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Plant Encyclopedia

Coreopsis verticillata

Coreopsis verticillata (whorled tickseed, "Itobaharushagiku")

Japanese name: イトバハルシャギク (糸葉波斯菊)
Scientific name: Coreopsis verticillata

Coreopsis verticillata

[Overview]
A perennial 20–100 cm tall.
It has a rhizome.
The leaves are whorled and deeply divided into 3–9 bird's-foot-like lobes, with linear to thread-like segments.
The leaves on the upper part of the stem are simple, linear to thread-like.
A flower head about 5 cm across is borne at the stem tip.
Both the ray florets and the tubular florets are bright yellow.
The fruit is an achene.

[Cultivation]
Propagate from seed or by division.
It grows well in any soil as long as the site is sunny and well drained.
For potted plants, water thoroughly when the soil dries; for plants in the ground, rainfall is sufficient.
Fertilizer is not particularly necessary.
There are no particular pests or diseases.

Details

Names
English: whorled tickseed, whorled coreopsis, thread-leaved tickseed, thread leaf coreopsis, and pot-of-gold
Japanese: イトバハルシャギク(糸葉波斯菊)
Life form
Perennial
Habit
Terrestrial
Planting (or sowing) season
March, April, September, October
Flowering season
May, June, July, August, September
Distribution or origin
North America
Height
200–1000 mm
Leaf shape
Simple leaf (unlobed), Lobed leaf
Leaf arrangement
Whorled
Leaf margin
Entire
Flower color
Yellow
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seeds, Seedlings
Propagation
Seed, Division
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance, Heat tolerance
Suitable uses
Potted plant, Flower bed, Parks and gardens, Container
Hardiness zone
6a–6b
Japan Flower Trade Code
39682

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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