Here are 3 tips for establishing Lily of the Valley crowns.
1. If the crown looks dry, soak the roots for 30 minutes.
2. They don't like a cold, wet start so establish by planting crowns in 8 cm pots kept sheltered or in a cool greenhouse.
3. Allow 1 shoot per pot, leave some of the shoot above the compost and water in well.
They are ready to plant out when the roots fill the pot.