BIG BOY Tomatoes

[martymod]

I am growing Big Boy Tomatoes in my Green House. I water them regularly and they are in grow bags. They are wilting.
They seem very tall. Do I need to put another grow bag under them to let the roots grow down or can you reccomend a food to give them that will stop the wilting?

[carlton23]

Tomato feed contains high potash which fed regularly will soon `perk em` up.

[Whoever]

I feed mine with Tomorite once a week once they start flowering. Grow bags rapidly run out of nutrients. I suspect the current high temperatures in your greenhouse are adding to the wilting problem. Ventilate as much as you possibly can at this time of year., and if you've got a hose, a light misting in the evenings will help increase the humidity.