Paulownia tomentosa - Foxglove tree

Description and Uses

Paulownia tomentosa (Foxglove tree) is a tropical tree from North China . It is mainly grown for its timber crops , which have a {missing data}. The crop is harvested by total removing. It starts flowering after 3 - 4 years. The yield will be {missing data}, but in its top season there will be a yield of {missing data}. Other crop types include; timber, ornamental, fodder, . The {missing data} is used as {missing data} . The {missing data} is used as " {missing data} " with {missing data} ({missing data} - {missing data}) as its significant phytochemical. There is {missing data} extracted by {missing data} from the tree's {missing data} yielding {missing data} - {missing data} oil. The tree's wood is called {missing data} and has a density of 280 - 340 kg/m³. Regarding firewood production the tree's growing speed is fast, it's energetic value is 2900 ckal/kg and the wood's drying speed is {missing data}. After 12 years the tree can be totally removed as it reached its commercial and ecological goal. Paulownia tomentosa has a lifespan of 80 years.

Environmental limitations

The tree is 18 meters tall with a crown of 11 meters wide. The tree prefers a planting distance of 300 cm and a row distance of 300 cm. It is very fast growing and intolerant to shade. Paulownia tomentosa has a deep 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 hermaphroditic and is pollinated by itself. Paulownia tomentosa is {missing data} and not allelopathic and has no thorns.

Paulownia tomentosa thrives in an altitude of 600 to 3000 meters above sea-level (tropical). The minimum temperature is -5°C; optimally between 23 - 30°C. The optimal rainfall is 1650 mm/year. Without irrigation the annual rainfall should be between 550 - 2200mm (L/m²). The optimal soil-pH is between 5.0 - 8.0 in a soil texture of loam. To salt it is a bit tolerant to wind {missing data} and to fire intolerant.

Pests and Diseases

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

Seed Propagation

Seeds are orthodox and can be stored for 36 months. There are approximative 5000000 seeds/kg. The seeds can be propagated as followed: {missing data}