Ailanthus altissima - Tree of Heaven

Description and Uses

Ailanthus altissima (Tree of Heaven) is a temperate tree from North China . It is mainly grown for its timber crops , which have a no shelf life. The crop is harvested by total removing. It starts flowering after 9 - 12 years. The yield will be inapplicable, but in its top season there will be a yield of inapplicable. Other crop types include; apiculture, timber, fuel, gum resin, ornamental, poison herbicide, medicinal. The {missing data} is used as inedible . The bark is used as " {missing data} " with Ailanthone (0.40% - 0.60%) as its significant phytochemical. There is sumac oil extracted by steam distillation from the tree's {missing data} yielding 0.30% - 2.00% oil. The tree's wood is called Chinese sumac wood and has a density of 640 - 660 kg/m³. Regarding firewood production the tree's growing speed is fast, it's energetic value is 4600 ckal/kg and the wood's drying speed is medium. After 12 years the tree can be totally removed as it reached its commercial and ecological goal. Ailanthus altissima has a lifespan of 50 years.

Environmental limitations

The tree is 25 meters tall with a crown of 17 meters wide. The tree prefers a planting distance of 400 cm and a row distance of 400 cm. It is very fast growing and partial shade tolerant. Ailanthus altissima has a shallow root-system and it has symbiotic associations with the fungi (endo-mycorrhiza). It is not able to fix nitrogen with "any bacteria. The name(s) or string of bacteria include(s) "not applicable ". The tree's flower-morphology is bi-sexual and is pollinated by bees. Ailanthus altissima is deciduous in winter and a bit allelopathic and has no thorns.

Ailanthus altissima thrives in an altitude of 0 to 2000 meters above sea-level (temperate). The minimum temperature is -9°C; optimally between 10 - 29°C. The optimal rainfall is 1550 mm/year. Without irrigation the annual rainfall should be between 300 - 2500mm (L/m²). The optimal soil-pH is between 6.0 - 8.0 in a soil texture of loam. To salt it is a bit tolerant to wind tolerant and to fire tolerant.

Pests and Diseases

Ailanthus altissima is susceptible to the following pests: . And it's susceptible to the following diseases: (missing data) , , .

Seed Propagation

Seeds are epigeous and can be stored for 5 months. There are approximative 31500 seeds/kg. The seeds can be propagated as followed: {missing data}