Geum chiloense ‘Blazing Sunset’ – A Growing Guide
Geum chiloense ‘Blazing Sunset’ is a vibrant perennial celebrated for its fiery red‑orange blooms and long‑lasting colour. Perfect for borders, containers and pollinator‑friendly planting, it’s easy to grow with the right soil and moisture. This guide covers planting, watering, feeding and seasonal care to keep ‘Blazing Sunset’ thriving.
Overview
Geum chiloense ‘Blazing Sunset’ is a hardy, clump‑forming perennial producing large, semi‑double flowers in vivid shades of red and orange. Blooming from late spring to early summer, it adds bold colour and texture to borders and containers while maintaining attractive foliage throughout the season.
Growing Conditions
Light
- Prefers full sun to partial shade
- In hotter areas, light afternoon shade helps prevent stress
Soil
- Grows best in fertile, well‑drained soil
- Tolerates a range of soil types
- Ideal pH: slightly acidic to neutral
Water
- Keep soil consistently moist
- Avoid waterlogging
- Water regularly during dry periods
Planting Geum ‘Blazing Sunset’
Best Time to Plant
- Spring or autumn when conditions are mild
Spacing
- Plant 12–18 inches (30–45cm) apart to allow room for clump expansion
Planting Depth
- Plant at the same depth as the nursery pot
Care & Maintenance
Fertilising
- Feed with a balanced fertiliser in:
- Early spring
- Mid‑summer (to support a longer flowering season)
Mulching
- Apply organic mulch to:
- Retain moisture
- Suppress weeds
- Keep roots cool
Avoid piling mulch directly against stems.
Pruning
- Deadhead regularly to encourage more blooms
- After flowering, trim back spent stems to keep the plant tidy
Pests & Diseases
Common Issues
- Aphids
- Slugs and snails (young shoots are vulnerable)
- Powdery mildew in humid or crowded conditions
Management
- Use insecticidal soap or neem for pests
- Improve airflow to reduce mildew
- Water at the base, not overhead
Propagation
Division
- Divide established clumps every 2–3 years
- Best done in early spring or late summer
Seeds
- Can be grown from seed but is a slower process
- Seedlings may show some variation
Uses in the Garden
Perfect For:
- Cottage gardens
- Mixed perennial borders
- Wildlife and pollinator planting
- Containers
Companion Plants
Pairs beautifully with:
- Echinacea
- Salvia
- Nepeta
- Coreopsis
Seasonal Interest
- Blooms late spring → early summer
- Foliage remains fresh-looking through the growing season
Winter Care
Geum chiloense is hardy but appreciates:
- A winter mulch layer in exposed or cold regions
- Cutting back dead foliage once frost arrives
It reliably returns each spring.
FAQs
Is Geum ‘Blazing Sunset’ hardy?
Yes — it is fully hardy in UK gardens.
Does Geum bloom all summer?
It blooms mainly late spring to early summer, with repeat flowers if deadheaded.
Can Geum grow in containers?
Absolutely — it performs well in pots with regular watering.
Does it spread?
Geum forms tidy clumps and spreads slowly, making it well-behaved in borders.
How tall does it grow?
Around 45–60cm tall with a similar spread.
