Sowing & Growing

Ammi visnaga, also known as toothpick weed or bisnaga, is a hardy and easy-to-grow annual plant that produces delicate white flowers in umbels. It is native to the Mediterranean region but can be grown in many other regions, including the UK. If you’re interested in growing ammi visnaga from seed, here are some steps to follow:

The best time to sow ammi visnaga seeds in the UK is in the spring, after the last frost date. This is usually around mid-April, although it can vary depending on your location. Before sowing, prepare the soil by removing any weeds, rocks, or debris, and loosen the soil to a depth of at least 6 inches. Ammi visnaga prefers well-drained soil and full sun to partial shade.

To sow the seeds, create shallow furrows in the soil about 1/8 inch deep and 12 to 18 inches apart. Space the seeds about 1 inch apart within the furrows and cover them lightly with soil. Water the seeds gently but thoroughly, making sure the soil is moist but not saturated. Keep the soil evenly moist during the germination period, which can take up to 21 days.

Once the seedlings emerge, thin them out to a spacing of 12 to 18 inches apart. This will allow each plant enough space to grow and develop a strong root system. Ammi visnaga plants can grow up to 4 feet tall and 2 feet wide, so make sure to give them enough room to spread out.

Ammi visnaga plants typically bloom from mid-summer to early fall. The flowers are small and white and are arranged in umbels, which can make for a striking display. They are also attractive to bees and other pollinators.

The ideal temperature range for ammi visnaga is between 60 and 75 degrees Fahrenheit during the day and 50 to 60 degrees Fahrenheit at night. The plant can tolerate heat and drought but may not perform well in very hot temperatures. If the weather gets too hot, you may need to provide some shade or extra water to keep the plants healthy.

In conclusion, growing ammi visnaga from seed is a relatively straightforward process that requires little maintenance. By following the steps outlined above, you can enjoy the delicate white flowers of this beautiful plant in your garden or landscape from mid-summer to early fall.