Onion Seeds F-1 Hybrid Red CosmoOverview Onion can be grown under wide range of climatic conditions, but it grows best under mild climate without extreme heat or cold, or excessive rainfall. Very low temperature at early stage results in bolting and sudden rise in temperature favour early maturity and small sized bulbs Variety Details Deep red round bulbs A very high yielding variety and resistant to bolting Excellent keeping quality Can be harvested at an earlier stage Average