North America Non-native Plant

Lavender Cotton

Botanical name: Santolina chamaecyparissus

USDA symbol: SACH2

Life cycle: perennial

Habit: subshrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Lavender Cotton: A Mediterranean Beauty for Your Garden If you’ve been searching for a drought-tolerant plant that brings year-round texture and silvery elegance to your landscape, lavender cotton (Santolina chamaecyparissus) might just catch your eye. This compact Mediterranean shrub has been winning over gardeners with its aromatic, finely-cut foliage and ...

Lavender Cotton: A Mediterranean Beauty for Your Garden

If you’ve been searching for a drought-tolerant plant that brings year-round texture and silvery elegance to your landscape, lavender cotton (Santolina chamaecyparissus) might just catch your eye. This compact Mediterranean shrub has been winning over gardeners with its aromatic, finely-cut foliage and cheerful yellow blooms. But before you rush to the nursery, let’s dive into what makes this plant tick and whether it’s the right fit for your garden.

What Exactly Is Lavender Cotton?

Despite its common name, lavender cotton isn’t related to either lavender or cotton – gardeners can be wonderfully creative with plant names! This perennial shrub is actually a member of the daisy family and hails from the sun-soaked Mediterranean region. It’s a non-native plant that has naturalized in several U.S. states, meaning it can survive and reproduce on its own once established.

Lavender cotton typically grows as a low, mounding shrub that stays under 4-5 feet tall, though most garden varieties hover around 12-24 inches in height and spread. Its claim to fame is definitely that gorgeous silver-gray foliage that looks almost like tiny, intricate fern fronds.

Where Does It Grow?

In the United States, you’ll find lavender cotton growing in California, Georgia, Louisiana, Massachusetts, North Carolina, and South Carolina. It thrives in USDA hardiness zones 6-9, making it suitable for a good chunk of the country.

The Appeal Factor

What draws gardeners to lavender cotton? Several things make it shine:

  • That stunning silver-gray foliage provides incredible textural contrast in the garden
  • It’s aromatic – crush a few leaves and you’ll get a pleasant, somewhat camphor-like scent
  • Bright yellow, button-like flowers appear in summer, creating a cheerful display
  • It’s incredibly drought-tolerant once established
  • The compact, mounding form works beautifully as edging or in borders
  • It maintains its attractive foliage year-round in milder climates

Garden Design and Landscape Uses

Lavender cotton is quite the versatile performer in landscape design. It works wonderfully in Mediterranean-style gardens, xeriscape designs, and herb gardens. The silvery foliage makes it an excellent companion for plants with darker green leaves or colorful flowers – think of it as nature’s way of providing a neutral backdrop that makes other plants pop.

Consider using lavender cotton for:

  • Formal or informal borders and edging
  • Rock gardens and drought-tolerant landscapes
  • Cottage garden designs
  • Herb gardens (though it’s more ornamental than culinary)
  • Container plantings

Pollinator and Wildlife Benefits

When lavender cotton blooms in summer, those cheerful yellow flowers aren’t just pretty to look at – they’re also valuable to bees and other beneficial insects. The plant provides nectar and pollen during its flowering period, making it a useful addition to pollinator-friendly gardens.

Growing Lavender Cotton Successfully

The good news is that lavender cotton is refreshingly easy to grow once you understand its preferences. This Mediterranean native loves conditions that remind it of home: lots of sun and well-draining soil.

Ideal Growing Conditions

  • Sun: Full sun is essential – at least 6-8 hours of direct sunlight daily
  • Soil: Well-draining soil is crucial; it prefers alkaline to neutral pH but adapts to various soil types
  • Water: Drought-tolerant once established; actually prefers drier conditions
  • Climate: Thrives in zones 6-9; may need winter protection in zone 6

Planting and Care Tips

When to Plant: Spring is ideal, after the last frost date in your area.

Spacing: Give plants 18-24 inches of space between them – they’ll fill in nicely.

Watering: Water regularly the first growing season to help establish roots, then reduce watering significantly. Overwatering is more likely to kill this plant than drought!

Pruning: This is where lavender cotton really shines in the low-maintenance department. Prune lightly after flowering to maintain shape, and give it a harder cut back in early spring if it’s gotten leggy. Don’t be afraid to be a bit ruthless – it responds well to pruning.

Fertilizing: Generally unnecessary. Rich soils can actually make the plant floppy and less aromatic.

Things to Consider

While lavender cotton can be a lovely addition to the right garden, there are a few things to keep in mind. As a non-native plant, it doesn’t provide the same ecological benefits as native species. If you’re passionate about supporting local ecosystems, you might want to consider native alternatives that offer similar aesthetic appeal.

Some excellent native options to consider include native artemisias (like white sage), native salvias, or regional native plants with silvery foliage that thrive in your specific area. Your local native plant society or extension office can help you identify the best native alternatives for your region.

The Bottom Line

Lavender cotton can be a wonderful choice for gardeners looking for drought-tolerant, low-maintenance plants with distinctive foliage and form. It’s particularly well-suited to Mediterranean-style gardens, xeriscape designs, and situations where you need reliable, attractive edging or border plants.

Just remember that while it’s not considered invasive, being mindful of native alternatives can help you create a garden that’s both beautiful and ecologically beneficial. Whether you choose lavender cotton or opt for native plants with similar qualities, the key is selecting plants that will thrive in your specific conditions and match your garden’s style and goals.

Lavender Cotton

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Santolina L. - lavender cotton

Species

Santolina chamaecyparissus L. - lavender cotton

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA