I have started:
Broccoli
Cauliflower
Brussels Sprouts and onions
Celery

will start Cantaloupe, Tomatoes and Peppers next month
All these are being started in the basement. I will move them out to the Gh in March so I will only need the heater for a month or so. St.Louis area can have a mild month but also a cold month. I also have many flowers growing that are waiting to move to the GH.

UMMMMMM no I have not started anything yet. 2 Feet of snow and temps not about above 25 for sometime now and talk about -10 at the end of the week.

Cold weather crops I start in late March for late April planting and warm weather peppers and tomatoes get started about mid-April for June 1 planting.

Welcome to Zone 5a with a average frost free date of Memorial Day.

Zone 5 here also. I wish I could start now, but I usually wait til end March first of April. This year I will have a greenhouse, so I may get some in earlier.

Here is a link that might be useful: Check out my blog!