Pseudotsuga sinensis is a species of conifer in the Pinaceae family. It is found in China (in Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan, and Zhejiang provinces) and Taiwan as well as in northernmost parts of Vietnam.
The timber is used for construction, bridge building, furniture, and wood fiber.
Genus - Pseudotsuga
Species - Chinensis
Common name - Chinese Douglas Fir
Pre-Treatment - Required
Hardiness zones - 7 - 10
Height - 30'-35' / 9 - 11 m
Spread - 20'-30' / 6 - 9 m
Plant type - Tree
Vegetation type - Evergreen
Exposure - Sun to Partial Sun
Growth rate - Medium
Soil PH - 4.5-6 (from very acidic to acidic)
Soil type - Clay, Loam, Limestone soil
Water requirements - Drought Tolerant, Average Water
Landscape uses - Alpine, Feature Plant, Foundation, Screening / Wind Break, Shade Trees
Germination rate - 70%
Leaf / Flower color - Green / --
|Germination||1. Soak the seeds in a bowl of cool water for 24 hours.|
2. Stratify seeds in a plastic bag full of moist sand inside the refrigerator for 30-60 days. Keep the sand barely moist during the cold stratification period.
3. Prepare a pot for each seed. Fill 8-inch plastic pots with garden soil taken from the bed where the trees will eventually be planted. Sow one seed in each pot at a depth of 1 inch.
4. Water the seeds to a depth of 3 inches after planting them. Maintain moisture at a 3-inch depth during the germination process.
5. Place the pots outdoors in a sheltered spot where they will be exposed to direct sun in the morning and afternoon. Protect the seeds from direct sunlight during the hottest part of the day since the soil will warm too quickly and dry out.
6. Watch for sprouting one month after sowing. Maintain the same light and moisture conditions provided to the seeds during germination until they grow to 4 inches in height.
7. Plant the seedlings into a sunny, sandy bed at least 75 days before the first frost in autumn, or shelter the seedlings in a cold frame until the following spring if it is too late in the year for planting. (info source: eHow.com)