Ipomoea hederacea aka Ivy Leaved Morning Glory

Ipomoea hederacea is extremely easy to grow—so much so that it is considered an invasive weed in 46 U.S. states. Once seeds germinate in warm soil during early summer, the plant grows vigorously with minimal care. It readily self-seeds, often returning year after year without any intervention. The main challenge is actually controlling its spread rather than encouraging growth.

This fast-growing annual vine typically reaches 2-3 meters (6-10 feet) in length during a single growing season. The densely hairy stems climb by twining around supports, fences, or other plants. In favorable conditions with warm temperatures and adequate moisture, some plants can extend even longer. The plant branches occasionally, creating a dense, sprawling mass of foliage.

Propagation is typically done by seed. Soak seeds overnight to soften the hard seed coat, then sow 6mm (1/4 inch) deep after the last frost when soil has warmed. Alternatively, start seeds indoors 4 weeks before the last frost date. Seeds germinate in 2-7 weeks at temperatures of 22-30°C. Cuttings can also be rooted in high humidity conditions at 25-30°C, though seed propagation is more common.

The funnel-shaped flowers measure 2.5-4.5 cm in diameter and appear in clusters of 1-3 from leaf axils. Colors range from blue-violet to purple, pink, or white, typically with distinctive white throats. True to the 'morning glory' name, blooms open in the morning on sunny days and last only a few hours before closing. The flowering period extends from mid-summer through fall, providing continuous color for roughly two months.

The funnel-shaped flowers are primarily pollinated by bumblebees and other long-tongued bees, including specialized visitors like the Mallow Bee and Morning Glory Bee. The flower structure with its deep corolla tube is well-adapted for these pollinators. Flowers open in the morning when bees are most active, maximizing pollination opportunities during their brief bloom period.

Ipomoea hederacea grows best outdoors and is hardy as an annual in USDA zones 6-10, dying back with frost but readily self-seeding. In zone 10 and warmer, it may persist as a perennial. The plant requires full sun to partial shade and thrives in warm summer conditions. Provide a trellis, fence, or other support for the vines to climb. Be aware that it is listed as invasive in many regions and may require management to prevent unwanted spread.

This warm-season annual thrives in tropical, subtropical, and temperate climates. Seeds germinate when soil temperatures reach 22-30°C (72-86°F), typically in early summer. The plant grows vigorously through the warm months and dies back with the first frost. In frost-free areas (zone 10+), it may survive as a perennial. For overwintering in colder zones, plants can be brought indoors before frost and returned outdoors after the last spring frost.

Ipomoea hederacea benefits from fertilizing in spring when new growth begins. However, avoid over-fertilizing, as this can promote excessive foliage growth at the expense of flowers. Given its vigorous nature, this plant often thrives even without supplemental feeding.

Pruning can be done year-round but is best performed after flowering or in early winter. As an annual vine, heavy pruning is rarely necessary unless controlling spread. Remove dead or damaged growth as needed. To prevent self-seeding, remove spent flowers before seeds develop. For overwintered plants in containers, prune back in late winter before new spring growth begins.

Several insects feed on this plant's foliage and stems. Tortoise beetles, flea beetles, and long-horned beetles are common leaf-feeders. Various moth caterpillars also consume the foliage. Despite these pests, the plant is robust and rarely suffers significant damage due to its vigorous growth. Birds and mammals rarely consume the seeds or leaves, likely due to the plant's toxic alkaloid content.

In spring, sow seeds after the last frost when soil has warmed, or transplant seedlings started indoors. Through summer, provide consistent moisture and support for climbing. Mulching helps retain soil moisture when the plant is young. In fall, allow flowers to bloom and consider removing seed pods to prevent unwanted spread. The plant dies back with frost. In mild climates (zone 10+), it may overwinter; in colder regions, it can be overwintered indoors in containers.

In traditional Asian medicine, the seeds (known as 'kaladana') have been used for centuries as a purgative, diuretic, anthelmintic, and laxative. Scientific studies have documented antioxidant, antimicrobial, analgesic, and hepatoprotective properties in seed extracts. However, the seeds contain toxic indole alkaloids including lysergol and chanoclavine, making self-medication dangerous. Professional medical supervision is essential, and modern medicinal use is limited due to toxicity concerns.

Ivy Leaved Morning Glory’s native range is Worldwide.

Ivy Leaved Morning Glory should be watered regularly, allowing the soil to dry out between waterings.

Ivy Leaved Morning Glory loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Ivy Leaved Morning Glory thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Ivy Leaved Morning Glory.

The Ivy Leaved Morning Glory does not necessitate supplementary humidity. Plants primarily absorb water through their roots, rather than their leaves. Hence, the most effective way to supply humidity to your plants is by watering the soil.

Ivy Leaved Morning Glory is poisonous if ingested. We suggest keeping this plant out of reach if you have children, cats, or dogs in the home.