How to Grow and Care for Morning Glories
About Morning Glory
Morning Glory (Ipomoea purpurea) grows 6 to 10 feet tall and is hardy in USDA zones 2 to 11. It grows best in full sun to part sun with medium water.
Common Morning Glory, scientifically known as Ipomoea purpurea, is a charming annual vine celebrated for its vibrant trumpet-shaped flowers and vigorous growth. Originating from tropical America, this plant has captivated gardeners with its ability to swiftly climb trellises, fences, and arbors, adding a lush vertical element to gardens. The lovely blooms of the Common Morning Glory can be seen from early summer to the first frost, showcasing a spectrum of colors that primarily include rich blues, purples, and pinks, though white and bi-colored varieties are also prevalent. As a pollinator-friendly plant, it attracts bees, butterflies, and hummingbirds, contributing to the ecological richness of garden landscapes. This versatile climber thrives in full sun and well-drained soil, demonstrating a commendable tolerance to drought conditions once established. However, gardeners should be mindful of its invasive nature, as it can aggressively self-seed and overtake areas if not controlled. Additionally, all parts of the Common Morning Glory contain toxic compounds and should be handled with care, especially in gardens frequented by pets and young children. Despite these challenges, its rapid growth and eye-catching blooms make it a popular choice for ornamental use, particularly in cottage and wildflower gardens where its ability to cover unsightly structures is a valuable asset. To distinguish it from other similar species, one can note the heart-shaped leaves and the distinctive morning opening of its flowers, which close by afternoon, a unique trait that emphasizes the ephemeral beauty of this vigorous vine. Overall, the Common Morning Glory is appreciated for its aesthetic appeal and ease of cultivation, offering gardeners a simple yet stunning way to enhance vertical spaces with bursts of color throughout the growing season.
When to Plant Morning Glories
Sow morning glory seeds outdoors after the last frost, once the soil is warm. Soak or nick the seeds first to speed germination.
How to Plant Morning Glories
To propagate Common Morning Glory, begin by harvesting seeds from mature plants in late summer or early fall. Allow seeds to dry completely before storing them in a cool, dry place until spring. Before sowing, scarify the seeds by gently nicking or sanding them to promote germination. Soak the scarified seeds in water for 24 hours. Directly sow the seeds in well-draining soil after the last frost date, spacing them about 6 to 12 inches apart. Germination typically occurs within one to two weeks. For planting Common Morning Glory, select a location with full sun exposure and well-draining soil. Prepare the planting area by loosening the soil and amending it with organic matter such as compost. Plant seeds directly into the soil, or transplant seedlings if preferred. Ensure proper spacing of 6 to 12 inches apart to allow for vine growth. Provide support structures like trellises or fences to encourage vertical climbing. Water the area sufficiently after planting to settle the soil and promote initial root establishment.
Morning Glory Care
To care for Common Morning Glory, ensure it receives full sunlight, as it thrives in bright conditions. Plant it in well-drained soil, favoring a loamy texture with neutral to slightly acidic pH levels. Water the plant consistently during its growing season, keeping the soil evenly moist but not waterlogged. Mulching helps retain soil moisture and control weeds. Fertilize sparingly; a balanced, water-soluble fertilizer applied once a month during the growing period suffices. Support structures like trellises or fences are essential for its climbing nature. Prune regularly to remove dead or overcrowded growth, encouraging healthy development and blooming. Avoid chemical pesticides; instead, use organic options like neem oil for pest management. Regularly inspect for pests such as aphids, removing them by hand or with gentle water sprays. Proper air circulation around the plant helps prevent fungal infections. By following these guidelines, you will maintain a thriving and vibrant display.
Fertilizing Morning Glories
Common Morning Glory typically thrives without the need for regular fertilization, benefiting from well-drained, moderately fertile soil. If the plant’s growth or flowering seems suboptimal, a light application of a balanced, water-soluble fertilizer can be beneficial at the start of the growing season, when the risk of frost has passed. A mild formulation with an NPK ratio of 10-10-10 is ideal to prevent excessive foliage growth at the expense of flowers. Apply sparingly, as over-fertilization can result in lush, vegetative growth with few blooms. Ensure the soil is moist before application to prevent root burn, and follow the package instructions closely. After this initial feeding, avoid additional fertilization, as Common Morning Glory is generally low-maintenance and excessive nutrients may hinder flowering.
Pruning Morning Glories
Prune Common Morning Glory after the plant has finished flowering, typically in late summer or early fall. This timing encourages healthy growth and bloom production for the next season while preventing unwanted self-seeding. Use clean, sharp pruners to remove dead, damaged, or diseased stems and any tangled or excessively long vines for tidiness and management. Avoid pruning in early spring or during active blooming, as this can reduce flower production and weaken the plant. Be careful not to over-prune; maintain some foliage to support photosynthesis. After pruning, scatter mulch around the base to conserve moisture and suppress weeds. Regular inspection for any necessary touch-up pruning through the growing season can also keep the plant healthy and visually appealing.
Morning Glory Pests and Diseases
Common Morning Glory is susceptible to several pests and diseases. Aphids and spider mites are frequent insect pests that feed on the plant’s leaves, causing yellowing and deformation. Control these insects by using insecticidal soap or neem oil, applied according to the manufacturer’s instructions. Leaf miners, which create winding trails on leaves, can be managed through the removal of affected leaves and the use of neem oil. Powdery mildew, a fungal disease characterized by white patches on leaves, thrives in humid conditions. Increase air circulation and remove heavily infected foliage to manage this disease. For severe cases, apply a fungicide labeled for powdery mildew. Another fungal concern is rust, which presents as orange-red pustules primarily on the undersides of leaves; treat this with appropriate fungicides after removing and discarding severely infected leaves. Ensure the plant has proper spacing and sufficient light to reduce humidity and promote healthy growth. Regular monitoring and early intervention are key to managing these common issues, thereby maintaining the health and vigor of Common Morning Glory.
Are Morning Glories Toxic to Cats and Dogs?
Yes. The ASPCA lists morning glory as toxic to dogs, cats and horses. The seeds are the most toxic part. If you think a pet has eaten a toxic plant, call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435.
Morning Glory FAQs
Do morning glories come back every year?
Morning glories are annuals but reseed so readily that they often return on their own, sometimes aggressively.
Why are my morning glories not blooming?
Too much nitrogen fertilizer or rich soil produces leaves instead of flowers. Morning glories bloom best in lean soil and full sun.
Do morning glories need a trellis?
Yes. The vines climb by twining and need a fence, trellis or string to grow on.
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