How to Grow Baby's Breath From Seed

Sow annual baby's breath directly outdoors after your last spring frost, once the soil has warmed. It grows so quickly that there is little benefit to starting it indoors, and it dislikes root disturbance, so direct sowing is best. Because each sowing blooms for only a few weeks, the secret to a long season is succession: scatter a fresh patch every two to three weeks from spring through midsummer for continuous airy white flowers.

Choose a spot in full sun with light, well-drained soil; baby's breath actually prefers slightly alkaline ground, so work in a little garden lime if your soil is acidic. Scatter the tiny seeds thinly over the surface and press them in or barely cover them, no more than about an eighth of an inch, since they need some light to germinate. Keep the surface lightly moist and expect sprouts in one to two weeks. Once seedlings are up, thin them to about 8 to 12 inches apart so the branching stems form that signature misty cloud.

Baby's breath is refreshingly hands-off once it is up. Water moderately and let the soil dry a bit between waterings, since it hates wet feet far more than it minds a little drought. It needs no rich feeding; lean soil actually gives sturdier, more graceful growth. Taller plantings may lean, so a few twiggy branches or a light grid of support keeps the airy stems upright. Deadhead or keep cutting to tidy the plant, and simply sow again for fresh blooms rather than expecting a long rebloom from a single annual planting.

Baby's breath is born to share a cutting garden. These sun-loving heirlooms bloom alongside it and fill out a bouquet beautifully:

For the vase, cut baby's breath when most of the tiny flowers on a stem have opened, working in the cool of the morning for the longest vase life. It is one of the finest flowers for drying: gather loose bundles, secure the stems, and hang them upside down in a warm, dark, airy spot for a week or two until crisp. Dried this way, the delicate sprays hold their shape and pale color for months in wreaths and arrangements. To save seed, let a few stems finish and dry on the plant, then collect the ripe seed.

Baby's breath is the classic filler flower, softening and unifying bouquets with its cloud of tiny white blooms, but it is lovely on its own too, drifting through borders and cottage plantings like a fine mist. It is a top choice for both fresh and dried arrangements, wedding work, and everlasting wreaths, and its small flowers offer nectar to bees and other small pollinators. Easy, airy, and endlessly useful, it earns its place in any cutting garden.

• Poor germination: seeds sown too deep. Barely cover them since they need light, and keep the surface lightly moist until they sprout.
• Leggy, flopping plants: too much shade or overly rich soil. Grow in full sun and lean soil, and give tall plantings a little twiggy support.
• Root rot and yellowing: heavy or waterlogged soil. Baby's breath needs sharp drainage, so improve the soil and water only when the top layer dries.
• Short bloom window: normal for an annual. Sow successionally every two to three weeks so a fresh patch is always coming into flower.
• Weak growth in acidic soil: this flower prefers sweet, slightly alkaline ground. Add a little garden lime to raise the pH if needed.