Q.Ensuring Purple Sprouting Broccoli Sprouts In The Spring And Not In The Autumn
For the last 2 years 80% of my Early Purple Sprouting Broccoli (different types) have produced florets in the autumn. I want them to produce in the early spring.

Certified GKH Gardening Expert
For this, your temperatures will have to cooperate with a winter planting! Planting now should yield a midsummer crop, however. This plant requires cold temperatures for proper growth. Here is an article that will help:
https://www.gardeningknowhow.com/edible/vegetables/broccoli/how-to-grow-broccoli.htm
This collection of articles will offer quite a bit more information: