1 Your age: POAG becomes much more common as we get older. It is uncommon below the age of 40 but this type of glaucoma affects one per cent of people aged over 40. About five per cent of people over the age of 65 have primary open angle glaucoma.  Your race: if you are of African origin you are more at risk of POAG.
Harvest. Cabbage will be ready for harvest in 80 to 180 days from seed depending on the variety or in 60 to 105 days from transplants. Cut cabbage when heads are firm and the base of the head is 4 to 10 inches across.
In my mid-South garden, summer comes too quickly to grow them in the spring garden. Set the plants out in mid-summer. It will take about 3 months before the sprouts appear. They are ready for harvest when they are firm and green. 90 days to maturity. Cabbage â Plant seedlings 6 to 8 weeks before the first frost.