How to Grow Cotton Lavender Nana

Cotton Lavender Nana

Santolina chamaecyparissus 'Nana'

shrub

Cotton Lavender Nana is a compact, dwarf cultivar of cotton lavender with finely divided, silvery-gray foliage that resembles feathery cotton. It produces bright yellow, button-like flower heads in summer and is prized for its ornamental foliage and drought tolerance. This evergreen Mediterranean native is commonly used in rock gardens, borders, and as a specimen plant.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; prefers 8+ hours

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Water: Low water needs once established; drought tolerant. Water moderately during growing season; reduce in winter. Avoid overwatering, which causes root rot. Allow soil to dry between waterings.

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Spacing: 18 inches

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Days to maturity: 45-60 days for establishment; flowers appear within first growing season

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Planting depth: Plant transplants at soil level; do not bury the stem

Soil

Type: Well-draining sandy or gravelly soil

pH: 6.5-7.5

Amendments:

Perlite or pumice for drainage Coarse sand Gravel mulch to improve drainage

Growing Zones

Find your zone →

Thrives in USDA zones 6-10, prefers warmer, drier climates

6a 6b 7a 7b 8a 8b 9a 9b 10a

Growth Stages

Establishment

4-6 weeks

Young plant focuses on root development; foliage is silvery-gray and compact

Water moderately to establish roots; protect from excessive moisture. Provide full sun and well-draining soil. Avoid fertilizing during first 6 weeks.

Vegetative Growth

8-12 weeks

Plant develops dense, mounding foliage with fine, feathery silvery-gray leaves; compact habit maintained

Pinch back shoot tips to encourage bushiness and maintain neat shape. Water sparingly; soil should dry between waterings. Fertilize lightly with balanced fertilizer.

Budding

2-3 weeks

Yellow flower buds form at branch tips; foliage remains ornamental and silvery

Continue regular care; do not overwater. Ensure excellent drainage. Avoid high-nitrogen fertilizer which promotes foliage over flowers.

Flowering

6-10 weeks (summer to early fall)

Bright yellow, round, button-like flower heads appear above silvery foliage; long flowering period

Deadhead spent flowers to encourage continued blooming. Maintain dry conditions. No special feeding needed. Flowers attract beneficial insects.

Dormancy/Winter

3-4 months

Plant growth slows; foliage remains evergreen and silvery but flowering stops; plant becomes semi-dormant

Reduce watering significantly; allow soil to dry thoroughly. Do not fertilize. Provide frost protection in zones 6-7. Prune lightly in late winter to remove dead growth and shape.

Companion Planting

Plan your garden →

Plant with:

Sedum Echeveria Artemisia Rosemary Thyme Catmint Salvia Lavender Ornamental grasses

Avoid planting near:

Plants requiring moist soil (hostas, astilbe, ferns) Heavy feeders that compete for nutrients Plants susceptible to root rot in dry conditions

Common Pests

Increase humidity by misting; spray with strong water jet; use insecticidal soap if severe. Ensure good air circulation.
Use yellow sticky traps; spray with neem oil or insecticidal soap. Remove heavily infested leaves.
Spray with water or insecticidal soap. Encourage beneficial insects. Remove affected foliage if needed.
Improve drainage immediately; reduce watering; remove affected plant material. Repot in fresh, well-draining soil if in containers. Ensure air circulation.

Uses

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Garden design and landscape accents

Ornamental

The dwarf, compact habit and silvery-gray foliage make it ideal for rock gardens, alpine troughs, borders, and xeriscape designs. Its bright yellow button flowers add long-season color to Mediterranean-style or drought-tolerant gardens. [source]

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Dried flowers and arrangements

Craft

The bright yellow flower heads retain their shape and color when dried, making them excellent for dried flower arrangements, wreaths, and long-lasting floral displays. [source]

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Traditional herbal uses

Medicinal

Historically, cotton lavender has been used in traditional medicine for its antiseptic and insecticidal properties. The plant contains compounds with antimicrobial activity. [source]

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Pollinator support

Wildlife

The abundant yellow flower heads attract bees, butterflies, and other beneficial insects throughout the flowering season, supporting pollinator populations in the garden. [source]

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Natural insect repellent

Household

The foliage has strong aromatic compounds historically used to repel insects and moths. Dried foliage can be placed in closets or storage areas as a natural deterrent. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Cotton Lavender Nana is grown ornamentally, not harvested for food. Cut flowers for dried arrangements by harvesting in peak bloom during mid-summer; dry upside down in a warm, well-ventilated space for 1-2 weeks. Prune lightly in late winter to maintain compact shape and encourage bushiness. Deadhead spent flowers during blooming season to extend flowering and improve appearance.

Fun Facts

🌱 Cotton Lavender is not actually lavender but gets its name from its feathery, cotton-like foliage and its Mediterranean origin alongside true lavender species.
🌱 The 'Nana' cultivar name means 'dwarf' in Latin, referring to its compact, mounding growth habit that typically reaches only 12-18 inches tall and wide.
🌱 The bright yellow flower heads remain attractive to insects and can be left standing through winter to provide visual interest and shelter for beneficial insects.

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