Approximately 300 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
B and T World Seeds' reference number:
Type of plant - annual
Fruit: YELLOW-BROWN skin, high quality
Foliage: ..................(high yield + very good storage)
Allium cepa Rijnsburger 5 mid to late summer
is included in the following B and T World Seeds flowering plant categories:
83: Vegetable Seed List
160: Salad Vegetable Seed List
161: Edible Flowers
946: Diabetes, Plants for treating diabetes
952: Wholesale Selection
Allium cepa Rijnsburger 5 mid to late summer seeds will usually germinate in 30-365 days. Normally will only germinate with light so surface sow. Sow seeds about 1mm deep in 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".
Place in fridge for 4 weeks.