B and T World Seeds' reference number:
Common names for Allium cepa aggregatum:
Allium cepa aggregatum
is included in the following B and T World Seeds flowering plant categories:
83: Vegetable Seed List
160: Salad Vegetable Seed List
946: Diabetes, Plants for treating diabetes
Allium cepa aggregatum 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.