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When Does Morning Glory Bloom [Reblooming Guide]

Ever wondered about when does Morning Glory bloom? The name has it all!

The temperature and light-sensitive flowers of Morning Glory unfurl in the morning. Especially predominant during the summer and fall months around the U.S.

Apart from the growing seasons, adequate sunlight, temperature fluctuations, plant health, and species have much to do with the blooming duration.

Is Morning Glory Annual or Perennial?

Morning Glory is an umbrella term that includes more than a thousand species under the ‘Ipomoea’ genus with possible variation in characteristics.

While most of the Morning Glory plants are grown as annuals, there are some perennial species as well.

For instance, Ipomoea purpurea, the common Morning Glory, is an annual vine.

Within a growing season, it completes its lifecycle from seedlings to producing bell-shaped flowers with cordate leaves, setting seeds, and dying off.

However, the perennials Blue Dawn flower (Ipomoea indica) and Heavenly Blue (Ipomoea tricolor), even when they die back during the winter months, regrow from their roots and tuber in the following spring. 

Basically, the perennials are long-lived and can persist for multiple years under the right growing conditions, unlike the annuals that demand replanting each year. 

When Does Morning Glory Bloom?

Gardeners are mostly into the Morning Glory for the funnel-shaped flower showcasing different hues from pink to purple to magenta or white. 

Once you plant this tropical shrub, the vining plant only takes 2-4 months to produce the blooms.

Generally, the best time to witness the flowers is in the summer till the first fall frost, which is from May to September. But the bloom typically opens in the morning, hence the name ‘Morning Glory.’

Either in the ground or in a hanging basket, the blooming duration of each flower is relatively short, lasting for only a day. 

As the day progresses, the flower closes, fades, withers, and drops eventually the following day.

Needless to worry, the vine continues producing many other blooms throughout its growing seasons.

And due to the prolonged blooming period, Morning Glory is one of the few plants flowering from Zone 2 to Zone 11.

Tips to Encourage Morning Glory to Bloom

Follow the tips below to help your Morning Glory bloom to its fullest.

  • Morning Glory is a heliophile, so place them under bright direct sunlight for at least six to eight hours, especially for better blooms. Make sure the temperature is not below 45°F as they are sensitive to cold and snow.
  • Avoid the use of rich soil. Rather plant the Morning Glory in well-draining soil with slightly acidic to neutral pH (6.0 to 7.0).
  • Although drought tolerant, ensure consistent moisture by deeply watering the plant once or twice a week. For potted plants, bottom water them to allow adequate soil moisture.
  • Apply a balanced, slow-release fertilizer at the beginning of the growing season to provide nutrients. 
  • Do not use excessive nitrogen fertilizer during the blooming season, as it promotes leafy growth at the expense of flowers.
  • Pinch the growing tips regularly to stimulate lateral growth and the formation of more flower buds.
  • Deadhead the spent flower to divert the energy towards new bloom instead of seed production.
  • Watch out for common garden pests hindering flower production, such as aphids, spider mites, or snails. Use neem oil or pesticides to control the pest infestation.

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Provide trellis or support!

Morning Glories are climbing vines. Providing a trellis or support helps them grow upright and prevents them from sprawling on the ground.

The upright growth also promotes better air circulation and sunlight exposure. Thus, enhancing the quality of blooms.