Green tomatoes not ripening? Monty Don knows exactly what you should do

Green unripe tomatoes on vine & ripe red tomatoes freshly picked in bowl.

We've had a pretty wet and miserable summer so far, which can only mean one thing: our stubbornly green tomatoes just aren't ripening. 

Thankfully, though, this doesn't mean we have to scrap all of our tomato-based garden ideas. Because, as always, the one and only Monty Don has come through to offer up his tips and advice on how to get the ripe red fruits of your dreams (and no, it doesn't involve tapping your tomato plant).