Paulownia Roots

1. Ground water level: more than 1.5m. 2. Soil texture: permeablility or breathability good loam and sand soil, avoid clay, harden, ventilation adverse soil. 3. PH of soil, 6-7.5 is the best, 5-8.9 is acceptable. 4. Good irrigation and drainage systerm will be better. 5. Elevation up to 2000m is acceptable