Paulownia Pao Tong Z07, also called Super Hybrid, is a cross of 3 species of p. Tomentosa, p. Fortunei and p. Kawakamii. The variety becomes one of the most popular among all other varieties in industrial production because of these qualities:
- Rapid growth. Studies have shown that the trunk diameter reaches 40 cm in 7 years, much faster than other varieties. The fast growth allows to reduce the harvesting time and to increase the wood production;
- Bois de haute qualité, tronc droit, haut et dense;
- Cold hardiness. The most important factor that has made Z07 popular in colder climates where growing other Paulownia varieties was not possible. It is resistant to extreme heat (up to +40c) and frost (down to -33c);
- Resistance to diseases, microbes and parasites;
- Easy adaptation to different growing conditions;
- Drought resistance once the tree is established.
Because of the tree's small crown, 640-850 trees per hectare can be planted.
Like other Paulownias, it blooms in spring in years 3-4. The bees love it!
It is unpretentious to the soil, can be grown anywhere, even on dry soils containing up to 2% lime; but deep, moderately moist, drained, sufficiently fertile and clayey soils are the best for its cultivation. It is also a heliophyte, to cultivate preferably in open and well-lit places.