• Skip to primary navigation
  • Skip to main content
  • Texas A&M Forest Service
  • Texas A&M Veterinary Medical Diagnostics Laboratory
  • Texas A&M AgriLife Extension Service
  • Texas A&M AgriLife Research
  • Texas A&M College of Agrculture and Life Sciences
Cypress Basin Master Gardeners Association
Cypress Basin Master Gardeners AssociationCBMGA is an educational and volunteer program offered through the A&M AgriLife Extension of the Texas A&M University System.

Other Horticultural Events

  • Menu
  • Welcome to CBMGA.ORG-Your Plant Information Place
  • About Us
    • Our Mission
    • Our Location
    • CBMGA Master Gardens Virtual Tour
    • CBMGA Photo Archive
    • Who Are Master Gardeners
    • How Can I Become a Master Gardener?
    • Volunteer Commitment
    • History of TMG
    • Texas Master Gardeners Program
  • Calendar
    • January 2026
    • February 2026
    • March 2026
    • April 2026
    • May 2026
    • June 2026
    • July 2026
    • August 2026
    • September 2026
    • October 2026
    • November 2026
    • December 2026
  • Resources
    • Texas A&M Aggie Horticulture
    • Texas Master Gardener Association
    • Titus County Extension
    • Earth-Kind® Gardening
    • Gardening by the Month
    • Texas Plant Disease Diagnostic Lab
    • Soil Testing
    • Knowledge Pages
      • Vegetables and Gardening
        • Vegetables
        • Herbs
        • No Dig Vegetable Gardens
        • Food Preservation
      • Insects and Butterflies
        • Insects
        • Butterflies
        • Fire Ants
      • Water Literacy
        • EarthKind Landscaping
        • Rain Water Harvesting
        • ARWCA-RainWater Capture
        • Tx Water Dev Brd
    • Our Newsletter (currently inactive as of 2024)
    • Our Youtube
  • Ask a ???
  • Members Only
  • MG Training
  • Plant Sale

Sweet Allysum/Lobularia maritima

Sweet Allysum

Common Name:
Type:
Family:
Native Range:
Zone:
Height:
Spread:
Bloom Time:
Bloom Description:
Sun:
Water:
Maintenance:
Suggested Use:
Flower:
Tolerate:
sweet alyssum
Herbaceous perennial
Brassicaceae
Southern Europe
5 to 9
0.25 to 0.75 feet
0.50 to 1.00 feet
April to June
White
Full sun to part shade
Dry to medium
Medium
Annual
Showy, Fragrant
Drought, Dry Soil
Typically grown as an annual. Easily grown from seed in average, medium moisture, well-drained soils in full sun to part shade. Best with some part afternoon shade. Tolerates semi-dry soils. Sow seed directly in the ground several weeks before the last frost date. For earlier bloom, start seed indoors 5-6 weeks before last frost date. Nurseries sell starter plants in cell/six packs. Set seedlings or purchased plants out just before last frost date. Shear plantings after first bloom to encourage a second flush of bloom. Blooms spring to frost in cool summer climates. Flowering and plants usually decline significantly in the dog days of a typical St. Louis summer at which point they should be cut back by one half. Plants usually revive as cooler fall temperatures arrive. Seed may also be sown in August for fall bloom.

Sweet alyssum is one of the easiest annuals to grow. It is a mat-forming plant that produces spreading mounds of well-branched stems clad with linear, lance-shaped, gray-green leaves (to 1” long). Plants typically grow 3-9” tall to 12” wide. Dense clusters of sweetly fragrant, tiny, white 4-petaled flowers cover the foliage mounds from spring to early summer. Flowering is often so profuse as to totally hide the foliage. Cultivars expand the flower color choice to include shades of pink, rose, lavender, purple and apricot. Synonymous with Alyssum maritimum.

No serious insect or disease problems. Damping off is an occasional problem with seedlings.

Mass in border fronts or rock gardens. Under planting. Edging and bedding. Mixed containers.

Information on this page is generally from Missouri Botanical Gardens,
Dave’s Garden, All things Plants or Texas Superstar
Information on this page is from Missouri Botanical Gardens, Dave’s Garden, All things Plants or Texas Superstar
Photo:  https://commons.wikimedia.org/wiki/File%3ASweet_alyssum_(Lobularia_maritima)_(6995044097).jpg
https://upload.wikimedia.org/wikipedia/commons/4/4d/Sweet_alyssum_%28Lobularia_maritima%29_%286995044097%29.jpg
By Franco Folini from San Francisco, USA (Sweet alyssum (Lobularia maritima)) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
Texas A&M AgriLife Extension Service
Texas A&M University System Member
  • Compact with Texans
  • Privacy and Security
  • Accessibility Policy
  • State Link Policy
  • Statewide Search
  • Veterans Benefits
  • Military Families
  • Risk, Fraud & Misconduct Hotline
  • Texas Homeland Security
  • Texas Veterans Portal
  • Equal Opportunity
  • Open Records/Public Information