
Black Truffle (Cardinal Flower) - Lobelia cardinalis
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Hummingbirds find Black Truffle (Lobelia cardinalis) highly attractive. Its foliage is a stunning deep purple to black, yet the leaves are green at the same time! This Lobelia looks great in any garden, but it looks especially great surrounded by lime green foliage.
- Average mature height: Low-growing (up to 48 inches)
- Light: Full to part sun
- Water: Average watering needs. Do not overwater.
- Zones: 5-8

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!