The infection has no cure but can be managed. Verticillium wilt and other infections can kill your coral bark bonsai if you don’t catch it fast enough. We advise you to use these methods during autumn, as your new bonsai will grow best during that season. You can grow a new coral bark Japanese maple with seeds, cuttings, or air layering. Add a liquid fertilizer once a week for a stronger dose of nutrients. This option should have a low nitrogen content, as too much of this element will affect the growth rate of your bonsai’s leaves. Use a solid organic fertilizer as added nutrients while growing your coral bark Japanese bonsai. When the temperature reaches near freezing, the tree should be sheltered or moved indoors. The tree should be kept out of the summer afternoon sunlight, as too much exposure will affect the foliage’s health.ĭuring winter, the tree will enter a state of hibernation if kept outdoors in a cold environment. However, the bonsai can survive with partial sunlight exposure but will grow less. The coral bark maple requires a full day of sunlight where possible. Larger branches should be trimmed during autumn and have cut paste applied to prevent any infection. However, you should only trim these smaller parts every second year to prevent irregularities with their growth. You can trim most of your coral bark Japanese maple anytime during the year. When trimming roots, use a thin stick such as a pencil or chopstick to untangle them and get clean cuts. We recommend you wash the container thoroughly to prevent any infection in the roots during this time. Depending on how much you trim the roots down, you may need a larger pot every few years. This frequency won’t change regardless of the bonsai’s age as the species rapidly regrows its roots. Repot your coral bark tree every second year. Without careful attention, it’s easy to overwater this bonsai. However, at times as the climate and environment change, you’ll increase this frequency. Often, you’ll need to water the tree once a day. The coral bark Japanese maple is a tricky tree to water. However, aside from draining well, there are no added benefits. This option is easier to buy and replace during the repotting season. This option will retain more moisture and nutrients while still draining and preventing damage to your tree’s roots.Īlternatively, a regular soil mix will work well when growing this bonsai. Overall, the best soil choice for the coral bark Japanese maple is an akadama mix with pumice and lava rocks added to it. We also cover alternatives and solutions to issues you may encounter when handling the requirements. In this section, we’ll cover all the details that were left out in the quick guide. How To Care For A Coral Bark Japanese Maple Bonsai
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