Posted: 13/04/2014 at 20:47
Hi Christopher! I grew Black Russian here in Switzerland last year in my raised bed and was very pleased with them, grew well and were very tasty. They are indeterminate, i.e. get quite tall so need staking and breaking out the side shoots. Do NOT feed them until the first trusses of tomatoes appear and use tomato fertilizer, I think it's called Tomorite in the UK. Water sparingly, too wet is not good.
I'm growing 4 different sorts this year just for the hell of it. They are now in 4" pots and about 6" tall and I have had them outside since about two weeks. I move them out into the sun during the day and under cover of the pergola roof at night. I will not plant mine out until about mid-May, although I have a home-made tomato house.