Overview
Helenium hoopesii is a perennial herb in the genus Helenium, part of the Asteraceae family. It typically grows around 0.9 m tall. Helenium hoopesii grows best in full sun, and tolerates most soils. Its UK hardiness is rated H7. It is native to Western United States.
About
Helenium hoopesii is a perennial herb that carries orange to yellow, daisy-like flower heads through late summer. It grows erect to about 0.9 m and suits open, sunny positions. Native to the western United States, it flowers in the UK from July to September. It prefers moist but well-drained soils and will tolerate sandy, loamy or clay textures.
Wikipedia contributors, CC BY-SA 4.0 — Hymenoxys hoopesii
About the genus
Helenium is a genus of annuals and herbaceous perennial plants in the family Asteraceae, native to the Americas.
Wikipedia contributors, "Helenium", CC BY-SA 4.0 — Helenium
In the garden
Helenium hoopesii is a perennial herb native to the western United States that produces a succession of orange to yellow flower heads in late summer. Plants are upright to roughly 0.9 m and reliably bring colour between July and September in British gardens. The species is valued for those late-summer displays when many other perennials are past their peak. For cultivation choose a site in full sun with consistently moist but well-drained soil; it accepts sandy, loamy or clay types provided drainage is adequate. Exposure should be full sun to promote best flowering. In UK hardiness terms H7 denotes fully hardy, so the species will tolerate the coldest British winter conditions; the USDA hardiness range of 4–8 gives an idea of its wider climatic limits. Siting works best where a metre-tall perennial is needed at the back of a border, in a meadow-style scheme or in mixed perennial beds that can accommodate its late-summer bloom. Because plants reach about 0.9 m, position them where the stems can be seen rather than hidden by taller neighbours and they will contribute orange-to-yellow colour when many other herbaceous plants are fading.
Growing conditions
Best soil and position for Helenium
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy, Clay
- Soil moisture
- Moist but well-drained
- Exposure
- Full sun
- UK hardiness
- H7
Plant details
Helenium hoopesii size, habit and characteristics
- Plant type
- Perennial herb
- Height
- 0.9 m
- Native to
- Western United States
Frequently asked questions
Where is the best place to plant Helenium hoopesii?
Helenium hoopesii prefers full sun. It suits full sun positions.
What soil does Helenium hoopesii need?
Helenium hoopesii is adaptable and grows happily in most soil types, including sandy, loamy and clay. Aim for soil that stays moist but well-drained.
How big does Helenium hoopesii grow?
Helenium hoopesii reaches a height of 0.9 m.
Is Helenium hoopesii hardy in the UK?
Helenium hoopesii has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
