May – Hesperis matronalis
This popular “Chelsea plant” has pink flowers on un-branching stems up to 1m tall and the delicious scent of the flowers is released most prominently during the evening so is a perfect plant for a Moon Garden.
As a biennial, it produces a rosette of foliage in its first year and flowers in its second year before setting seed and dying. It can easily be grown from seed from early summer.
As a relative of Rocket, the young leaves can be used, tossed into salads where it adds a pleasantly bitter taste.
Look out for the white flowered variety of this plant too. Hesperis matronalis ‘Alba’.