Green Alkanet: Looking like a larger than life Forget-me-not, we have to take care with this plant, which we inherited in the garden. The gorgeous blue flower is nectar-rich for Bees and Hoverflies. Preferring alkaline soils and damp, shady areas but capable of growing in most places, it has a very deep tap-root which is hard to dig out, and it spreads easily by seed, so can be invasive. The leaves can be composted but remove the seed-heads or it will turn up all over the place. Conditions: Sun and strong winds Temperature: Max 16- Min 12C.