It may sound surprising but you can actually sow your tomatoes in your polytunnel in January. It is recommended that you start them off with a heated propagator which can be found online. The propagator allows you to set the perfect temperature for your tomatoes. This link gives some handy tips when sowing your tomatoes.http://www.allotment-garden.org/vegetable/how-to-grow-your-own-tomatoes/sowing-starting-offtomatoes/
