Sweet Alyssum Purple-blue (Lobularia maritima) is an annual plant with trailing stems that grows to about 10 to 15 cm tall. It forms low, compact mounds that quickly cover the ground with a dense layer of small purple-blue flowers. The blooms appear in tight, fragrant clusters that are gladly visited by bees and butterflies. This variety is well suited to flower beds, edging, walls, rock gardens, and container growing. It flowers for a long time and very generously, making it a dependable feature in summer planting, and it is easy to grow even where conditions are not perfect.
Sow the seeds shallowly, at a depth of about 0.3 cm. This supports quick germination and helps produce strong, even seedlings. Sowing too deep can delay or weaken emergence, so it is best to keep to the recommended depth.
The best time to sow outdoors is March or April, when the soil begins to warm and longer days support fast growth. You can sow directly into the final position, as sweet alyssum flowers most beautifully when it grows from the start in the same spot.
Keep a spacing of about 10 x 15 cm. This gives plants room to branch and form low, flowering cushions that neatly cover the surface of a bed or container. Good spacing supports healthy growth and abundant flowering.
Sweet alyssum starts flowering in June and continues until October. It can brighten the garden throughout the summer, creating a purple-blue carpet that attracts pollinators and adds charm to many settings, from garden borders to balcony planters.
This undemanding plant grows best in free-draining, light soil with moderate moisture. It performs well in both fertile and less fertile ground. It prefers sunny positions, where it flowers most heavily, but it also copes with light partial shade. Its cushion-like habit makes it ideal for filling gaps, and it blends naturally with other ornamental plants. It looks just as effective in containers and is a strong choice for decorating balconies, terraces, and windowsills. Trimming spent flower clusters encourages further flowering and helps the plant stay fresh-looking for longer.
When you choose seeds from GardenSeedsMarket, you can rely on quality and freshness. Each seed batch is carefully checked to support strong germination and healthy growth. Orders are processed quickly and safely so the seeds arrive in excellent condition. We treat every customer individually and are happy to advise on choosing varieties and on how to get the best growing results. Many gardeners already trust our quality, and you can enjoy the same satisfaction from your own flowering displays.
The pack contains 0,5 g of seeds. The packaging includes growing guidance and information on the sow-by date.
My account
Store
Customer information
Information
© -2026 Gardenseedsmarket.