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Cardinal Flower 'Starship™ Blue' {1-Gallon pot}
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Lobelia speciosa 'Starship™ Blue' (AKA Lobelia × speciosa 'Starship™ Blue', Hybrid Lobelia 'Starship™ Blue')
Pronunciation: loh-BEE-lee-uh spee-see-OH-suh STAR-ship BLOO
Product: 201798
Shipping description: This product cannot be shipped to ID, and cannot be shipped from early May to early October to AZ, CA, MT, NV, OR, UT, or WA.
NOTE: Shipments to AZ, CA, MT, NV, OR, UT, or WA require 7-10 days to prepare the required paperwork.

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1 - 9: $31.47 each10 - 99: $29.90 each
100+: $28.32 each
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Content note: AI-assisted: Some images, descriptions, or plant specifications on this page may have been created or revised with the assistance of AI. This content is checked, but inaccuracies may remain.

Please also note: Flower and foliage colors can vary considerably depending on climate, season, sunlight, myriad other growing conditions, and photography. If this plant is new to you, or you would like a broader sense of its natural color range, please view additional photographs [here], and feel free to contact us with questions.
Plant Lobelia speciosa 'Starship™ Blue' where you want bold, upright spikes of rich violet-blue flowers from midsummer into fall. This compact perennial adds vertical color over green foliage and looks great in borders, rain gardens, and other consistently moist sites. Pollinators quickly find it, and you can enjoy steady garden activity as blooms draw bees, butterflies, and hummingbirds.

For best performance, give your plant sun to part shade. In full sun, keep the soil evenly moist; in hotter or drier spots, a little afternoon shade can help reduce stress. Plant in average to rich soil that stays moist but drains reasonably well, and water during dry spells so the root zone never fully dries out. Your plant will typically reach about 20-24 inches tall, making it easy to tuck into mixed beds without overwhelming nearby perennials.

Set plants where the flower spikes can rise above companions, and use it to bridge midsummer color into early fall. Keep a light layer of mulch to moderate soil moisture and temperature, and avoid letting the crown stay dry for long periods. If you trim spent spikes, you can keep the planting tidy and encourage a neat look through the season. Leave the base in place over winter and cut back old growth when new shoots start in spring.

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