[andy dewar]

Iv got my first flowers on the tomato plants in the greenhouse  should i start feeding now thanks Andy

[DD.]

Feed them after the first tomatoes "set", that's once the flower has died off and dropped off.

[solway cropper]

It really depends what you're growing them in. I was told by a professional grower that if you get the potting mix right they shouldn't need any extra feeding.

That said, I always use a high potash liquid feed once the first fruit have set. Perhaps it's time for an experiment to see if they really need it.

[andy dewar]

Im growing in normal potting compost to which iv added some bonemeal for a change to see how that helps there in marshalls growsacks in greenhouse