Plant library · Perennial Flowers
Limonium latifolium
Sea lavender forms a compact, roughly 2-foot-tall and 2-foot-wide perennial base topped by cloud-like sprays of tiny lavender-blue flowers. Its airy flowering habit gives it more visual reach than its leafy footprint suggests, so use it where the blooms can rise through or just behind lower plants. The flowers are useful both fresh and dried, extending its role beyond the bed during its mid-summer to early-fall bloom period.
Place sea lavender in the sunny front or middle of a border, gravel garden, or dry-looking planting where its open flower sprays can soften denser mounds nearby. It also suits exposed beds and coastal-style layouts, especially where well-drained ground is already part of the design. Keep it off narrow path edges: set the crown back far enough that flower stems do not lean into circulation space or obscure low edging plants.[1]
Plant on 18-inch centers for a connected planting that fills in without treating each plant as a separate 2-foot-wide circle. In a mixed border, allow the mature 2-foot spread to overlap lightly with neighboring foliage while leaving a reachable gap from paths, walls, and larger perennials. Repeat it in small groups rather than a single tight row when you want the flower sprays to read as a soft, airy mass.
Give sea lavender full sun and low-water conditions, with poor, well-drained soil rather than a rich or moisture-holding pocket. Sandy, gravelly, stony, and other sharply drained sites fit its needs well. Avoid placing it at the low end of a bed, beside downspouts, or where irrigation from thirstier neighbors keeps the root zone consistently wet.[1]
The flowering display runs from mid summer into early fall, making sea lavender useful for carrying a sunny border beyond the first flush of summer bloom. Reserve visual space above its foliage for the branched sprays rather than crowding it with tall, solid-leaved plants. Cut stems for arrangements while the display is active, or leave the plant in place as part of the late-season composition.
Sea lavender is clump-forming, not a plant for covering broad bare ground quickly. Its fine flowering stems can disappear when backed by similarly airy plants, so give it a darker, denser foliage backdrop or repeat it in a drift for clearer definition. Cut back after flowering when a tidier border is wanted.[1]
Editorial content updated 2026-07-20.