North America Native Plant

Purple Morning-glory

Botanical name: Ipomoea capillacea

USDA symbol: IPCA2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Convolvulus capillaceus Kunth (COCA28)  âš˜  Ipomoea muricata Cav., non (L.) Jacq. (IPMU4)   

Purple Morning-Glory: A Native Southwestern Charmer for Your Garden If you’re looking to add a splash of purple magic to your southwestern garden, meet the purple morning-glory (Ipomoea capillacea) – a delightful native vine that’s been quietly beautifying the American Southwest long before exotic morning glories became garden center favorites. ...

Purple Morning-Glory: A Native Southwestern Charmer for Your Garden

If you’re looking to add a splash of purple magic to your southwestern garden, meet the purple morning-glory (Ipomoea capillacea) – a delightful native vine that’s been quietly beautifying the American Southwest long before exotic morning glories became garden center favorites. This perennial charmer offers all the classic morning glory appeal while supporting local ecosystems and thriving in challenging conditions that might make other plants throw in the trowel.

What Makes Purple Morning-Glory Special?

Purple morning-glory is a true southwestern native, calling Alabama, Arizona, New Mexico, and Texas home. Unlike some of its more aggressive cousins, this species has earned its place in the landscape through centuries of adaptation to local conditions. As a perennial forb – that’s garden-speak for a non-woody plant that comes back year after year – it offers the permanence busy gardeners crave without the fuss of replanting annually.

The plant produces the classic funnel-shaped flowers you’d expect from the morning glory family, displaying lovely purple to pink blooms that open with the morning sun. Its climbing or trailing growth habit makes it incredibly versatile in the garden, whether you need a ground cover to fill in bare spots or a vine to soften a fence or trellis.

Why Choose This Native Over Exotic Morning Glories?

Here’s where purple morning-glory really shines – it’s perfectly adapted to southwestern growing conditions. While imported morning glories might struggle with intense heat, irregular rainfall, and alkaline soils, this native species takes these challenges in stride. Plus, you’ll be supporting local wildlife that have co-evolved with this plant over thousands of years.

  • Exceptional drought tolerance once established
  • Supports native pollinators including bees, butterflies, and hummingbirds
  • Low maintenance requirements
  • Perennial growth means it returns year after year
  • Naturally adapted to local soil and climate conditions

Growing Conditions and Care

Purple morning-glory is refreshingly undemanding, which makes it perfect for both beginning gardeners and those looking to reduce their garden maintenance workload. This plant thrives in full sun to partial shade and shows remarkable adaptability to various soil types, as long as drainage is adequate.

The key to success with purple morning-glory is thinking like the plant – it’s adapted to the feast-or-famine water cycles of the Southwest. Provide regular water during establishment (typically the first growing season), then step back and let nature take over. Overwatering established plants can actually cause more problems than drought.

Planting and Establishment Tips

Spring planting gives purple morning-glory the best start, allowing roots to establish before summer heat arrives. Choose a location with good air circulation and avoid areas where water tends to pool after rain or irrigation.

  • Plant after the last frost in spring
  • Ensure well-draining soil – amend heavy clay if necessary
  • Water regularly the first year, then reduce frequency
  • Provide support structures for climbing growth if desired
  • Allow some flowers to set seed for natural propagation

Landscape Design Ideas

Purple morning-glory works beautifully in xerophytic gardens, native plant landscapes, and naturalized areas. Its trailing habit makes it excellent for cascading over retaining walls or filling in slopes where erosion control is needed. When grown as a climber, it can provide seasonal screening or soften hard architectural elements.

Consider pairing it with other southwestern natives like desert marigold, brittlebush, or native grasses for a cohesive, low-water landscape that celebrates regional plant communities.

The Bottom Line

Purple morning-glory proves that native plants can be both beautiful and practical. This southwestern gem offers classic morning glory charm with the reliability that comes from choosing plants adapted to your local conditions. Whether you’re creating a water-wise landscape, supporting native wildlife, or simply want a low-maintenance perennial that delivers consistent beauty, purple morning-glory deserves serious consideration for your garden palette.

Purple Morning-glory

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Solanales

Family

Convolvulaceae Juss. - Morning-glory family

Genus

Ipomoea L. - morning-glory

Species

Ipomoea capillacea (Kunth) G. Don - purple morning-glory

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA