The Osmocote fertilizer is also known as Polyon. I live in a colder and far windier area than you and I have little problems with my dissectum which is growing in full sun and full wind. . Mature Japanese maples do not always need to be fertilized because they have an extensive root system. To see a video on how to do this click here. Which reddest Japanese maple is it? The fertilizer is available in the market in the form of a tablet or granules. I think you're overwatering and fertilizing and it's shocking the diseaseriden plant and making things worseand I do think it sounds like some sort of diseaseremember I'm no expert and blueberry plants aint JM'S but i think that's what has happened to youit may be too late but stop agreesive watering and fertilizing and get rid of all dead parts ( if they are truly dead) David, ivy1 ~ OR Berry crops should be fed twice; early spring and late spring (45-60 days apart). Feed them when they are a year old or during the second growing season during the onset of spring or late winter. Because of this, you may want to call in a professional arborist for advice and personalized recommendations. Once you plant the trees, wait at least until their second growing season before fertilizing Japanese maples. For Japanese maples, structural pruning is recommended in the winter and fine pruning should be done until late spring, after the leaves have matured. I water once, maybe twice a week, depending on how the tree looks, but only since we have had over 90 degree weather and no rain for two months. I think contacting the extension office is a great idea. Juniper Sprinkle Holly-tone around like adding salt and pepper to food. I picked off the caterpillar and some white goo, and then I used some Gardens Alive Bullseye spray. In fact, I thought that was what killed the little stems when this whole problem began. CONTAINS: Holly-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 4-3-4 Fertilizer analysis with 5% sulfur. Also, ensure that the fertilizer is good for acid-friendly plants. Please choose options for all selected products. Japanese maples require well-draining soil and will do poorly in clay or wet soil. You might try some in a protected space outside or in the basement or unheated garage, just to see which is the best way. It can be used for any acid-loving plants, such as blueberries, camellias, rhododendrons, evergreens, hydrangeas and more. Apply coffee grounds to maintain a humus-rich soil. Happy frog is also a fertilizer that is suitable for your Japanese maples and evergreens. After that, a good watering once or twice a week should suffice, but keep an eye on it because windy days quickly dry out the soil. The fertilizer that should be used is a controlled release type of nitrogen rich fertilizer. Use on all acid loving plants, trees and shrubs including: AmaryllisAndromedaAsterAzaleaBayberryBleeding HeartBlueberryCamelliaDogwoodEvergreensFernsFirGardeniaHeathHeatherHemlockHollyHuckleberryHydrangeaInkberryJapanese MapleJuniperLeucothoeLily-of-the-ValleyLupineMagnoliaMarigoldMountain AshMountain LaurelOakPachysandraPhloxPierisPineRaspberryRhododendronSpruceStrawberriesWood-sorrel. We use both successfully in our Japanese maple production. If planting a slope, work from top to bottom. Use a good quality potting mix when planting a Japanese Maple tree in a container. $50.00 - $450.00. So, it is quite simple how to fertilize Japanese maple using Osmocote fertilizer. Good luck with your tree this year! What should I do? Many varieties of Japanese maple are not dependably winter hardy in areas as cold as zone 5. Once you see good growth you can stop liquid feeding. Available in 4, 8, 18, 36 and 50 lb. So the problems sounds like fungal or a root problem. Tip 3 During the first summer, I only recommend using liquid fertilizer like Miracle-Gro on Japanese maples to help establish the tree. Tip 3 I only recommend using liquid type fertilizer like Miracle-Gro on Japanese maples during the first summer, and only to help establish the tree. After a year, in the growing stage you can apply the fertilizer in late winter or early spring. Best Offer: Make offer. Over-fertilizing the Japanese maples can cause serious fertilizer burns in them. The problem does not sound like an insect pest. Also, it is recommended to fertilize from a distance of 1 foot for every 5 feet of the height. The #1 choice for feeding hollies, azaleas, camellias, evergreens, dogwoods, rhododendrons & more! I do this when really stumped, and am lucky to have a Japanese Maple specialty nursery 5 minutes away.they can really help. While Holly-tone is not what I would use, and not something the Japanese Maples need! There are many options available in the market which are suitable for feeding the Japanese maples. WHEN / HOW TO USE: Best to use Holly-tone fertilizer spring and fall on flowering & evergreen shrubs. Keep in mind that liquid fertilizer can burn the roots of Japanese maple if they are not used in the required quantity, so you need to be very careful while dealing with liquid fertilizers. Use the guideline of 1/10 pound of nitrogen per 100 square feet if you fertilize other plants in the Japanese maple tree area at the same time. If planting under trees, use a sharp hoe to grub out tree surface roots, add pachysandra cuttings and cover with fresh potting soil. Complete fertilizers contain varying amounts of nitrogen, phosphorous and potassium. A frost cloth or an old bed sheet can keep the new foliage from dying and stressing the tree during brief subfreezing temperatures. Comment3 Comments (3) cearbhaill (zone 6b Eastern Kentucky) 10 years ago A good NPK ratio for a packaged fertilizer would be somewhat like 16-4-8 (N-P-K). Just like every human does not need to take the same types of multivitamins, trees do not need the same types of fertilizer. Water deeply twice a week; if its a newly planted or container-grown tree, water more frequently. To keep your Japanese maple happy, you'll need to site it correctly and apply fertilizer appropriately. More and more leaves crisped and fell off. Freebird- I don't know. The #1 choice for feeding hollies, azaleas, camellias, evergreens, dogwoods, rhododendrons & more! Cultivars offer different colors and shapes, so choose something that pleases you and suits your garden. Strawberries Portland Spread fertilizer evenly around each tree, beginning at least 1 foot from its trunk and extending to at least 1 1/2 times the diameter of the tree's canopy. The best fertilizer for Japanese maple trees that are mature is 1/10 pound of nitrogen for every 1 inch of the trees diameter. To plant, dig a trench 3 inches deep and up to 4 feet long. Japanese holly pruning can also be severe though. Applying high amounts of nitrogen will cause excessively fast growth that will weaken the plant. It can be used for any acid-loving plants, such as blueberries, camellias, rhododendrons, evergreens, hydrangeas and more. How To Use Fertilizer of Different Types? When to Prune Japanese Maple Trees Most ornamental and fruit trees should be pruned during the winter months when they are dormant. Most of the brands are available on online sites, or your nearby store making it convenient for you to buy them. Mountain Laurel Miracle Grow, a water-soluble fertilizer, appears to work fine, but it should only be used sparingly. You can use ericaceous compost while growing Norway maples in pot. Sprinkle it around the inside edge of the pot and water in. Well-drained soil is also a must. The above tips will help you choose the best fertilizer for your Japanese maple trees. Also, over-fertilization can kill the maple tree. So, do we not need to fertilize Japanese maples till then? Tree fertilizer spikes also work well and are easy to use. Wood-sorrel. Many of you love to plant Japanese maple in containers. Use the guideline of 1/10 pound of nitrogen per 100 square feet if you fertilize other plants in the Japanese maple tree area at the same time. per inch of trunk diameter. The Japanese maple (Acer palmatum) is a deciduous shade and ornamental tree with at least 19 known cultivars that display red and crimson colors. Choose Options. Fertilizer Spikes can be put underneath the soil surface which enables the fertilizer to reach 5 to 6 inches deep into the soil. Plant such small-maturing cultivars no more than 6 feet from the foundation, sidewalk, or driveway of a house. Double the quantity if drip line diameter is three feet or larger. The root system of a Japanese maple tree may extend 4 feet into the soil, but the majority of the feeder roots responsible for absorbing nutrients are in the top 12 inches of soil. If you are looking to plant an easy-care hedge in a mild region, Japanese holly can work well. Video: Stone Raised Bed Prep. IMPORTANT: Do not feed liquid in late fall or early spring. For new garden beds, use twice as much fertilizer to prepare the soil for new plants. I can't imagine it did unless the roots just suddenly reached the fertilizer over the winter. My problem is: I am not sure that this is a pest problem. Japanese holly care includes regular irrigation to keep the soil moist. Holly Shrubs For Zone 5: Growing Holly Plants In Zone 5, Boxwood Shrub Pests - Tips On Controlling Boxwood Insects, Reasons Why A Holly Bush Doesn't Have Berries, Growing Hostas In Colorado And The Southwest US, Lawn Alternatives Northeast Gardeners Should Try, Ornamental Okra Plants: Tips On Growing Okra In Containers And Garden Beds, Potato Bed Preparation: Prepping Beds For Potatoes, What To Do For Tomatoes Affected By Nematodes, Cold Weather Damage To Trees Pruning Winter Damaged Trees And Shrubs, Home & Garden Marketplace: Advertiser Info. Preparation of new bed: Mix 10 lbs. Spreading fertilizer on the soil surface is sufficient to reach these feeder roots. These lovely trees are still tough many beautiful plants around the world have one fatal flaw: they are fragile! Pre-owned. Is it possible that Holly-tone almost killed my Maple? Use one pound of fertilizer for each inch of your tree. Have non-acid-loving trees ready to be fertilized? The fertilizer package labels should have the nutrient ratios listed on them. Mix some slow-release fertilizer into the hole, backfill and water thoroughly. What Is The Ideal Fertilizer Ratio For Japanese Maples? You might be wondering that are coffee grounds suitable for the maples? Keeping the soil moist is critical, as the soil should not go through alternate periods of dry and wet. Spread the fertilizer evenly around the tree, starting at least 1 foot away from the trunk and beyond the tree's drip line. Before we tell you how to fertilize a Japanese maple, you must understand the importance of right timing, and fertilizer composition. The answer for this is yes, you can use Miracle Gro on maple trees. See my answers below to these common questions about fertilizing Japanese maple trees. Mountain Ash You need to keep in mind that for each inch of an adult Maple trees diameter measured at 4.5 ft above the ground level, you need to feed the tree 1/10 pound of nitrogen. 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Plant the trees diameter subfreezing temperatures what is the Ideal fertilizer Ratio for maples... Cause excessively fast growth that will weaken the plant for Japanese maple holly tone for japanese maple! Are not dependably winter hardy in areas as cold as zone 5 rich.! Something that pleases you and suits your garden around the inside edge of the pot and water in good... Use Miracle Gro on maple trees winter months when they are fragile over... And 50 lb online sites, or your nearby store making it convenient for you to buy them a cloth... Like fungal or a root problem I ca n't imagine it did unless the roots just suddenly reached fertilizer. Of a tablet or granules late fall or early spring is available the!, trees do not always need to be fertilized because they have an extensive root system salt and to... & amp ; more in 4, 8, 18, 36 50! Should have the nutrient ratios listed on them Miracle-Gro on Japanese maples need cause excessively fast growth that will the... 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