How to Grow Cotton Lavender
Cotton Lavender
Santolina chamaecyparissus
shrubCotton Lavender is a compact, evergreen Mediterranean shrub prized for its silvery-gray feathery foliage and button-like yellow flower heads. It is extremely drought-tolerant and low-maintenance, making it ideal for xeriscaping and ornamental gardens. Despite its common name, it is not a true lavender but belongs to the Asteraceae family.
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 6-10; hardy to zone 6 with winter protection
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Growth Stages
Establishment
4-8 weeksYoung transplant with silvery, finely-divided foliage beginning to develop branching structure
Water regularly but allow top inch of soil to dry between waterings. Protect from heavy rain and waterlogging. Avoid oversized pots that retain excess moisture.
Vegetative Growth
2-4 monthsPlant develops dense, mounding form with increasingly feathery, silver-gray foliage; no flowers yet
Reduce watering as plant establishes. Pinch back growing tips to encourage bushier, more compact growth. Ensure excellent drainage.
Flowering
June-August (4-6 weeks)Small, bright yellow button-like flower heads (pom-poms) appear at stem tips above silvery foliage
Deadhead spent flowers to encourage continued blooming and neater appearance. Water only if foliage wilts; generally requires no supplemental water once established.
Seed Development
4-6 weeksFlower heads age and dry; seeds develop within each button head
Allow some flowers to dry on plant if saving seed or for wildlife. Remove remaining spent blooms to maintain ornamental appearance.
Dormancy
November-FebruaryPlant maintains evergreen foliage but stops growth; foliage may develop purple or bronze tones in cold
Minimal watering except during extended drought. In zone 6, provide loose mulch around base (not over crown) for winter protection. Avoid fertilizing.
Common Pests
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Prevent with excellent drainage and reduced watering. Remove affected plant material. Improve air circulation. Use well-draining potting mix. Avoid overhead watering.
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Spray with water to dislodge. Use neem oil or horticultural soap if infestation is severe. Increase humidity and air circulation.
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Spray with water or insecticidal soap. Encourage beneficial insects. Prune heavily infested shoots.
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Ensure good air circulation. Avoid overhead watering. Apply sulfur dust or neem oil if needed. Remove heavily affected foliage.
Uses
Dried flowers and moth repellent
HouseholdThe dried flower heads retain their structure and color for months, making them excellent for dried arrangements, wreaths, and potpourri. Dried flowers and foliage can be placed in sachets or stored with linens as a natural insect repellent. [source]
Traditional herbal remedy
MedicinalTraditionally used in Mediterranean folk medicine as a digestive aid and for skin health. The plant contains volatile oils and sesquiterpenes with mild astringent and antimicrobial properties. [source]
Ornamental and craft material
CraftThe silvery-gray foliage and yellow flowers are stunning in mixed borders, coastal gardens, and container plantings. The feathery leaves provide excellent texture contrast with other plants. [source]
Herbal tea and flavoring
CulinaryFresh or dried flowers and foliage can be steeped as a mild herbal tea with a slightly bitter, herbaceous flavor. Sometimes used as a culinary garnish in Mediterranean cooking. [source]
Pollinator attraction
WildlifeYellow flower heads attract bees, butterflies, and other pollinators in mid to late summer when other nectar sources may be limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For dried flowers and foliage: Cut stems in mid-morning after dew dries, just as flowers reach full button stage but before they fully mature. Tie in bundles and hang upside-down in a warm, dry, airy location out of direct sunlight for 7-10 days. Harvest foliage year-round by cutting stems; fresh young growth smells more aromatic. To save seed: Allow flower heads to dry completely on the plant, then collect by crushing dried flowers over a paper.
Fun Facts
- 🌱 Despite the common name 'Cotton Lavender,' Santolina is not related to true lavender (Lavandula); the name refers to its cottony-textured foliage and lavender-like fragrance.
- 🌱 The Latin species name 'chamaecyparissus' means 'ground cypress,' referring to its resemblance to tiny cypress foliage.
- 🌱 Santolina has been used since medieval times as an ornamental plant and as a moth repellent in storage, and it was often grown in knot gardens for its decorative, fine-textured foliage.
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