Approximately 950.00 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:3
Type of plant - perennial
Flower: MIX, ORANGE to pale YELLOW, fl. May - June
Fruit: (stratify 8 weeks, GA3)
Height in meters: 0.6
Trollius cultorum x New Hybrids
is included in the following B and T World Seeds flowering plant categories:
9: Alpine and Rock Garden Seed List (Hardy and Tender)
43: Herbaceous Border Plant Seed List
44: Cut flowers Commercial and other Recommended Varieties
Trollius cultorum x New Hybrids seeds will usually germinate in 30-365 days, even under good conditions germination may be erratic. Sow Trollius cultorum x New Hybrids seeds on the surface of a Well drained seed sowing mix at about 10°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".
(Pre-chill for 2 weeks).