annual

Snow Crystals Sweet Alyssum

Lobularia maritima 'Snow Crystals'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Annual

Height

6 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

Water

Moderate

Humidity

Average

Lifespan

Annual (or tender perennial)

Native To

Mediterranean region

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Lobularia maritima, or Sweet Alyssum, is a low-growing, spreading plant, typically grown as an annual, known for its masses of tiny, fragrant flowers. 'Snow Crystals' is a tetraploid variety, which gives it larger flowers and more heat tolerance than the species.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides fragrant white blooms that brighten sunny garden beds and borders.

Serves as a low-maintenance groundcover that suppresses weeds and prevents soil erosion.

Attracts beneficial insects and pollinators, supporting local biodiversity.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings lightly to maintain moisture during root development.
Water regularly but avoid over-saturation to prevent root rot.
Fertilize monthly with a balanced liquid feed during active growth.
Pinch back to encourage bushy growth and remove dead flowers.
Mulch around plants to conserve moisture and suppress weeds.

Pro Tip

Sow seeds in early spring for vibrant blooms throughout summer.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist but not soggy 🌱
Prune dead or faded flowers to promote new growth
Apply balanced fertilizer monthly during growing season
Mulch to retain soil moisture and regulate temperature

Don't

Avoid overwatering to prevent root rot ❌
Do not fertilize in late fall to prevent weak new growth
Refrain from planting in overly shaded areas
Never let soil dry out completely during hot weather

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Plant
Propagate
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Fragrant border with white bloomsGroundcover for rocky slopesContainer plant for sunny patios

Companion Plants

Lavender Thyme Sedum Salvia Oregano

Multiply

Propagation Methods

Good to Know

Common Questions

Snow Crystals Sweet Alyssum questions

What zones can Snow Crystals Sweet Alyssum grow in?

Snow Crystals Sweet Alyssum is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Snow Crystals Sweet Alyssum deer resistant?

Yes — Snow Crystals Sweet Alyssum is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Snow Crystals Sweet Alyssum bloom?

Snow Crystals Sweet Alyssum typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Snow Crystals Sweet Alyssum need full sun?

Snow Crystals Sweet Alyssum does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.