Approximately 1.93 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 - tree
Flower: WHITE, to 2.5cm., in umbels 3-4
Fruit: -2.5cm., subglob., RED, BLUE pruinose
Foliage: -10cm. long, narr. obovate
Height in meters: 11
Common names for Prunus americana:
is included in the following B and T World Seeds flowering plant categories:
29: Temperate Forest and Woodland Tree and Shrub Seed List
30: Exotic and Other Fruit and Nut Tree and Shrub List
86: Natives of U.S.North East
87: Natives of Central U.S.A.
131: Toxic Plants
161: Edible Flowers
185: Plant Species whose germination is improved by Smoke
719: North American Native Ethnobotanicals
Prunus americana seeds will usually germinate in 120-365 days, even under good conditions germination may be erratic. Normally will only germinate with light so surface sow. Sow seeds about 2mm deep in a Well drained seed sowing mix at about 22°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 overnight (Pre-chill for 4 months)