Ceanothus arboreus Trewithen Blue (Californian Lilac)
- Usually Flowers : May, June
Vigorous evergreen bearing glossy, dark green leaves and lightly fragrant, rich blue flowers in pyrimidal clusters. May to june. Ht.8mt.(25ft.). Grow in sun and moist, fertile, well-drained soil. Can tolerate lime. Could reach small tree-like proportions if left. Good for sheltered spots or coastal regions.
Polygonum baldschuanicum (Mile-a-minute plant)
Polygonum (syn. Fallopia)
- Usually Flowers : June, July, August, September
Very vigorous, deciduous woody-stemmed twining climber with rounded triangular leaves. Drooping panicles of tubular, pink-tinged white flowers produced from summer to early autumn. Ht.15mt.(50ft.). Grow in full sun or part shade and moist, well-drained soil. Very tough.