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Perennial · Asteraceae family

Threadleaf coreopsis

Coreopsis verticillata

Full sun to part shade 0.6–0.9 m × 0.4–0.6 m Flowers June–September to −32 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun to part shade
Size0.6–0.9 m
spacing 35 cm
FlowersJune–September
PlantingMarch–May, September–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

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

Sun

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

Soil

tolerates any pH
acidicneutralalkaline
dry to averagesandyloamy

Watering

drought tolerant once establishedless when it rains

Frost

−32 °C
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

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

50 cm1 m1.5 m0.6–0.9 mspread 0.4–0.6 m
0.6–0.9 m× spread 0.4–0.6 m

Plant 35 cm apart.

Reaches maturity in about 2–5 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

June–September · yellow or red

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–November

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

March–May

Feeding

Nutrition.

Light
balanced fertilisercompost or mulch
JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

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

What you will see

Holes in leaves and shiny trails, especially on young shoots in spring.

How to protect

  1. Prevention
    • Water in the morning so the plant dries off by evening.
    • Watch and protect young shoots in spring.
    • Encourage natural enemies (birds, toads, hedgehogs).
  2. By hand damp, mild evenings from spring to autumnCollect slugs and snails in the evening by torchlight; traps made of half an orange or containers of beer.
  3. Biological warm, moist soil, spring to early autumnPhasmarhabditis hermaphrodita nematodes watered into the soil (effective against slugs, less so against snails).
Slugs and snailspest

What you will see

Holes in leaves and shiny trails, especially on young shoots in spring.

How to protect

  1. Prevention
    • Water in the morning so the plant dries off by evening.
    • Watch and protect young shoots in spring.
    • Encourage natural enemies (birds, toads, hedgehogs).
  2. By hand damp, mild evenings from spring to autumnCollect slugs and snails in the evening by torchlight; traps made of half an orange or containers of beer.
  3. Biological warm, moist soil, spring to early autumnPhasmarhabditis hermaphrodita nematodes watered into the soil (effective against slugs, less so against snails).
More about this problem
Sources (2)

Frequently asked

Quick answers.

When does threadleaf coreopsis flower?

In June–September; the flowers are yellow or red.

Does threadleaf coreopsis tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does threadleaf coreopsis need?

At maturity 0.4–0.6 m wide and 0.6–0.9 m tall; recommended spacing 35 cm.

Slugs and snails — what can you do?

Water in the morning so the plant dries off by evening. Collect slugs and snails in the evening by torchlight; traps made of half an orange or containers of beer.

Sources (18) Checked 14 October 2026

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