How are your Tomatoes growing? I am again growing Gourmet (mid size) sown in February in heated conservatory, eventually into GH with heat in April. They are now 4 foot tall with 3 trusses of flowers and small fruit developing.
I do not remember having the heating on in late May for years but this spring has been and still is disgusting. Here in Cheshire, today the temperature is 50 degrees (sorry old English) which considering we are 6 days from the first day of Summer - June 1st, it is pathetic. According to our annual gardening diary the plants and the garden as a whole, we are 3-4 weeks behind other years.