Intheswamp said:these are not made to remain in the greenhouse. I think of your greenhouse as a germination, seedling growing, new plant starting container...not to finish growing out a crop of tomatoes in.
You definitely want to have them outside in a large container or transplanted into the ground by the first of June to have time for tomatoes to make.
Do you have a patch of ground to plant in or will everything be grown on the patio in pots or buckets?
Are you close to the Cardiff area? That appears to be the warmest area. 
Oh
Wow so are your saying the Toms may not yeild any fruits because my glasshouse is to small ?
Oh dear
I really thought as long as I fed them and kept them at a reasonable height they'd be ok ?
Oh well one thing for sure is that my Niwaki pro snips will have plenty of use especially when these Toms starts trying to outgrow the glasshouse
I'm about 30 miles from Cardiff and the temperatures here are appalling we are very lucky to have maybe a few weeks of sun during the summer so to grow Toms in the ground really is a hit or miss scenario compared to growing in a greenhouse etc.
I think I'll divide All the new little seedlings out into small pots give them a further week or 2 in the glasshouse for them to develop themselves a little more then I'll probably give some of them away to my neighbours I'll just keep one or 2 as you said in pots on my patio because I have no ground at all to plant them into the ground.
To be honest Ed as you can see I have not thought this through as where all these little plants are going to go......I think I was so annoyed because I couldn't go to the Garden Centre (virus lockdown) to purchase just 6-8 Tomato plants I thought bugger it I'll just plant some seeds myself but now I'm gonna be overwhelmed with plants
Anyway no worries this is all new to me and I'm learning as I go along it's keeping my mind occupied during these dark uncertain worrying times but I will certainly learn from my mistakes ready for next year I'll keep you updated hopefully with some pics of big juicy red Tomatoes.
cheers
Tafy
