Approximately 14.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:9
Type of plant - evergreen tree
Fruit: cones to 24x8cm....(germ. 2-4 weeks, no strat.)
Foliage: to 40cm.x1mm., in 3s
Height in meters: 50
Pinus roxburghii seeds may be subject to seasonal availability
Common names for Pinus roxburghii:
is included in the following B and T World Seeds flowering plant categories:
30: Exotic and Other Fruit and Nut Tree and Shrub List
38: Indian Native and Introduced Plants
157: Conifer Seed List
192: Tropical Commercial Selection Trees Shrubs and Flowers
699: Ayurvedic Medicinal Herbs
952: Wholesale Selection
Pinus roxburghii seeds will usually germinate in 30-60 days, even under good conditions germination may be erratic. Normally will only germinate with light so surface sow. Sow Pinus roxburghii seeds on the surface of a Well drained seed sowing mix at about 15°C.
Stratification (cold treatment or vernalization) Some seeds need to be overwintered before they will germinate. Some seeds need just a couple of weeks, others 3 months. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4°C or 5°C in a refrigerator. The seeds should not be frozen or in a wet medium. Very small seeds can be sown on the surface of their growing medium, in pots sealed in plastic bags, and kept in the 'fridge. Many vernalized seeds need light to germinate when they are sown in the "Spring".
Soak seed (Pre-chill for 6 weeks)