Sweet Chestnut (Castanea sativa)
It is hardy to zone 5. It is in flower in July, and the seeds ripen in October. The flowers are pollinated by Bees. It is noted for attracting wildlife. Plants are fairly self-sterile.
The seed is best eaten roasted, as the sweetness comes out in the flavour.
Prefers a good well-drained slightly acid loam in a sunny position but it also succeeds in dry soils. Once established, it is very drought tolerant.
Sweet chestnuts require a warm dry summer in order to ripen their fruit properly. Flowers are produced on wood of the current year's growth and they are very attractive to bees.