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Fertilizer. Japanese maples should only be fertilized after they’re a year old, or during the second growing season. The best time to fertilize is late winter or early spring. Japanese maples are naturally slow-growing trees, so stimulating rapid growth with a high-nitrogen fertilizer should be avoided.
What fertilizer is best for Japanese maples?
I recommend using a slow or controlled release type fertilizer. Commercially known as Polyon or Osmocote, these are the most common and both work very well on Japanese maples. We use both successfully in our Japanese maple production.
How much fertilizer does a Japanese maple need?
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. If you fertilize other plants in the Japanese maple trees’ area at the same time, use the guideline of 1/10 pound of nitrogen per 100 square feet.
How often should you fertilize a maple tree?
Maples should be fertilized once or twice a year.
Are coffee grounds good for Japanese maple?
Soil and water are the two most important factors for maintaining healthy Japanese maples. So maintain a humus-rich soil by applying coffee grounds. Coffee grounds are free at Starbucks. For a 4-foot-tall Japanese maple, I recommend applying 4 pounds of coffee grounds per tree per season.
How do I keep my Japanese maple healthy?
Keep Japanese Maple Healthy in Summer Keep them moist – don’t forget to keep the soil damp, with mulch and regular watering. Give them afternoon shade – when planting your tree, arrange for afternoon shade in summer. Choose a suitable variety – some forms resist burning better than others.
Is Epsom salt good for Japanese maples?
Epsom salts also appear to help Japanese maples struggling through the summer season. A few tablespoons of Epsom salts to a gallon of water used as a drench helps reduce lime buildup and lowers alkalinity and the salt levels of our soil.
When should a Japanese maple be pruned?
When to Prune Japanese Maple Trees For Japanese maples, it is recommended to do structural pruning in the winter and wait until late spring, after the leaves come out, for fine pruning. Summer can also be a good time for removing larger branches and for removing dead, damaged, or diseased wood. Know the tree.
What’s the best fertilizer for maple trees?
The best fertilizer for maple trees is one that is rich in nitrogen. You can find the ratio of the nutrients listed on the fertilizer label of a respective fertilizer. You should never use a quick-release fertilizer, but use a slow-release fertilizer such as 10-4-6 and 16-4-8.
How often should you water Japanese maple?
Plan to water heavily twice a week during normal weather and three or even four times weekly in periods of drought. Whether your tree is young or mature, it will grow best in soil kept consistently moist by regular watering and mulching.
What kills a maple tree?
Verticillium Wilt – Also called maple wilt, this fungus is a common and serious problem that can kill trees. This infection starts in the root system and works its way up the maple tree, resulting in cankers and dieback.
Do maple trees need a lot of water?
Maple trees require around 11 gallons of water a week to stay healthy. Keep an eye out for wilting or leaf scorch (leaves browning and/or curling up), as this is a sign of drought stress. Make sure that the water is reaching at least 10 inches below the surface, properly hydrating the maple tree’s root system.
Is cow manure good for Japanese maples?
Keep in mind, Millorganite is good for your ornamental plants but not your vegetable garden because it’s made from sewage sludge. When installing new plants, especially Japanese maples, mix some rotted (bagged) cow manure with the soil as you back fill around the plants.
Should I mulch my Japanese maple?
Mulching is always a good idea for fall; it will help insulate the roots for winter and protect their early spring growth. Winter care of your Japanese Maples: Mulch with about 3″ of shredded hard bark, keeping it a few inches away from the trunk to allow air to circulate.
Why is my red Japanese maple turning green?
The most common deficiency in Japanese maples is manganese. Some Japanese maple cultivars that normally feature red leaves can lighten and turn green if they do not receive adequate sunlight. A Japanese maple suffering from a nutrient deficiency will typically have yellow or yellow-green leaves with darker veins.
Why are the leaves turning brown on my Japanese maple tree?
Japanese maple trees are often understory trees in their native habitats. Over-exposure to sun can result in brown leaves, a phenomenon also known as “leaf scorch.”1 A hot summer can leave even established specimens that are too exposed to sun with brown leaves, especially if other debilitating factors are present.
How do you rejuvenate a Japanese maple tree?
Your Japanese maple may be dying from root rot, or “wet feet.” Amend the soil by digging in one part peat and one part sand to one part topsoil until the soil drains well when you pour water on it. Cultivate the soil with a garden spade to keep it loose and aerated.
Are Japanese maples acid loving plants?
They do better in acidic soils and do not do as well in alkaline soils. Japanese Maple are greedy feeders, especially when young. Before planting, work as much compost as you like into the soil around the tree, and keep adding it during spring and early summer.
Is Osmocote good for trees?
Fannin Tree Farm highly recommends using Osmocote Flower and Vegetable on all your trees twice a year in April and August. It is a pelletized slow-release fertilizer that releases its nutrients over several months. It will not burn plants or trees and only requires two fertilizations per year.
