Posted: 17/07/2013 at 07:37
Hello Italophile. Monty's experiment was to plant tomatoes in different sized pots but to give the smaller pots extra feed. I agree with Marshmello that the smaller pots dry out quickly but I don't live in England and don't have to cope with the current heatwave, which must be making life difficult in the garden.
I've been feeding my small tomato pots every day and haven't fed the bigger pots at all so far. The small pots have wonderful green growth and a few healthy-looking green tomatoes. The bigger pots have far more fruit, though smaller, and flowers but the leaves don't look so healthy. All the plants are outside but against the house wall with the added protection of an overhanging roof. Perhaps it would be a different story if they were in a greenhouse. I can't find growbags here at all, so I couldn't try that experiment.
I may do the same as Marshmello next year and stick to the larger pots! We've had a few storms recently and the smaller pots can get blown away. Good luck with your plants, Marshmello.