Ken Crowther and Geoff Hodge answer your gardening questions and queries, including when is the best time to prune pyracantha and can you propagate old pear trees. If you have a gardening question email

Social media is hugely important for gardeners helping them get the most from their gardens. Whether it’s Facebook, YouTube, Pinterest, Twitter or any of the other social networks gardeners can feel they are part of a community by sharing pictures and asking advice. Ken Crowther spoke to Michael Perry about how you can use social media to your advantage.