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Railroad-creeper

Ipomoea cairica

Last reviewed: June 2026

Railroad-creeper (Ipomoea cairica)
Photo: Vengolis / Wikimedia Commons (CC BY 4.0)

Railroad-creeper is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (last reviewed 2026-05-21). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

full sun

Water

medium

Size

120"–360" H × 48"–240" W

Bloom

May, Jun, Jul, Aug, Sep, Oct

Native to

LA

Pollinators

bees, butterflies

Browse plants for this ecoregion

Railroad-creeper is a fast-growing perennial vine that produces purple morning glory-like flowers from late spring through fall. This vigorous climber can quickly cover fences, trellises, or arbors with its heart-shaped leaves and colorful blooms. It thrives in warm, humid conditions with minimal care once established.

In an HOA neighborhood

Railroad-creeper takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Extremely aggressive spreader that can overwhelm other plants
  • Can look unruly without frequent pruning
  • May be considered invasive by some HOAs

Wildlife value

The abundant flowers attract bees and butterflies throughout the long blooming season. Its extended flowering period provides a reliable nectar source from May through October.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Pollinator Patch flags toxic plants like Railroad-creeper and shows pet-safe natives for your ecoregion instead.