trefle.io · Taken Sep 16, 2018 by Jackie Sherwood (cc-by-sa)
Campanulaceae
Scarlet lobelia
Lobelia cardinalis
Also known as Lobelia schiedeana, Lobelia kerneri, Lobelia cardinalis var. phyllostachya, Lobelia punicea
Flowering Plants · Native Plants · Lobelia · Cardinal Flower · Hummingbird Plant · Native Perennial · Red Flowers · Pollinator · Wetland · Shade Garden · North American Native · Wildlife Garden
Scarlet lobelia is a stunning native perennial prized for its vivid red flower spikes that are irresistible to hummingbirds and butterflies. Plant it in consistently moist, rich soil with partial shade to full sun, and water regularly to prevent drought stress. Deadhead spent blooms and divide clumps every few years to maintain vigor and encourage prolific flowering.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Keep soil consistently moist but not waterlogged; water thoroughly when top inch of soil feels dry · Every 5-7 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 5.8–7.8
- Temperature
- 0°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arizona, Arkansas, Belize, California, Colombia, Colorado, Connecticut, Costa Rica, Delaware, District Of Columbia, El Salvador, Florida, Georgia, Guatemala, Honduras, Illinois, Indiana, Iowa, Kansas
- Attracts
- Hummingbirds, Butterflies, Bees
Sources: trefle, usda, aspca
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