My tomato plants sown at the beginning of march have been growing fast in the lovely warm spring weather we’ve been having. I’ve potted then on once already but they either need potting on again, or planting in the polytunnel. I’m erring towards planting them given the good weather. I was thinking of covering them with fleece and closing the tunnel if we get any cold nights. Is it too early given our unpredictable weather? I’m near Leicester. Andy