Photo by Melody

PlantFiles: Madwort
Alyssum spinosum

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Family: Brassicaceae (brass-ih-KAY-see-ee) (Info)
Genus: Alyssum (al-ISS-um) (Info)
Species: spinosum (spy-NO-sum) (Info)

Synonym:Ptilotrichum spinosum

Category:
Shrubs

Height:
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)

Spacing:
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)

Hardiness:
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Magenta (Pink-Purple)
White/Near White

Bloom Time:
Late Spring/Early Summer

Foliage:
Evergreen
Silver/Gray

Other details:
Flowers are fragrant
Drought-tolerant; suitable for xeriscaping
Provides winter interest

Soil pH requirements:
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From woody stem cuttings
From seed; direct sow after last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

No details have been posted.



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