try misting the flowers with water to help fruit set. I only feed mine weekly.

My outdoor tomatoes are very slow, I suspect because of the lack of sunshine.

Same here, about 4 fruits set, very, very slow this year - plenty of foliage, little sign of fruit, though there are trusses of flowers. Just insufficient sun and warmth I think... by this time last year I'd been eating tomatoes off the plants for a week or so... my summer bedding's not doing so well either, looks okay, but slow, slow...and rainspotted on some susceptible plants.

Thank you for feed back, it seems everybody is in the same boat, as long as I am doing nothing wrong, but look forward to a home grown tomato, Thanks again.