Cruciferous Veggies Not Producing

Question

I have broccoli, cauliflower, and cabbage planted from transplant for almost 6 weeks. There are lots of leaves but no actual heads forming. How long does it take for heads to form? I have fertilized and the soil is very rich. Water is not an issue. We have had cool cloudy weather with a few days of over 75 degrees.

Answer 1

The following articles should be of some help to you:
https://www.gardeningknowhow.com/edible/vegetables/broccoli/bolting-broccoli-growing-broccoli-in-hot-weather.htm
https://www.gardeningknowhow.com/edible/vegetables/broccoli/how-to-grow-broccoli.htm
https://www.gardeningknowhow.com/edible/vegetables/cauliflower/growing-cauliflower.htm
https://www.gardeningknowhow.com/edible/vegetables/cabbage/growing-cabbage.htm