I work nights, and temperatures have been dropping a lot in the early hours - 23.5⁰ at 5pm, by about midnight it was 10⁰. We'd normally have warmer nights by now wouldn't we?
To those of you who are wondering, I am based in SE Wales. Recent day time temps have been pretty high, but night time temps really drop to almost single figures. Carrots aren't germinating either!
It wasn't a great idea to throw that much B F & B into the hole it went into, it could be the culprit, it's certainly not temps. It's probably too late, but maybe pulling them, cleaning them off and replanting may save them. If all you have in the bed are toms then you're wasting your time digging it all out and adding compost to the whole thing. Leave the soil alone and either adopt no-dig, or just dig a pocket where the toms go and fill with fresh compost.
I agree with @Nollie - temps can just rocket in greenhouses, even when it isn't that hot, so it can be too much for a newly transplanted plant -especially if there's a big swing between night and daytime temps. They can just struggle a wee bit until they settle in. A bigger, sturdier plant will cope with a few nights in single figures no problem, but once temps get over mid to high twenties, it's too much for toms ,so just make sure the ventilation is adequate too. People always assume they're fine regardless of the temp at the higher end, but they can stall with that as easily as they can with the other end of the scale. I also agree that the BF&B won't have been any great problem unless you were chucking loads of it in , which I doubt if you've been growing regularly If you can tie it gently to the support, rather than trying to wind the support round it [which I'm assuming is how you're growing them] that will help until it gets it's roots down.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
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It's probably too late, but maybe pulling them, cleaning them off and replanting may save them.
If all you have in the bed are toms then you're wasting your time digging it all out and adding compost to the whole thing. Leave the soil alone and either adopt no-dig, or just dig a pocket where the toms go and fill with fresh compost.
I also agree that the BF&B won't have been any great problem unless you were chucking loads of it in , which I doubt if you've been growing regularly
If you can tie it gently to the support, rather than trying to wind the support round it [which I'm assuming is how you're growing them] that will help until it gets it's roots down.
I live in west central Scotland - not where that photo is...