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Morning Glory Flowers: Planting, Care & How to Grow Beautiful Vines

Two delicate vivid blue and pink flowers of morning glory plant in a a garden in a sunny summer garden, outdoor floral background photographed with soft focus
Photo Credit
Cristina Ionescu/Shutterstock
Botanical Name
Ipomoea tricolor, I. purpurea
Plant Type
Flowers
Sun Exposure
Full Sun
Soil pH
Neutral
Bloom Time
Summer
Fall
Flower Color
Blue
Pink
Purple
Red
White
Hardiness Zone
2
3
4
5
6
7
8
9
10
11
Special Features
Attracts Butterflies
Attracts Songbirds

Learn how to grow morning glories safely, identify annual vs. perennial varieties, and attract butterflies and hummingbirds to your garden

Written By: Catherine Boeckmann Executive Digital Editor and Master Gardener

Want to grow morning glories? This plant, with its romantic tendrils and trumpet-shaped flowers, is beloved by butterflies and hummingbirds. It’s often mistaken for a perennial weed with the same name. Learn how to plant and grow morning glory flowers!

About Morning Glories

NOTE: This guide is NOT about the perennial weed that shares the common name of “morning glory.” That plant is classified as a noxious weed in many states. Read more below. 

Morning glories are tender annuals, so they are sensitive to cool temperatures and late frosts. They bloom from early summer to the first frost of fall. 

Buy Seeds Now

Their fragrant, colorful flowers come in pink, purple-blue, magenta, or white. Pollinators love morning glories’ trumpet-shaped blooms.

Train twining morning glory vines over a pergola or arch, or use them as a dense groundcover. This drought-tolerant plant grows quickly—up to 10 feet in one season—and can self-seed fairly easily. Because of this, you’ll want to choose where you put this plant wisely! Otherwise, you may have more morning glories than you bargained for.

Warning: All morning glory seeds are poisonous, especially in large quantities. Keep them out of reach of children and pets.

Annual Versus Perennial Morning Glories

The attractive annual morning glory (Ipomoea spp.) is often mistaken for its perennial cousin, field bindweed (Convolvulus arvensis), a very troublesome, invasive weed native to Europe and Asia. 

Field bindweed—also called “perennial morning glory” or “creeping jenny”—grows similarly to our annual morning glory but sends out deep, deep roots (up to 9 feet deep!), which are very difficult to get rid of and allow the plant to overwinter in areas where cultivated morning glories could not. 

To tell the difference between the plants, look closely at the leaves, flowers, and vines:

  • The leaves of the annual morning glory are heart-shaped and large (2 or more inches across). Field bindweed leaves are shaped more like an arrowhead and are smaller.
  • Annual morning glory flowers may be pink, white, magenta, blue, purple, or red. Field bindweed flowers only occur in either pink or white, and blooms are much smaller than annual morning glory.
  • Morning glory vines are usually thicker than bindweed vines and typically have small hairs.

In any case, if you come across a plant in your garden that resembles morning glory and you know you didn’t plant it, it’s best to err on the side of caution and treat it as a weed. 

Read Next

Planting

Choose a sunny spot. These plants need a lot of sun to bloom their best! Plant in moderately fertile, well-draining soil to encourage good foliage growth followed by plenty of flowers.

Finally, choose a location that is sheltered from strong, drying winds. Give them a fence, lattice, or trellis to climb so that vines don’t crowd out other ground-level plants.

When to Plant Morning Glories

  • Sow seeds as early as possible after the danger of frost is over.

Purple Morning Glories

How to Plant Morning Glories

  • Germination rates are improved by filing down the seeds just enough to break the outer coat and then soaking them for 24 hours before planting. This encourages them to send out a root (it looks like a little worm).
  • Cover lightly with 1/4 inch of soil. Space seeds about 6 inches apart.
  • Water thoroughly at planting.
  • Seedlings should appear in about a week; some seeds may be stubborn and take 2 or 3 weeks to sprout.

Growing

  • Apply a balanced liquid fertilizer after planting. Do not overfertilize, or the vine may grow more foliage than flowers.
  • Support this climbing plant with structures like trellises, pergolas, or arches.
    • Tip: Morning glories climb by twining their vines around a support, so make sure that whichever type of structure you grow them against has plenty of space for whorling!
  • Morning glories are low maintenance; just be sure to water during particularly dry periods.
  • Mulch to retain moisture and suppress weeds.
  • If you don’t want the plant to reseed itself, pinch off old flowers before they turn into seedpods. This can also encourage the plant to keep producing more flowers. 

Purple morning glory vining over a wooden fence

Types

  • ‘Heavenly Blue’ are the classic morning glories with rich azure flowers and white throats. These plants climb to 12 feet.
  • ‘Scarlett O’Hara’ has bright red flowers with a white throat. It climbs to 15 feet.
  • Here are more recommended morning glory varieties!
'Heavenly Blue' morning glory
‘Heavenly Blue’ morning glory. Photo by Heike Loechel/Wikimedia Commons.

Gardening Products

Pests/Diseases

Morning glories are fast-growing and are rarely bothered by pests or diseases to a significant extent.

Morning Glory Pests and Diseases
Pest/DiseaseTypeSymptomsControl/Prevention
AphidsInsectMisshapen/yellow leaves; distorted flowers; leaf drop; sticky “honeydew” (excretion) on leaves; sooty, black moldKnock off with water spray; apply insecticidal soap; inspect new plants carefully; use slow-release fertilizers; avoid excess nitrogen; encourage aphid predators such as lacewings, ladybugs, spiders
Fusarium wiltFungusPlants wilt (sometimes one-sided) in daytime; later, entire plant wilts/dies; stunting; yellow leaves; poor flowering; roots rot; stem cross-section reveals brown discolorationDestroy infected plants/ roots/surrounding soil (do not compost); remove plant debris regularly; disinfect tools; resistant varieties; avoid excess nitrogen; in acidic soils, raise pH to 7.0; weed; 3- to 5-year rotation
Leaf minersInsectMeandering blisters in leaves caused by tunneling larvaeRemove infested leaves; weed; use row covers; till soil early in season; rotate plantings
Leaf spot (fungal)FungusVaries; leaf spots on lower leaves enlarge and turn brown/black; fuzzy growth or pustules in lesions; disease progresses upward; leaves dieDestroy infected leaves/ severely infected plants (do not compost); remove plant debris regularly; disinfect tools; resistant varieties; good air circulation; avoid overhead watering
RustFungusVaries; orange pustules on undersides of lower leaves/stems; spots on upper leaf surfaces; foliage distorts/ dies/drops; stunting; poor flowering; plants weakenedDestroy infected parts/severely diseased plants; remove plant debris regularly; disinfect tools; resistant varieties; good air circulation; avoid overhead watering; weed

FAQ

Are morning glories annual or perennial? 

Most garden morning glories (Ipomoea spp.) are tender annuals, sensitive to frost. Some are confused with perennial bindweed, which is invasive. 

How do I tell annual morning glories from bindweed

Look at leaves and flowers: 

  • Morning glory leaves are large and heart-shaped; flowers come in pink, purple, magenta, blue, red, or white.
  • Bindweed leaves are smaller and arrowhead-shaped; flowers are small and only pink or white. 

Can morning glory seeds be eaten? 

All morning glory seeds are poisonous, especially in large amounts. Keep them away from children and pets. 

How do I plant morning glories? 

Soak seeds for 24 hours, plant after the last frost in well-draining soil, place in full sun to partial shade, and provide a trellis or support for twining vines. 

How tall do morning glory vines grow?

They can grow 6 to 10 feet in one season if supported with a trellis, pergola, or fence. 

Wit and Wisdom

growing morning glories infographic

Flowers
About The Author
Catherine Boeckmann

Catherine Boeckmann

Executive Digital Editor and Master Gardener

Catherine Boeckmann is the Executive Digital Editor of Almanac.com, the website companion of The Old Farmer's Almanac. She covers gardening, plants, pest control, soil composition, seasonal and moon c...
Read More from Catherine Boeckmann

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Comments

<span>Anonymous</span> Fri, 08/10/2012 - 17:23
How can I lower the nitrogen in my soil,if not for this year for next year.
<a title="View user profile." href="/author/editors">The Editors</a> Mon, 08/13/2012 - 14:56
Mulch with sawdust or bark mulch. These mulches will use the nitrogen in the soil as they break down. Some leftover nitrogen in the soil will leach out through runoff during fall and winter. Plant some vegetables among the morning glories next year. Broccoli, cabbage and corn will use up nitrogen in the soil.
<span>Anonymous</span> Fri, 08/03/2012 - 21:45
Long time admirer first time grower.grew mgs from seed transplantet at about 3"vines are booming but no blooms in site.some in pots with miracle grow potting soil,some in the ground.both growing at the same rate but no buds.I alternated moon flowers and morning glorys 6" apart on two sides of my gazebo.with nylon twine 6" apart look very nice but no blooms.going thru a drought now but water them every other day.what can I do.Keith from ill.
<a title="View user profile." href="/author/editors">The Editors</a> Mon, 08/06/2012 - 11:01
Lack of blooms often means too much nitrogen or the wrong kind of fertilizer--or, nitrogen seeping from nearby lawns. Do not fertilize your morning glories. Also, only water when they the soil is dry to the knuckle. They thrive in poor soil with little care.
<span>Anonymous</span> Tue, 07/31/2012 - 00:23
I have a morning glory plant but it never flowers. It grows like crazy with lots of vines but no flowers . Any suggestions ? Colin
<a title="View user profile." href="/author/editors">The Editors</a> Tue, 07/31/2012 - 14:45
Some morning glories take a little longer to bloom, but lots of vines and lack of flowers often means too much nitrogen or the wrong kind of fertilizer--or, nitrogen seeping from nearby lawns. Do not fertilize morning glories. They thrive in poor soil. Also, make sure they get plenty of sun!
<span>Anonymous</span> Thu, 07/12/2012 - 17:37
FRIENDS LIVE RIGHT ON THE RIVER AND THE BANK IS FULL OF MORNING GLORIES....CAN THESE BE REPLANTED IN YOUR YARD?...THEY ARE GROWING IN THE EDGE OF THE MARSH...THERE ARE HUNDREDS OF THEM BUT LOOK LIKE A BRUSH
<a title="View user profile." href="/author/editors">The Editors</a> Sat, 07/14/2012 - 22:46
Wild morning glories don't transplant well. They don't like their roots disturbed. Also, note that wild morning glories (bindweed) are invasive--and different than the beloved annual Morning Glories that we plant by seed.
<span>Anonymous</span> Mon, 03/05/2012 - 18:56
How deep do the roots go? There is concern if the roots go deep.
<a title="View user profile." href="/author/editors">The Editors</a> Tue, 03/06/2012 - 12:55
There are 2 kinds of morning glories. The ANNUAL is a lovely flower--which you reseed each year. It doesn't have deep roots. Then there is a perennial morning glory which an invasive weed and often chokes out other plants.