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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)
Photo: (c) Douglas Goldman, some rights reserved (CC BY-SA)

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

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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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.

See all plant problem guides

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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