Scarlet lobelia
Lobelia cardinalis
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.
Toxicity Warning
Known to be toxic to dogs, cats, horses.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
24″ – 60″
Soil
loam
Life Cycle
Perennial
Spacing
12″
Watering Schedule
Every 5-7 Days • Keep Soil Consistently Moist But Not Waterlogged; Water Thoroughly When Top Inch Of Soil Feels Dry
Soil pH
5.8 – 7.8
Temperature
0° – 90°F
Mature Spread
up to 36″
Root Depth
Medium
Foliage
Medium
Propagation: Seed, Cutting
Native to
Attracts
Sources
Data: trefle, usda, aspca
Image: trefle.io — Taken Sep 16, 2018 by Jackie Sherwood (cc-by-sa)
No nurseries currently have this species in stock.