We had the same type of weather. I finally got my last cauliflower head a few weeks ago. The brussel sprout plant is just getting taller with no heads. You can start some small plants in between them, and the, if they still don't have heads, cut them off to make room for the other plants. At that point, trying to pull out the roots would disturb your new veggies.

Here is a link that might be useful: cauliflower

I think it is still too early for heads in your zone, especially for cauliflower. I'm south of you and my broccoli is just now starting to form small heads and I wouldn't expect any on my cauliflower for another couple of weeks at least.

Assuming they have been properly fed and the weather stabilizes, patience is called for. :)

Dave

Thanks. I just did some work in the garden and looked at them closely. The cauliflower do have some tiny heads starting, about the size of a nickle to a quarter, one broccoli has one dime sized. I've seen one cabbage moth, hopefully the DE I put on them will help keep the Caterpillars from coming to destroy them and I have some Safer insecticide if I start seeing them. They ate them all up last time I tried. I'm not able to find BT anywhere around here and I really don't like using chemicals if I can help it. So, thanks for the ideas and I'll be patient!

BT isn't a chemical. It is a bacteria and is approved for organic gardening. It is sold as a powder called Dipel and as a liquid called Thuricide.

Dave

Oh, I know it isn't a chemical, which is why I want to use it. I just haven't been able to find it yet. Tried Ace and Lowes. I'll try the local nurseries and see if they carry it.

You can find BT online.

Walmart carries it around here. So does Home Depot and Tractor Supply.

Dave

My Lowe's has it and the brand is Garden Safe. I bought a bottle last week. I am zone 6 and I don't have broccoli either. Mine is growing under row cover because I had so many chewing insects early in the season and I didn't have anything to apply at the time.