Smooth Heliotrope
Heliotropium curassavicum
Last reviewed: September 2026
Smooth Heliotrope is a low water forb that thrives in full sun, often found on salty flats, coastal dunes and disturbed low ground. It produces small white flowers from June through October and draws bees, butterflies and beetles.

Smooth Heliotrope (Heliotropium curassavicum) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
The USDA PLANTS Database (opens in new tab) does not flag Smooth Heliotrope as toxic to livestock.
Light
full sun
Water
low
Size
4"–16" H × 8"–24" W
Bloom
Jun, Jul, Aug, Sep, Oct
Native to
AL, AR, AZ, CA and 28 more states
Pollinators
bees, butterflies, beetles
Before you buy
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Smooth heliotrope is a low-growing perennial with small white or pale blue flowers that bloom from summer through fall. This drought-tolerant native forms spreading mats and thrives in sunny, dry conditions with minimal care.
Growing Smooth Heliotrope
Grow Smooth Heliotrope in full sun and low water. Mature plants reach 4 to 16 inches tall and spread 8 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Smooth Heliotrope takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Spreading mat habit appears weedy
- Small flowers lack visual impact for formal landscapes
- Common name includes 'weed-like' associations
Wildlife value
The long blooming period provides nectar for bees, butterflies, and beetles from June through October. Its extended flowering season makes it valuable for supporting pollinators during late summer and fall when fewer plants are in bloom.
Common questions
- What growing conditions does Smooth Heliotrope prefer?
- Smooth Heliotrope does best in full sun with low water, commonly rooting in alkaline or saline soils near salt flats, coastal margins and low disturbed ground.
- When does Smooth Heliotrope bloom?
- It flowers from June through October, producing small white blooms clustered along curled, one sided spikes.
- What pollinators visit Smooth Heliotrope?
- Bees, butterflies and beetles are the main visitors to its small white flowers during the summer and early fall bloom period.
- Does Smooth Heliotrope need much water once established?
- No, established plants handle dry conditions well and are often found in sandy or saline soils where available moisture is limited.
- Is Smooth Heliotrope toxic to dogs?
- Smooth Heliotrope is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is Smooth Heliotrope toxic to cats?
- Smooth Heliotrope is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- Is Smooth Heliotrope toxic to livestock?
- The USDA PLANTS Database does not flag Smooth Heliotrope as toxic to livestock.
- Is Smooth Heliotrope HOA-friendly?
- Smooth Heliotrope takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Smooth Heliotrope? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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