Plants that do well in a greenhouse during winter

Here are some plants that can be grown reasonably well in a greenhouse during winter. Supplemental lighting may be required to lengthen hrs. of light, for instance HID Lighting (high pressure sodium and metal halide) and fluorescent lights.

Excellent:   Basil, celery, dill, fennel, kale, leaf lettuce, 
marjoram, mustard greens, oregano, parsley, spinach, Swiss  
chard, turnip.

Good:   Cabbage, collards, garlic, green onions, leek.  Cherry
tomatoes and cucumbers (European type) are considered good,
but require warm temperatures.

Fair:   Broccoli, edible pod peas.  Eggplant, large tomatoes, 
and peppers are considered fair, but require warm           
temperatures.

Poor:   Beans, carrots, corn, radishes, turnips.  Melons and  
squash are considered poor because they are naturally       
pollinated by bees.  If hand pollinated, they can be listed 
as fair.