Brassica oleracea (Tronchuda Group)

In its uncultivated form, this variety of Brassica is known as wild cabbage.  In its native habitat, it is hardy to zone 7. 

The genus name Brassica is Latin for cabbage. 

The Tronchuda Group had been cultivated for its edible stems and leaves, however, many additional forms have been developed that includes brussels sprouts, broccoli, kale, cauliflower, collards, and cabbage.  With such a wide variety of common vegetables in this group, the descriptions are varied.   Generally speaking, they are stout herbaceous plants, with smooth, glaucous, rounded leaves.  Depending on the plant, they can be annuals, biennial and even sometimes perennial. 

Not particularly showy, they are grown for their edible leaves rather than ornamental uses.  This plant is typically grown in more temperate locations, they are a favorite of spring and fall vegetable gardens in North Carolina when the temperatures are somewhat milder.

Insects, Diseases, and Other Plant Problems:  Insects issued include aphids, cabbage web worm, cabbage white butterfly and cabbage loopers.

The Clemson Cooperative Extension Home and Garden Information Center has a factsheet on common Cole crop diseases and other plant problems.

VIDEO Created by Elisabeth Meyer for "Edibles, Bulbs, and Houseplants" a plant identification course offered in partnership with Longwood Gardens.   

More information on Brassica oleracea.