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.
Flowering cabbage plants can be started from seed. Start the seeds indoors in December to have the plants ready to transplant outdoors in February or March. Transplants are also available at most garden center. Plant 12 to 18 inches apart in full sun.