North America Non-native Plant

Caucasian Pincushion Flower

Botanical name: Scabiosa caucasica

USDA symbol: SCCA21

Native status: Not native but doesn't reproduce and persist in the wild

Caucasian Pincushion Flower: A Charming Perennial for Your Garden Looking for a flower that’s as fun to say as it is to grow? Meet the Caucasian pincushion flower (Scabiosa caucasica), a delightful perennial that brings a touch of old-world charm to modern gardens. With its distinctive blue blooms that really ...

Caucasian Pincushion Flower: A Charming Perennial for Your Garden

Looking for a flower that’s as fun to say as it is to grow? Meet the Caucasian pincushion flower (Scabiosa caucasica), a delightful perennial that brings a touch of old-world charm to modern gardens. With its distinctive blue blooms that really do look like little pincushions, this plant has been winning over gardeners for generations.

What Makes This Plant Special?

The Caucasian pincushion flower is a slow-growing perennial that reaches about 2.5 feet tall at maturity. Its most striking feature is undoubtedly its beautiful blue flowers, which appear from early spring through fall during its active growing period. The blooms sit atop sturdy stems above attractive gray-green foliage that has a lovely medium texture.

What really sets this plant apart is its incredibly long blooming season. While many perennials give you a few weeks of flowers, the pincushion flower keeps the show going for months, making it a fantastic value in the garden.

Native Status and Geographic Distribution

This charming perennial hails from the Caucasus Mountains region, including areas of Armenia, Azerbaijan, Georgia, and parts of Turkey and Iran. While it’s not native to North America, it has adapted well to gardens in cooler climates and doesn’t pose any known invasive threats.

Garden Design and Landscape Role

The Caucasian pincushion flower shines in several garden settings:

  • Cottage gardens where its informal charm fits perfectly
  • Perennial borders where it provides reliable color
  • Cut flower gardens – those stems are perfect for bouquets
  • Mediterranean-style gardens where it complements other drought-tolerant plants

Its erect, multiple-stem growth form and medium height make it ideal for the middle of flower borders, where it won’t overshadow shorter plants but won’t get lost behind taller specimens either.

Growing Conditions

This plant is refreshingly straightforward to grow if you can meet its basic needs:

  • Soil: Prefers well-drained, medium to fine-textured soils with a pH between 6.0-7.5
  • Sunlight: Full sun to partial shade (shade tolerant)
  • Water: Medium moisture needs with medium drought tolerance once established
  • Climate: Hardy in USDA zones 3-7, tolerating temperatures down to -23°F
  • Fertility: Medium fertility requirements – not too rich, not too poor

Planting and Care Tips

Getting your pincushion flower off to a good start is pretty simple:

  • Plant in spring after the last frost, spacing plants about 12-18 inches apart
  • Choose a location with good drainage – this plant doesn’t like wet feet
  • Deadhead spent flowers to encourage continued blooming
  • Divide clumps every 3-4 years in early spring to maintain vigor
  • Mulch around plants to retain moisture and suppress weeds

The plant has a moderate lifespan and slow growth rate, so be patient – good things come to those who wait!

Propagation

You can start new plants from seed (about 165,000 seeds per pound!) or divide existing clumps. Seeds can be sown in spring, and bare root plants are also available from some specialty nurseries, though commercial availability can be limited.

Pollinator and Wildlife Benefits

Those pincushion-like flowers aren’t just pretty – they’re magnets for pollinators! Bees, butterflies, and other beneficial insects love the nectar-rich blooms. The long flowering period means you’re providing a reliable food source throughout the growing season.

Should You Grow It?

The Caucasian pincushion flower is a solid choice for gardeners who appreciate reliable, long-blooming perennials. While it’s not native to North America, it’s well-behaved and offers excellent garden value. However, if you’re prioritizing native plants, consider alternatives like wild bergamot (Monarda fistulosa) or purple coneflower (Echinacea purpurea), which offer similar pollinator benefits and cottage garden charm.

Whether you choose this delightful import or a native alternative, you’ll be adding beauty and pollinator support to your garden – and really, that’s what matters most!

How

Caucasian Pincushion Flower

Grows

Growing season

Spring, Summer, Fall

Lifespan

Moderate

Growth form & shape

Multiple Stem and Erect

Growth rate

Slow

Height at 20 years
Maximum height

2.5

Foliage color

Gray-Green

Summer foliage density

Porous

Winter foliage density

Porous

Foliage retention

No

Flowering

Yes

Flower color

Blue

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

Medium

Fire Resistant

No

Foliage Texture

Medium

Low-growing Grass

No

Resproutability

No

Coppice Ability

No

Bloat

None

Caucasian Pincushion Flower

Growing Conditions

Adapted to Coarse Soil

No

Adapted to Medium Soil

Yes

Adapted to Fine Soil

Yes

Anaerobic tolerance

None

CaCO₃ tolerance

Low

Cold Stratification

No

Drought tolerance

Medium

Nutrient requirement

Medium

Fire tolerance

None

Frost-free days minimum

130

Hedge tolerance

High

Moisture requirement

Medium

pH range

6.0 to 7.5

Plants per acre

2700 to 4800

Precipitation range (in)

30 to 50

Min root depth (in)

8

Salt tolerance

Medium

Shade tolerance

Tolerant

Min temperature (F)

-23

Cultivating

Caucasian Pincushion Flower

Flowering season

Early Spring

Commercial availability

No Known Source

Fruit/seed abundance

Medium

Fruit/seed season

Summer to Fall

Fruit/seed persistence

No

Propagated by bare root

Yes

Propagated by bulb

No

Propagated by container

No

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

165000

Seed spread rate

Slow

Seedling vigor

Medium

Small grain

No

Vegetative spread rate

None

Caucasian Pincushion Flower

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

Dipsacales

Family

Dipsacaceae Juss. - Teasel family

Genus

Scabiosa L. - pincushions

Species

Scabiosa caucasica M. Bieb. - Caucasian pincushion flower

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