Dame's Rocket

Hesperis matronalis, commonly known as Dame's Rocket, is a biennial — occasionally short-lived perennial — flowering plant in the Brassicaceae family, originally from southeastern Europe and western Asia. It produces tall, upright stems covered with clusters of small violet, pink, or white flowers that release a powerful fragrance in the evening. Plants establish a rosette in their first year and flower in their second. It self-seeds freely and naturalises well in nutrient-rich, moist soils.

Growing

Sow seeds directly into the ground or into a cold frame, pressing them 1 cm deep into the soil. Space plants 20 cm apart within rows, with 30–40 cm between rows. Germination takes 10–90 days depending on soil temperature; sow once the soil reaches around 10 °C. Plants will not flower until their second year. Dame's Rocket self-seeds readily, so allow a few plants to set seed each cycle to maintain a self-renewing colony.

Care

Water regularly during dry spells, particularly in the first year while the rosette establishes. Apply a balanced fertiliser once in early growth to encourage strong stems. Stake plants in exposed positions to prevent lodging on tall second-year stems. Deadhead spent flowers to prolong blooming, or leave a proportion to set seed for self-seeding. No serious pest or disease issues under normal garden conditions.

Harvest

Cut stems when at least half the florets on the spike have opened but before the lower blooms drop. For the strongest fragrance, harvest in the evening when scent production peaks. Remove the entire stem at the base with clean shears. If growing for cut flowers, harvest into water immediately.

In the kitchen

The flowers and young leaves of Dame's Rocket are edible. Scatter fresh flowers over salads, desserts, or cold starters for colour and a mild, slightly peppery flavour. Young leaves can be used sparingly in salads, though they become more bitter as the plant matures. The flowers also work well as a garnish for drinks and cocktail platters.

Storing

Cut stems last 5–7 days in a cool room in fresh water; change water daily and re-cut stems at an angle. Flowers can be pressed and dried for decoration but lose fragrance quickly. Seeds harvested from dried pods store well in a cool, dry, dark container for up to 3 years.