Blue Lobelia Lobelia speciosa STARSHIP
Lobelia speciosa 'STARSHIP Blue'
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
12 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Requires consistent moisture
Humidity
Prefers moderate to high humidity
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Lobelia speciosa 'Starship Blue' is a perennial shrub known for its upright growth habit, with lush green foliage and striking spikes of vivid blue flowers that attract pollinators throughout the summer. This cultivar is distinguished by its particularly intense blue flower colour and its compact, bushy form, making it an excellent choice for vibrant borders and container gardening.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into moist soil in early spring.
- Keep soil consistently moist for best germination.
- Transplant seedlings after 6 weeks when established.
- Place in partial shade for optimal growth.
- Water regularly during dry spells.
- Fertilize monthly with a balanced liquid feed.
Pro Tip
Ensure well-draining soil and partial shade for vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Prune lightly after flowering to encourage new growth
- Mulch to retain soil moisture
Don't
- Avoid overwatering which can cause root rot ❌
- Don’t expose to full sun in hot climates
- Refrain from heavy fertilization
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Blue Lobelia Lobelia speciosa STARSHIP questions
What zones can Blue Lobelia Lobelia speciosa STARSHIP grow in?
Blue Lobelia Lobelia speciosa STARSHIP is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Blue Lobelia Lobelia speciosa STARSHIP deer resistant?
Not reliably. Deer may browse Blue Lobelia Lobelia speciosa STARSHIP, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Blue Lobelia Lobelia speciosa STARSHIP bloom?
Blue Lobelia Lobelia speciosa STARSHIP 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 Blue Lobelia Lobelia speciosa STARSHIP need full sun?
Blue Lobelia Lobelia speciosa STARSHIP does best in part shade.
More Lobelia to compare
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Lobelia cardinalis
Fan Cinnabar Rose Lobelia
Lobelia x speciosa 'Fan Cinnabar Rose'
Hybrid Cardinal Flower
Lobelia x speciosa 'Compliment Violet'
Lilac Candles Great Blue Lobelia
Lobelia siphilitica 'Lilac Candles'
Cardinal Flower Deep Rose
Lobelia cardinalis 'Deep Rose'
Cardinal Flower 'Black Truffle'
Lobelia cardinalis 'Black Truffle'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Blue Lobelia Lobelia speciosa STARSHIP 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.
