
Great Blue Lobelia Cardinal Flower - Lobelia siphilitica
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It's great, it's blue, it's a Great Blue Lobelia! This USA native wildflower commonly beautifies stream banks, marshes, and meadows, and it attracts birds. Great Blue Lobelia is a perennial that goes dormant in the winter. It flowers from late summer to early fall.
• Average mature height: 1 to 3 feet
• Light: full sun to part shade
• Soil: Well-drained
• Water: Medium to wet
• Zones: 4 to 8

Shop with confidence
Your plants are packed with the utmost care, but shipping can be stressful on the little guys.
That's why you have 30 days from the arrival date to experiment with them. If they don't bounce back, you're eligible for a refund.
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We sell baby plants
Wellspring Gardens is the starter plant, AKA “baby plant” shop. We just get you started, so you get all the credit for raising your plants under your green thumb.
How tall are baby plants?
We aim to ship your plants when they’re 3-8” tall, though we often ship them taller than that.
What determines whether I get a 3-, 6-, or even 18-inch-tall plant?
The exact size of the plant we send you is variable on the time of year and how long we've been growing it out.
Honeysuckle Fuel brings out the blooms!