Growing your own tomatoes doesn't have to be difficult - in fact, these handy growpots make it simple. An ingenious yet simple design, the growbag pot has a serrated base that cuts neatly into the bag of compost, with three pots fitting the standard bag comfortably. The pots have an outer trough that holds four pints of water or feed which then gradually seeps into the compost. The plant is sited in the inner pot, which is then filled up with extra compost to encourage more vigorous root…