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Telekia speciosa

Telekia speciosa
Yellow Oxeye, Heartleaf Oxeye

4,9/5
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The bucket received this winter seems to be very well rooted. However, I am surprised that I still don't see any sign of vegetation growth.

Ewen, 02/05/2023

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This plant carries a 12 months recovery warranty

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This non-invasive, rhizomatous plant is impressive at 2 metres (7 feet) tall and forms a tall, bushy clump, with large aromatic leaves, flowering throughout the summer until the end of autumn with single, fragrant, golden yellow daisies with an orange heart. This perennial will feed birds and pollinating insects, bringing joy to borders and wildflower compositions. Suitable for any moist, ordinary soil, even clay, in the sun or partial shade.
Flower size
8 cm
Height at maturity
2 m
Spread at maturity
1 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time July to November
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Description

Telekia speciosa, sometimes called yellow Ox-eye or Splendid Telekia, is a large bushy perennial with rhizomes that produce impressive tall leafy stems, 2 metres (7 feet) high. It forms a beautiful mass of large dark green and aromatic leaves and flowers from summer to autumn with single daisy-like, golden yellow flowers with an orange centre. This resourceful plant nourishes birds and pollinators, bringing joy to borders and wildflower compositions at the end of the season. It thrives in ordinary but fertile, even clay or limestone, moist soil in full sun or light shade.

 

Telekia speciosa, also known as Buphtalmum speciosum, Telekia cordifolium, Telekia ovata, Inula caucasica, or Corvisartia caucasica, is a botanical species of the Asteraceae family, related to perennial sunflowers (Helianthus). Discovered in Transylvania, this rhizomatous plant with deep roots is native to mountainous regions in western and southwestern Europe, Georgia, Ukraine, southern and central Russia (from the Balkans to the Caucasus), and Turkey (humid clearings of Anatolia). This plant forms a large, erect branching clump which easily reaches 2 metres (7 feet) high with a 1-metre (3 feet) spread. It flowers from June-July to September-October and is loved by bees. Lots of flowers appear at the branched top of the stems, resembling perfectly round, 6 to 10 cm (2 to 4in) diameter, bright yellow daisies with an orange centre that turns brown and is marked by a circle, hence the name "ox-eye." The dark green, thick, aromatic, cordate at the base, triangular, doubly toothed deciduous leaves can reach up to 30 cm (12in) long, all the way up the stems. They are smooth on the upper surface and hairy on the underside. The small basal leaves do not exceed 10 cm (4in) long. Telekia speciosa easily naturalises through self-seeding.

  

This large perennial 'sunflower' has a long fragrant, nectar-rich flowering period and is adapted to cold and damp soils, even limestone. Telekia speciosa is an excellent non-invasive, long-lasting, vigorous perennial. It is perfect for the back of a border or bed, or the water's edge because it does not tolerate a combination of heat and drought well. It has a wild appearance and integrates well into slightly untamed areas of the garden, with cosmos, perennial sweet peas, giant scabious (Cephalaria gigantea), gaillardias, Japanese anemones, and hanging willowherb. Another idea would be to group it with equally easy plants: Vernonia noveboracensis, Symphyotrichum laeve var. 'Bluebird', Eupatorium fistulosum, Symphyotrichum georgianum, Andropogon virginicus, Muhlenbergia capillaris. Its flowers hold up very well when cut.

Telekia speciosa in pictures

Telekia speciosa (Flowering) Flowering
Telekia speciosa (Foliage) Foliage
Telekia speciosa (Plant habit) Plant habit

Flowering

Flower colour yellow
Flowering time July to November
Inflorescence Flower head
Flower size 8 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green
Aromatic? Fragrant foliage when creased

Plant habit

Height at maturity 2 m
Spread at maturity 1 m
Growth rate normal

Botanical data

Genus

Telekia

Species

speciosa

Family

Asteraceae

Other common names

Yellow Oxeye, Heartleaf Oxeye

Origin

Caucasus

Product reference810511

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Planting and care

Plant Telekia speciosa in ordinary, fertile, well-drained soil, even clay or limestone. This perennial does not tolerate drought well but can tolerate heavy soils, as long as they are well-cultivated and rich. Plant in a sunny position in moist soil, or in partial shade in drier soil, sheltered from strong winds that could flatten the clump. The plant generally does not need staking. It readily self-seeds in the garden, making it an ideal candidate for transition zones with the countryside. Its seeds will feed the birds. Prune the clump after flowering to prevent self-seeding.

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Planting period

Best planting time March, October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Back of border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, fertile, deep.

Care

Pruning instructions Cut back after flowering to prevent seed formation.
Pruning Pruning recommended once a year
Pruning time October to December
Disease resistance Very good
Overwinter Can be left in the ground
4,9/5
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