— Campanula are hardy to around -20C and can be planted straight outside in the spring. They don’t require any frost protection over winter.
— Soak the roots in water for 3-6 hours prior to planting.
— Plant the roots with the crown or buds just below the soil surface or any leaves exposed. You can plant directly into a prepared space in borders or into patio containers. Alternatively, you can plant them into temporary pots to grow on and plant out later in the season.
— Campanula grow best in a free-draining soil. If growing in containers you can use a multipurpose compost.
— Choose a position which is in full sun or partial shade.
— Space the plants 20-25cm apart from each other.
— Water-in after planting and keep hydrated when in growth.
— Deadhead after flowering.
— Cut back stems down to 3cm above soil level in autumn.
— Read further general instructions about planting bare-root perennials