Asteraceae
Helianthus praecox subsp. runyonii
Helianthus praecox subsp. runyonii
Also known as Helianthus debilis subsp. runyonii, Helianthus praecox var. runyonii
Flowering Plants · Native Plants · Texas Native · Sunflower · Rare · Perennial · Wildflower · Wildlife · Slow Growing · Asteraceae · Collector Plant
Runyon's sunflower is an extremely rare Texas native subspecies with slow growth habits, making it a specialist collector's plant for native habitat enthusiasts. Plant in a partially shaded spot with consistent moisture and well-draining soil. It is best used in native prairie restoration or wildlife garden settings rather than general ornamental planting.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply to moisten the root zone, allowing the top inch of soil to dry slightly between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 5.2–7.2
- Temperature
- -10°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 30 in apart
- Growth rate
- Slow
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Texas
- Attracts
- Bees, Butterflies, Birds
Sources: trefle, usda
More Helianthus
Related plants from the same genus
Helianthus debilis subsp. cucumerifolius
Helianthus debilis subsp. cucumerifolius
Full Sun · Moderate · Slow
Helianthus debilis subsp. vestitus
Helianthus debilis subsp. vestitus
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Helianthus praecox var. hirtus
Helianthus praecox var. hirtus
Partial Sun · Moderate · Slow
Helianthus nuttallii subsp. rydbergii
Helianthus nuttallii subsp. rydbergii
Partial Sun · Moderate · Moderate
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