Herself’s Houston Garden

Asparagus - Jan 15->Feb 15th

Beans ( lima and snap ) - March 1->April 7th and Sept 1->Sept 21

Beets - Feb 1->28 & Sept 21->Oct 15th

Broccoli - Jan 21->Feb21 & Sept 15th ->Oct 15th

Cabbage - Jan 21->Feb 21 & Sept 15th ->Oct 15th

Cantalope - March 21->Jun 30th

Cauliflower - Jan 21->Feb 21 & Sept 15->Oct 15th

Carrots- Oct 15->Nov 15th

Collards - Jan 21->Feb 15th & Sept 15->Nov 1

Corn - Mar 1->March 31

Cucumber - Mar 21->Apr 30

Eggplant - March 21->Jul 7th

Kohlrabi - Jan 21->Feb 28th & Sept 21->Oct 31

Lettuce - Jan 21->Feb 28th & Oct 7->Nov 30

Muskmelon or Watermelon - March 21->Jun 30th

Okra - Apr 1st->Jul 31st

Onions - Jan 15->Feb 15

Peas, snap - Sept 21->Oct 15th

Peppers - March 15->April 30th

Potatoes - Feb 1->Feb 15th

Pumpkin - Mar 15->Jul 15

Radish -> Feb 1 -> Mar 7th & Sept 1->Nov 15th

Southern peas - Apr 1->Aug 21

Spinach - Oct 1->Nov 15th

Squash - Mar 15th ->Apr 30

Sweet potatoes - Apr 1->Jul 15th

Swiss Chard - Jan 21->Feb 15 & Sept 21->Nov 7

Tomatoes - Mar 1->Mar 31

Turnip - Feb 1 ->Feb 28th

See also:
Houston Vegetable Garden Blog
Urban Harvest, Success with vegetables requires timing