Bonsai Temperature Zones
Plant growing zone maps by yoko in tree and plant care.
Bonsai temperature zones. It is the simplest and most cost effective solution to over wintering but it comes with a few problems which must be addressed. They do not thrive indoors where the light is generally too dim and humidity often too low for them to grow properly. Tropical tree species need relatively high temperatures throughout the year similar to the standard room temperature of your living room. Most outdoor bonsai trees need sunlight for at least a few hours a day.
Outdoor tree and plant growing zones. The maps below are based on the average annual minimum winter temperature that means over the course of years the coldest temperature degree registered for each winter. In theory you can count on hitting that average number once during the winter. Light is the first.
It needs lots of light or even full sun especially when kept indoors. More important is that bonsai trees from temperate climates need their period of winter dormancy but most species need some protection from frost and strong winds during that time. Specific care of outdoor bonsai species. All of our bonsai care pages state a zone hardiness zone.
Common bonsai species particularly those from the japanese tradition are temperate climate trees from hardiness zones 7 to 9 and require moderate temperatures moderate humidity and full sun in summer with a dormancy period in winter that may need be near freezing. Most growers of tropical and semitropical bonsai bring their trees inside the house for the winter when temperatures start falling below 50 degrees. Specific bonsai care guidelines for the jade bonsai position. The jade tree is considered an indoor tree in most temperate zones although it can be grown outdoors in full sun and sufficiently high temperatures.
Its handy if you are. Cold climate bonsai tree types if you live in an area that does not get extreme winter weather temperatures that do not fall lower than 25 degrees fahrenheit or 4 degrees celsius then you have the option of choosing temperate climate trees such as junipers boxwoods cotoneasters yews or roses. The plant growing zones below are a general guide to show you the different temperature growing zones for trees and plants. The usda plant hardiness zone map.