Hi guys, would you like help me? How can I grow a green meat radishes in Wisconsin?
New in this country
Would you happen to have an actual name of the species you're looking for advice on?
Replying from N. Texas where growing conditions are a lot different than where you are but here at least, nearly all radish varieties are grown in very late winter to mid spring and usually take no more than 21 to 40 days from planting to harvest. This assumes that one isn't planting in a greenhouse, covered row, or other semi protected situation.
Welcome to the US!