Autumn Prep 2023

Strange weather in October (see below) that confuses trees and gardeners.

No change of color in deciduous, and hoping the last pruning and partial defoliation will recover fully before dormancy.

Red Alder defoliation is slowly recovering—still developing trunks and branches, so defoliation may not have been appropriate this summer.

  • Impatiently inspected cuttings, and repotted 3 Chinese Quince as Mame for fun.

  • Checking wiring and re-applying, as needed.

  • Moving some slow growth seedling to ground growing (raised bed) to encourage trunk growth. e.g. Gingko. I have many trident maples in 1gal grow pots. Not sure if I should repot them in spring for more growth.


1. Windy conditions, like we have seen recently, will wick moisture away from the top layers of soil but may not actually remove moisture below. I have found some of my clients keep watering every day because the trees “look dry” but actually are quite wet. Be sure to use a chopstick or finger to move the top level and check moisture levels below the top soil.

2. Leaves and debris are falling from surrounding trees and landing on the bonsai. Many times those leave bring with them pests and or fungus. Be sure to clean off your trees and remove falling debris. Your trees may be shedding their own leaves and dropping on the soil. Be sure to clean those up regularly.

3. Some of us have very little moss growth on trees this summer but, suddenly as temperatures drop and sun- light penetration has decreased, moss is starting to make a comeback. Monitor moss and ground growth carefully to ensure it stays away from the trunk and bark of your trees.

4. Plan your repotting season.

SBBK Snippet, Jerry Carpenter

Michael WeiComment