Approximately 280 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:6
Type of plant - perennial
Flower: br. RED-PURPLE
Height in meters: 0.7
Astrantia major Ruby Cloud
is included in the following B and T World Seeds flowering plant categories:
43: Herbaceous Border Plant Seed List
44: Cut flowers Commercial and other Recommended Varieties
165: Shady Condition Plant Seed List
185: Plant Species whose germination is improved by Smoke
Astrantia major Ruby Cloud seeds will usually germinate in 30-180 days, even under good conditions germination may be erratic. Normally will only germinate with light so surface sow. Sow Astrantia major Ruby Cloud 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".
(Pre-chill for 4 weeks).