Angelica gigas is a large tall growing architectural plant suitable for a large border or for naturalising in a woodland context. They also grow well at Burncoose beside a stream leading out from the pond. They require deep loamy soil and are perfectly happy in shade or partial shade in a moist or damp environment.
A. gigas is a clump forming plant which is fairly short lived and can even be a biennial. Its leaves are 12-18in long and are made up of diamond shaped ovate leaflets. The flower spikes are reddish purple and can be 4-6ft tall when the flowers are full out. These too are dark reddish-purple in late summer and early autumn creating a spectacular display.
These are not clump forming perennials that can readily be propagated by lifting and dividing the dormant clumps. A. gigas dislikes any disturbance. Seed should therefore be gathered and sown in a cold frame as soon as it is ripe and the seedlings need to be grown on and transplanted when they are still relatively small.