Alyssum plants are a tender and delicate annual. They are small and easy to grow. Alyssum are usually used as a border plant and also look really good growing in the nooks and crannies of a rock garden. They are good candidates for container gardens, too. Excellent for Rock Gardens.

Seed Starting: Alyssum are grown from seed. Alyssum seeds can be directly seeded into your flower garden or seeded indoors for transplanting later. If planting outdoors, sow Alyssum seeds after the soil has begun to warm in the spring. Alyssum do not like frost, so if started indoors, transplant them outdoors after the last frost date.

If planting in a basket, put 6-8 plants per 10" basket for full effect. If planting in the flower garden, space plants eight to ten inches apart.

Sow seeds early in the season and cover lightly with soil. Water thoroughly once. Alyssum will begin to produce a continuous profusion of sweet smelling flowers by mid-summer.

Note: Alyssum are fairly easy to grow and tend to. They like full to partial sun. They will do well in average soils and tolerate dry soil conditions. Water them during dry periods, once or twice per week. Soil should drain well. Add a general purpose fertilizer once a month. Once they are established, they will grow well until the first frost. Alyssum are tender annuals and highly susceptible to frost.

Alyssum flowers form a striking border massed together as bedding plants. Mat-forming sweet alyssum stays short and complements taller border plants well: planted in front of taller plants, sweet alyssum won't obscure them. They're also popular in containers; as short plants, you can install them along the rim (they'll hang over slightly).
Their short stature also makes them useful as temporary rock garden plants or groundcovers. White sweet alyssum flowers are used with red salvia and blue ageratum in the U.S. in patriotic landscaping themes for July 4th plantings and for decorating cemetery monuments on Memorial Day. Use them with other white flowers in moon gardens.