Outdoor: The trees will need to be moved to a wintering area this month. If you need any supplies such as mulch, heater, or shelving, you should acquire them very soon. Have everything ready so you can put the trees away quickly if needed. Do not bring trees indoors on chilly nights. Be sure to water as needed both before winterizing your trees and while they are in winter storage. Do not fertilize. Remove leaves from deciduous trees and fruit or seeds before putting the trees into the wintering area. Trees to be placed in enclosures may be sprayed with a fungicide. Needle prune pines before storing the trees. Wiring should be checked carefully and tight wires removed. Many trees seem to have put on an exceptional amount of girth this season, so check the wires thoroughly. Do not repot at this time.
Indoor: All indoor trees should now be indoors. Be sure to water as needed. The watering needs may differ from when the trees were outdoors, so watch them carefully and adjust accordingly. Fertilizer may be given to trees under artificial light but withheld from trees on windowsills.
Be sure to give the trees adequate light. If a tree is kept at a window, it will need to be within two feet of the glass. Trees under fluorescent lights need to be within six to twelve inches of the tubes. Always run fluorescent lights for fourteen to sixteen hours per day.
Works Cited Editor. (Volume XIV, Number 10, 2007, November). Things To Do This Month. Bonsai Hai . Prairie State Bonsai Society. Owen, G. (1990). The Bonsai Identifier. London: Quintet Publishing Ltd. Tomlinson, H. (1990). Readers Digest Home Handbooks: Bonsai. Pleasantville, N.Y.: Readers Digest Association, Inc.
