Species
Lobelia speciosaHybrid Lobelia8 other cultivars
‘Fan Cinnabar Rose’Fan Cinnabar Rose Lobelia
‘Compliment Violet’Hybrid Cardinal Flower
‘Compliment Blue’Compliment Blue Lobelia
‘STARSHIP Blue’Blue Lobelia Lobelia speciosa STARSHIP
‘Fan Orchid Rose’Fan Orchid Rose Lobelia
‘Fan Scarlet’Fan Scarlet Lobelia
‘Starship’Starship Blue Cardinal Flower
‘Complexion’Lobelia x speciosa Complexion
The Story
Plant Bio
Lobelia speciosa ‘Compliment Deep Red’ features striking deep red flowers that create a stunning visual impact in the garden. It is known for its graceful, upright growth habit and lush foliage.
This cultivar stands out due to its vibrant flower color and longer blooming period compared to other Lobelia species.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
30 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8, 9
Water
Regular watering, moist soil
Humidity
Moderate to high
Lifespan
Perennial
Native To
North America
Toxicity
Toxic if ingested
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and encourage root growth.
- Keep soil consistently moist but well-drained during active growing season.
- Apply balanced fertilizer monthly during spring and summer.
- Pinch back early growth to promote bushier plants.
- Divide clumps every 2–3 years to rejuvenate the plant.
Pro Tip
Use a well-draining, nutrient-rich soil and provide partial shade for optimal growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Prune after flowering to encourage new growth
- Apply organic fertilizer monthly during growing season
- Mulch around base to retain moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don't forget to deadhead spent flowers
- Avoid planting in full, direct sun in hot climates
- Refrain from using chemical pesticides without organic options
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Compliment Deep Red Lobelia questions
What zones can Compliment Deep Red Lobelia grow in?
Compliment Deep Red Lobelia is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Compliment Deep Red Lobelia deer resistant?
Yes — Compliment Deep Red Lobelia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Compliment Deep Red Lobelia bloom?
Compliment Deep Red Lobelia typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Compliment Deep Red Lobelia need full sun?
Compliment Deep Red Lobelia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Lobelia to compare
Cardinal Flower
Lobelia cardinalis
Lilac Candles Great Blue Lobelia
Lobelia siphilitica 'Lilac Candles'
Fan Cinnabar Rose Lobelia
Lobelia speciosa 'Fan Cinnabar Rose'
Hybrid Cardinal Flower
Lobelia speciosa 'Compliment Violet'
Cardinal Flower 'Black Truffle'
Lobelia cardinalis 'Black Truffle'
Perrys White Cardinal Flower
Lobelia cardinalis 'Perrys White'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Compliment Deep Red Lobelia with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.