At its best:
Jun, Jul, Aug
Add crocks to the base of the container to aid drainage, then fill two-thirds with compost.
Position the plants 15cm apart and firm the compost around them, removing air pockets. Place the willow support carefully over the climbers. Push the legs firmly into the compost, ensuring the structure is even by checking the support's bands are horizontal. Water the plants thoroughly.
As the plants begin to flower, feed them weekly with a potash-rich feed such as tomato feed, to boost flowering potential.