Description

This showy perennial has lanceolate, light green leaves. The erect stems produce lavender-blue, tubular flowers crowded together on the upper part. The species name is based on the fact that it was a supposed cure for syphilis.

Repotting or planting

9cm marginal plants require potting into a larger mesh basket. Place in a pond no deeper than 1/3 maximum recommended planting depth to allow the plants to establish. 1ltr marginal plants do not require repotting, place in the pond no deeper than 1/2 maximum recommended planting depth to allow the plants to establish. 3ltr and 5ltr plants do not require repotting, as they are larger more established plants they can be placed up to the maximum recommended depth. There is no need to remove the mesh basket.

Care instructions

Little maintenance is required. Trim to tidy but leave foliage to die back naturally to encourage winter bud formation

Colour

Blue

Growth rate

Slow

Flowers

Aug, Sept

Sun/shade

Full sun to Part shade

Season

Spring, Summer

Measurements in centimetres

Height Min -Max

60-90

Depth Min-Max

0-5