Fastest Growing Shade Tree! Some biologist argue it is not really another species, but rather a cross between tomentosa and elongata. The flower’s color is not lavender nor white, but somewhere in-between! This species adds more genetic variance to your plantation. It should do well where ever tomentosa or elongata can grow.
Paulownia is a genus of between 6-17 species of plants in the monogeneric family Paulowniaceae, related to and sometimes included in the Scrophulariaceae. They are native to much of China, south to northern Laos and Vietnam, and long cultivated elsewhere in eastern Asia, notably in Japan and Korea. They are deciduous trees 10–25 m tall, with large leaves 15-40 cm across, arranged in opposite pairs on the stem. The flowers are produced in early spring on panicles 10-30 cm long, with a tubular purple corolla resembling a foxglove flower. The fruit is a dry capsule, containing thousands of minute seeds.
For centuries, the Chinese have grown Paulownia, also known as Empress and Sapphire trees for beauty and for highly-prized timber. Paulownia is a fast-growing shade tree that produces a lightweight timber that is used in the making of moldings, cabinets, veneers, furniture and even musical instruments.
In Japan when a girl child is born, they plant a Paulownia tree for her and when she marries they build her wedding chest from the tree. They also believe that the tree should be planted next to the house so that the Phoenix would come protect them and bring good luck.
Trees will not do well in overly wet soils or salt sea air. Paulownia trees may be grown in colder climates, but the tree will die back to the ground every winter. If it dies back every winter it will never reach mature blooming size, but it will still add interesting foliage to your yard or garden for the summer. Mulch roots heavily with straw or leaves in fall in climates that get below 15 degrees F (10 degrees C).
Genus - Paulownia
Species - Catalpifolia
Common name - Paulownia Tree
Pre-Treatment - Not-required
Hardiness zones - 6 - 9
Height - 40'-70' / 12.2m - 21.3m
Spread - 30'-50' / 9.1m - 15.2m
Plant type - Tree
Vegetation type - Ornamental deciduous
Exposure - Full Sun, Partial Sun
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Clay, laom, Sand, well drained
Water requirements - Average Water
Landscape uses - Feature Plant, Shade Trees, Street Trees, Tropical, Vine
Germination rate - 85%
Bloom season - Spring, early summer
Leaf / Flower color - Green / Lavender-white