Toothpick Weed

Ammi visnaga, commonly known as toothpick-plant or khella, is a graceful annual in the carrot family bearing large, domed white umbels atop finely cut, fern-like foliage. Tidier and more refined than Queen Anne's Lace, it produces dense, pure-white flower heads that are exceptionally versatile as cut flowers. It thrives in full sun with well-drained soil and is favoured by pollinators throughout its long blooming period. A robust hardy annual, it tolerates cool conditions and can self-seed freely.

Growing

Start seeds indoors 6 weeks before transplanting, pressing seeds onto the surface of moist compost — light aids germination, so cover with no more than 3 mm of fine vermiculite or compost. Maintain a soil temperature of at least 10 °C for germination, which takes 10–21 days. Alternatively, direct sow outdoors once soil reaches 10 °C and nights stay above 5 °C. Space plants 30 cm apart in full sun. Transplant carefully, disturbing roots as little as possible, as Ammi resents root disturbance.

Care

Water consistently during establishment, then reduce once plants are growing vigorously — Ammi is moderately drought-tolerant once established. Feed with a balanced liquid fertiliser every 2–3 weeks once stems begin to elongate. Taller plants may need light staking in exposed positions. Deadhead spent umbels to extend blooming, or allow some to go to seed for self-seeding next year.

Harvest

Harvest stems when the outermost flowers of the umbel have just opened, or use as greenery filler at the bud stage. Cut in the early morning when stems are fully hydrated. Use sharp scissors or a knife and cut to the desired length; cutting stems regularly encourages the plant to produce more laterals. Flowers are ready approximately 80 days from transplanting.

In the kitchen

The white umbels are used exclusively as cut flowers and floral bouquet filler rather than for eating. The lacy, fern-like foliage adds an airy texture to arrangements. Pair with bold blooms such as dahlias, sunflowers, or zinnias to create contrast. The flowers are also attractive to bees and beneficial insects in the garden.

Storing

Place freshly cut stems immediately in a bucket of cool water. Strip all foliage below the waterline to prevent bacterial build-up. Store in a cool, dark location at 4–8 °C; stems remain fresh for 7–10 days. Change water every 2 days and re-cut stem ends to maximise vase life.