilizers that I can use safely? 1. You can propagate Japanese maple trees in the late spring by taking softwood stem cuttings on the midsummer with semi-hardwood stem cuttings. The typical tree is about 10 feet tall, compared to other types of maples that can be up to 100 feet. Alternatively, start Japanese maple feeding after the last freeze in spring. General location 2. Divide the fertilizer between the holes and tuck the pellets into them. Japanese maples (Acer palmatum) are loved by gardeners for their graceful shape, colorful leaves and striking fall foliage. 4% slow release Nitrogen from feather and fish meal. It would be difficult to drown a potted Japanese maple with one good soaking, but watering too often and not letting it dry out can do big damage rather quickly. I hope that this thread will help expand our understanding of the needs of Japanese maples and what soil may best provide the ideal condtions to satisfy the plant and the grower. 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