How big does Large-flowered tickseed grow?

About 60 cm × 45 cm after ten years (height × width). Its ultimate size is 30–90 cm × 30–45 cm.

What soil does Large-flowered tickseed grow in?

It tolerates these soils: sandy, average garden soil.

Is Large-flowered tickseed hardy?

Hardy down to -34 °C (USDA zone 4, RHS H7). It gets through winter in every part of the country.

Is Large-flowered tickseed toxic to dogs?

No. Reliable sources list it as non-toxic to dogs.

Is Large-flowered tickseed toxic to cats?

No. Reliable sources list it as non-toxic to cats.

When does Large-flowered tickseed flower?

Flowering: June–September, yellow.

How much water does Large-flowered tickseed need?

Water need: low. Drought tolerance: high.

How much does Large-flowered tickseed cost?

It sells for roughly €4 to €7.90 in local shops, depending on size.

Large-flowered tickseed

Coreopsis grandiflora

Large-flowered tickseed (Coreopsis grandiflora) is a perennial that reaches 60 cm × 45 cm after ten years. Light: full sun, part shade. Hardy down to -34 °C. Drought tolerance: high. Non-toxic to dogs and cats. Sold in local shops from about €4.

Illustration of Large-flowered tickseed — An illustration of the typical shape of the mature plant, not a photo.

What it's good for, and what it isn't

A bushy perennial that produces large, golden yellow daisy flowers from early summer into autumn and is good for cutting too. It is happiest in a sunny spot with lean, free-draining soil and takes heat and dry weather well, appreciating an occasional watering only in long droughts. Expect it to be short-lived: it wears out after two or three years, so divide it in time or let it self-seed. Deadheading keeps it flowering for months.

Watch out for

A short-lived perennial: plants usually exhaust themselves and vanish after two or three years, so divide them every two to three years or leave some seed to renew the planting. The crown rots in wet, poorly drained soil, especially in winter. The foliage can get powdery mildew, leaf spot and rust, and slugs graze young shoots. In rich soil or with too little sun it grows lanky and flops. Without deadheading it can self-seed heavily.

Key facts

Light: Full sun, Part shade
Water need: Low
Care: Medium
Size after 10 years: 60 cm × 45 cm
Hardiness: down to -34 °C
Foliage: Deciduous
Flowering: J F M A M J J A S O N D June–September, yellow

Group	Perennial
Light	Full sun, Part shade
Size after 10 years	60 cm × 45 cm
Ultimate size	30–90 cm × 30–45 cm
Hardiness	down to -34 °C (USDA 4, RHS H7)
Soil	Sandy, Average garden soil
Foliage	Deciduous
Flowering	June–September, yellow
Water need	Low
Drought tolerance	High
Maintenance	Medium
Root aggressiveness	Low
Suckering	no
Spreading	Medium
Distance from buildings	no data
Distance from paving	no data
Litter	not typical
Planting distance	40 cm
For dogs	Non-toxic
For cats	Non-toxic
For children	no data
Typical price	from about €4

Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor.

Sizes and prices available

The same plant is sold as a small pot and as a specimen several metres tall, and the price follows. Prices are rounded and for guidance only.

Size	Typical price
size not stated	approx. €4 – €7.90

Frequently asked questions

Data updated: October 8, 2026 · How our data is made

Appears in these lists

Perennials for part shade Perennials for full sun Perennials that flower all summer Drought-tolerant plants Drought-tolerant perennials Drought-tolerant plants for sandy soil Plants that are non-toxic to dogs Plants that are non-toxic to cats Perennials for pollinators Plants for containers Plants for a Mediterranean garden

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