Seedlings should be protected from frost during the first winter.
Some forms cause damping off of seedlings - e.g.
The seedlings should then be 6 ins.
When the seedlings make their appearance another field is prepared for transplanting.
After the seedlings appear, thinning is completed in usually three successive hoeings, the plants being watered after thinning, and subsequently at intervals of from twelve to fifteen days, until about the end of August when picking commences.