My spinach has been doing the same thing. I've come to the conclusion the seeds we usually have in the pacific NW are for cooler, shorter growing seasons than we now have. I am hoping to get a batch of spinach off my crop this next week.....then, I predict it will bolt too, since it is sooooo hot here.
I've planted my spinach in pots, where I can have them under the eaves for shade, and move them too if necessary. Trying to keep them out of the sun.
My radishes have been doing the same thing. I've now started planting just a few of the seeds every day or so............then I end up with a couple when I want to do a salad. But, I'm still pulling out the ones that quickly go to seed.
Contrary1
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