Also known as Heart-Leaf Oxeye · Large Yellow Ox-Eye · Telekia
Telekia speciosa, the Heartleaf Oxeye, is a striking perennial with large, heart-shaped leaves and vibrant yellow daisy-like flowers, reaching up to 2 meters in height.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
50% intensity
Thrives in full sun but tolerates partial shade, especially in hotter climates.
Consistent Moisture
50% intensity
Prefers evenly moist soil; avoid waterlogging.
Well-drained, fertile
50% intensity
Hardy
25% intensity
Tolerates a wide range of temperatures, hardy in USDA zones 4-8.
Outdoor
50% intensity
Moderate
50% intensity
Feed sparingly in spring and mid-summer with a balanced fertilizer.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water Telekia speciosa regularly, especially during dry spells, to keep the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings.
Reduce watering in winter when the plant is dormant to prevent root rot.
Deadhead spent flowers to encourage more blooms and prevent seed formation. Cut back the plant in late autumn or early spring to tidy its appearance and remove any dead or damaged foliage.
This also helps maintain a compact shape.
Telekia speciosa can be propagated by dividing established clumps in early spring or autumn. Sow seeds in autumn or early spring, either directly outdoors or in a cold frame.
Division is generally the most reliable method for home gardeners.
As a large herbaceous perennial, Telekia speciosa does not require frequent repotting. If grown in a container, repot every 2-3 years in spring into a slightly larger pot with fresh, well-draining soil to refresh the growing medium and provide more space.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Heartleaf Oxeye (Telekia speciosa)
Where Heartleaf Oxeye (Telekia speciosa) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Telekia |
| Species | Telekia speciosa |
Answers based on plant encyclopedia data
