- Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
- Height 22 - 28 Inches
- Width 16 - 22 Inches
- Growing Zones 6-10
Tall, graceful spires of scarlet red blooms will dazzle you. The bronzing on the green leaves perfectly complements the cardinal-red color of the blossoms. Hummingbirds and butterflies will be attracted to your garden by the tubular flowers that appear in its first year. Lobelia speciosa has a long, summer bloom period. It grows to a height of 22-28 inches, thriving in wet locations.
Starship Scarlet Bronze Leaf™ has a growth habit that is upright, sturdy, and bushy. It has no serious insect or disease problems; deer and rabbits avoid eating it. Native to North America, it is well adapted as a garden plant. The name, Lobelia, honors Matthias de l'Obel (1538-1616), a French physician and botanist. Use this plant in the role of ‘filler’ in combination pots or mass them in the border where they will add late summer height and color. Use them in difficult wet locations, and in rain gardens. They make beautiful cut flowers – cut them when the flowers are almost open.
Starship Scarlet Bronze Leaf Cardinal Flower Care
This is an easy-care plant that thrives in rich, medium-to-wet soils of any texture. Plant it on a cloudy day, or in the late afternoon, to reduce transplant shock. Dig a hole large enough to accommodate the root ball. Unpot the plant, gently loosening the roots to encourage good growth. Plant with the top of the root ball even with the surrounding soil. Water thoroughly and mulch lightly. You may apply a light fertilizer after new growth appears. Locate your Cardinal Flower in part sun to sun. When planting it in dry soil, site it in a location with part shade (4 to 6 hours of direct sunlight).
Deadheading spent flowers will encourage reblooming. In cold climates before winter, prune the dead stalks and stems and add mulch to protect the root system. Starship Scarlet Bronze Leaf™ is stunning in containers, just do not let them dry out completely, making sure they have adequate drainage. In mixed containers, pair them with other moisture-loving plants.
Starship Scarlet Bronze Leaf Cardinal Flower Spacing
Companion plants for this lobelia are ornamental grasses and coreopsis. Space your plants 16-22 inches apart from center to center.
Starship Scarlet Bronze Leaf Cardinal Flower Information
USDA Hardiness Zones: 6-10 |
Plant Type: Perennial |
Sunlight Exposure: Partial Sun to Full Sun |
Mature Height: 22 - 28 Inches |
Mature Width: 16 - 22 Inches |
Plant Spacing: 16 - 22 Inches |
Growth Habit: Upright |
Flower Color(s): Red |
Flower Shade: Red Shades |
Seasonal Interest: Mid Summer Late Summer Early Fall |
Foliage Type: Herbaceous |
Foliage Color(s): Green, Bronze |
Attracts: Bees, Butterflies, Hummingbirds |
Resists: Deer, Rabbits |
Features: Attracts Pollinators, Low Maintenance, Native to North America |
Uses: Border Plant Mass Planting |
Plant Brand: Proven Winners |
Botanical/Scientific Name: Lobelia speciosa 'Scarlet Bronze Leaf' |
- SKU:
- LOBSC
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Arrival Guarantee
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
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Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.