every year my radishes go to tops and no radish
When do I plant them to get radishes? This has happened every year for 7 years.
A few things to consider: too much nitrogen, not enough light, too much heat (check seed package), not thinning the sprouts. Here are some tips on radish growing: https://www.gardeningknowhow.com/edible/vegetables/radish/tips-how-plant-radish.htm