How to grow clematis

■ Any sunny or semi-shady location works.

■ Well-drained soil is a must. They’ll tolerate light chalk to sandy acidic types, but not heavy clay or sites prone to waterlogged soil in winter. If you have this sort of soil, mixing grit for drainage is essential.

■ For best results, plant in autumn for flowering the following summer.

■ Smaller varieties can be grown in containers, with support – use John Innes No. 3 compost with added grit.

■ Use a high-potash feed, such as a rose fertiliser, throughout the growing season to encourage better flowering.

■ When you’re happy with the height, pinch out new growing tips to encourage even more flowering stems.