North America Native Plant

Saltmarsh Morning-glory

Botanical name: Ipomoea sagittata

USDA symbol: IPSA

Life cycle: perennial

Habit: vine

Native status: Native to the lower 48 states  

Saltmarsh Morning-Glory: A Coastal Native That Brings Wild Beauty to Your Garden If you’re looking for a tough, beautiful native plant that can handle challenging coastal conditions while providing stunning blooms, saltmarsh morning-glory (Ipomoea sagittata) might be exactly what your garden needs. This southeastern native brings a touch of wild ...

Saltmarsh Morning-Glory: A Coastal Native That Brings Wild Beauty to Your Garden

If you’re looking for a tough, beautiful native plant that can handle challenging coastal conditions while providing stunning blooms, saltmarsh morning-glory (Ipomoea sagittata) might be exactly what your garden needs. This southeastern native brings a touch of wild coastal charm wherever it grows, and it’s surprisingly adaptable for such a specialized plant.

Meet the Saltmarsh Morning-Glory

Saltmarsh morning-glory is a perennial herbaceous vine that’s native to the southeastern United States. As a member of the morning-glory family, it produces those classic funnel-shaped flowers that open in the morning light, but this species has evolved specifically for life in coastal and wetland environments. Don’t let its delicate appearance fool you – this plant is tough as nails!

Where You’ll Find It Growing Wild

This native beauty calls the southeastern coastal states home, naturally occurring in Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, and Texas. You’ll typically find it thriving in salt marshes, coastal wetlands, and areas where few other plants dare to grow.

What Makes It Special

The saltmarsh morning-glory stands out with its distinctive arrow-shaped leaves and lovely pink to purple trumpet-shaped flowers. As a trailing and climbing vine, it creates beautiful groundcover or can scramble up supports, making it incredibly versatile in the landscape. The flowers are particularly striking and appear throughout the growing season, providing consistent color and interest.

Why Your Garden (and Local Wildlife) Will Love It

There are several compelling reasons to consider adding saltmarsh morning-glory to your landscape:

  • Pollinator magnet: The flowers attract bees, butterflies, and other beneficial pollinators
  • Low maintenance: Once established, it requires minimal care
  • Erosion control: Excellent for stabilizing soil in challenging areas
  • Salt tolerance: Perfect for coastal gardens where salt spray is an issue
  • Wildlife support: Provides habitat and food sources for native creatures
  • Extended bloom time: Flowers from spring through fall in favorable conditions

Perfect Garden Settings

Saltmarsh morning-glory shines in several types of garden situations:

  • Coastal gardens: Naturally suited for seaside landscapes
  • Rain gardens: Handles wet conditions beautifully
  • Wetland gardens: Thrives in boggy or marsh-like conditions
  • Wildlife gardens: Excellent for supporting native ecosystems
  • Naturalized areas: Perfect for low-maintenance, wild-looking spaces

Growing Conditions and Care

The good news is that saltmarsh morning-glory is quite forgiving once you understand its preferences. It’s classified as a facultative wetland plant, meaning it usually grows in wetlands but can adapt to drier conditions too.

Light requirements: Full sun to partial shade, though it blooms best with plenty of sunlight

Soil needs: Prefers moist to wet soils and can handle poor drainage that would kill other plants. It’s also remarkably tolerant of salty conditions.

Hardiness: Suitable for USDA zones 8-10, making it perfect for southern and coastal gardens

Water: Loves consistent moisture but can tolerate some drought once established

Planting and Care Tips

Getting saltmarsh morning-glory established in your garden is relatively straightforward:

  • Timing: Plant in spring after the last frost
  • Spacing: Give it room to spread – it can be quite vigorous
  • Mulching: A light layer of mulch helps retain moisture
  • Fertilizing: Generally unnecessary; it’s adapted to nutrient-poor conditions
  • Pruning: Cut back in late winter or early spring if needed

A Word of Caution (The Good Kind)

While saltmarsh morning-glory isn’t invasive, it can be an enthusiastic spreader in ideal conditions. This makes it perfect for areas where you want coverage, but you might want to contain it if you have a more formal garden design. Think of it as nature’s way of ensuring this valuable plant can do its job of stabilizing soil and supporting wildlife.

Is Saltmarsh Morning-Glory Right for Your Garden?

If you have a coastal or wetland garden, areas with challenging wet conditions, or simply want to support native wildlife while enjoying beautiful blooms, saltmarsh morning-glory could be an excellent choice. It’s particularly valuable for gardeners dealing with salt spray, poor drainage, or erosion issues – problems that would challenge many other ornamental plants.

This native vine offers the perfect combination of beauty, toughness, and ecological value. Plus, there’s something deeply satisfying about growing a plant that’s perfectly adapted to your local environment and has been thriving in your region for thousands of years. Your garden – and your local ecosystem – will thank you for it!

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Eastern Mountains and Piedmont

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Great Plains

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Saltmarsh 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 sagittata Poir. - saltmarsh 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