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Shrub · Asteraceae family

Cotton lavender

Santolina chamaecyparissus

Full sun in a garden 0.3–0.6 m × 0.6–0.9 m Flowers July–August to −23 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun
in a garden after 10 years0.3–0.6 m
in the wild up to 0.61 m
spacing 39 cm
FlowersJuly–August
PlantingMarch–April, September–October
WinterMulch around the base

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
dry to averagesandyloamygravelly

Watering

drought tolerant once establishedless when it rains

Frost

−23 °C
mulch around the basegreen in winter too

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

50 cm1 m1.5 m0.3–0.61 mspread 0.61–0.91 m
0.3–0.61 m× spread 0.61–0.91 m

Plant 39 cm apart.

Reaches maturity in about 5–10 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeeding
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

July–August · yellow

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–April, September–October

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

May–June

Feeding

Nutrition.

Horn meal

up to 40 g/m² a year, if the soil needs it · May–June

JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

No serious pests or diseases

The source lists no significant problems.

Sources (1)

What to combine it with

Same needs, different flowering.

They share the same sun and soil and flower in other months — so the bed flowers for longer.

Frequently asked

Quick answers.

When does cotton lavender flower?

In July–August; the flowers are yellow.

Does cotton lavender tolerate shade?

No, it needs full sun.

How much space does cotton lavender need?

At maturity 0.61–0.91 m wide and 0.3–0.61 m tall; recommended spacing 39 cm.

Sources (20) Checked 24 October 2026

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