Growing Zone:
Planting in:
Skip to product information
Blue Porterweed - Stachytarpheta cayennensis
$16.99
+ Free Shipping
There are more than 60 species of Porterweed (Stachytarpheta), low-growing annual herbs that attract butterflies. Because of its prominent blue flowers, the Stachytarpheta cayennensis is our favorite variety. The flowers typically wilt after a day. Fertilize twice a year to encourage continual blooming and cut back occasionally to prompt new growth.
• Average mature height: 3 to 6 feet
• Light: Full to part sun
• Soil: Any. Keep moist during droughts.
• Zones: 9-11
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.
You may also like
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!
