Lobularia maritima white sweet alyssum flowers, animated real photograph adapted from Franco Folini, CC BY-SA 2.0: https://commons.wikimedia.org/wiki/File:Sweet_alyssum_(Lobularia_maritima)_(6995044097).jpg ; license https://creativecommons.org/licenses/by-sa/2.0/

Lobularia maritima sweet alyssum low-growing white flowers in a garden border

Sweet alyssum flower clusters, low mounds and pathway edge illustration

Sweet alyssum sowing, sprouting and blooming illustrated guide

Lobularia maritima growing conditions illustrated guide

Lobularia maritima Sweet Alyssum Seeds

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About the Variety

Lobularia maritima, or sweet alyssum, forms a low, spreading cushion of tiny white flowers above fine green foliage. Its gentle honey-like fragrance and long flowering season make it a natural choice for borders, pathways and containers. The small blooms attract visiting pollinating insects.

Key Features

Clusters of small, fragrant white flowers
Low, spreading habit for borders and containers
Can flower from spring into autumn in suitable weather
Welcomes pollinating insects

Plant Details

Botanical Name	Lobularia maritima
Common Name	Sweet alyssum
Life Cycle	Usually grown as an annual; may be a short-lived perennial in mild climates
Light Requirement	Full sun to partial shade
Bloom Season	Spring to fall in cool or mild weather; flowering may slow in summer heat
Growth Habit	Compact, mat-forming and spreading
Plant Height	Typically low-growing; up to about 10 cm (4 in) according to RHS
Spread	Approximately 10–50 cm (4–20 in), depending on conditions
Flower Color	White
Fragrance	Sweet, honey-like
Soil	Light, moderately fertile, well-drained soil
Pack Option	1 Pack
Seed Count / Coverage	Check the supplied packet for this seed lot

Planting Information

Planting Season	Sow in spring according to local frost dates; late-summer sowing may suit mild climates
Sowing Method	Sow into a prepared bed or start indoors, following the supplied seed packet
Planting Depth	Follow the supplied packet
Germination / Seed Preparation	Follow the packet instructions for this seed lot
Water Needs	Keep seedbed evenly moist during germination; avoid waterlogged soil
Plant Spacing	Follow the packet and allow room for low, spreading growth
Hardiness	Often grown as an annual; overwintering depends on local conditions

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FAQs

How do you ship?

Seeds ship after a handling period of 3-5 business days, with most orders arriving within 10-15 business days from there.
Once your order leaves our warehouse, you'll receive a shipping confirmation email with tracking — so you know exactly where things stand.

Are your products GMO?

All of our seedsare non-GMO. We've made that commitment as our Safe Seed Pledge.

Are your seeds treated?

Most of our seeds are untreated. Some varieties are coated with a fungicidal treatment to support germination and early establishment, particularly in challenging growing conditions. If a variety has been treated, it will be clearly noted on the product page and packaging.

How Should I Store Unused Seeds?

Our recommendation is to buy for the season you're planting. But if you have seed left over, proper storage keeps it viable longer than most people expect.

To store unused seeds:

1. Seal them in an airtight container or plastic bag to protect against moisture and insects
2. Keep them somewhere cool, dark, and dry — away from sunlight and humidity
3. Skip the refrigerator; fluctuating moisture is harder on seed than temperature

Stored well, most seeds hold through the following growing season with excellent results. Our seeds typically lose less than 5% of their viability per year under ideal conditions.

Not sure if older seed is still good? A quick germination test will tell you:

Moisten a paper towel, place 10 seeds on one half, fold it over, and seal it in a plastic bag or airtight container. Keep it in a warm location appropriate for the variety, and check periodically over the seed's normal germination period. Count how many sprout — 8 of 10 means roughly 80% viability. If the rate is low, you can often compensate by sowing more thickly. Just keep in mind this measures viability under ideal conditions, so actual garden performance can vary with soil, moisture, and weather.