Good info. ThanksGillyBee wrote: ↑Mon Mar 20, 2023 7:47 am Have you done anything to protect your tomatoes? I feel it is still way too early for them to survive outdoors let alone do well. Temperatures here in the south have only just reached double figures and we still have a good month or 6 weeks to go before mine will go outside during which time we may get another cold snap. The ones for the unheated greenhouse will not go in there before mid-April
My rule of thumb for tomatoes is as follows:
16C is the minimum to get any gernimation - so sow them indoors.
12C is the minimum temperature for flowers to set fruit but they really need 15C or more. Keep warm if you want fruit.
5-6C Cold tolerant varieties will survive but not grow. If you try to keep seedlings this cold they will proably die. Fully grown plants may ripen existing fruit but will not set anything new and the diseases take hold very easily.
I protected mine by holding back on sowing them and I keep reading of folks who jumped the gun, like I usually do. if they survive to about 4 inches they will go to the clear plastic cube that Mr JJ is under orders to get built . That might end up there forevér home. Unless they outgrow it.