tomato feed is high in potash which encourages flowers so is fine for pots and tubs

tomatos are flowering plants need more potasium

You can! and I have! but only when I have run out of the proper plant food. But I wouldnt do it too often, but then others will say different and use it.

I would say different, Drc ;-). Tomato feed is the only liquid feed that I use, mainly on bulbs but sometimes on other plants. I use it half strength, mainly to reduce the nitrogen.

I'm trying the half strength feed of tomato feed this year in all the hanging baskets. I have never done so before..always used Miracle Gro.... so it'll be interesting to see the difference...if any! I've also fed all the spring bulbs every fortnight with half strength of same.

All plants that flower lots ie roses, petunia's as well as crops ie tomatoes need a high content of potash if you want lots of flowers or fruits. Tomatoe food is good as it has a higher potash content than other plant foods but Richard Jacksons flower power is even better having an even higher potash content than others on the market.
You should feed every two weeks in spring and early summer and every week from mid July onwards.
I have been using the flower power since April with AMAZING results, especially my roses, biggest and strongest they have ever been but they are wonderful on the hanging baskets.

Tomatorite is low in Nitrogen, I prefer a higher nitrogen content for my non vegetable plants.
I have found with Tomato feed that annuals race away and flower very well to start with but it is not sustained over the season due to low nitrogen and come mid July the annuals can become exhausted.

I use a sprinkle of 'slow release' as well just so the plants have access to trace elements etc and you should see my pots & baskets-- the're completly hidden by the flowers, W'lko's own is good value