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A guide to cultivating flourishing plants
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Morning glories are fast-growing vines that produce large, fragrant flowers. Once established, they will tolerate almost any soil. Before planting outdoors, be prepared to fight the morning glory away from the rest of your garden. These beautiful plants can become an aggressive weed if left unchecked.

Part 1
Part 1 of 3:

Planting Seeds

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  1. Buy packaged seeds, or collect the seed pods from a friend's morning glory plant. As morning glory flowers die, they leave behind round seed pods at the base of the flower stem. The pods are ready to pick when they turn papery and brown, and contain dark brown or black seeds. [1]
    • Morning glories cross-pollinate, meaning that plants grown from seed will not necessarily look much like the parent once they grow. [2]
  2. If planting outdoors, wait until the last frost has passed and the soil has begun to warm. If you'd like to start the morning glories indoors, plan on starting 4–6 weeks before the last frost. [3]
    • Depending on your local conditions you may be able to plant in late summer if you tend to have mild winters. If it gets cold in September, you probably shouldn't plant.
    • If storing seeds over the winter, keep them in a dry, dark location.
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  3. Some morning glory seeds are too hard to germinate quickly without help. Most growers either nick the seed with a nail file, or soak the seed overnight in room temperature water, in order to increase the odds of success. [4] Often, you'll have so many seeds on hand that you can skip this step and accept that not all seeds will germinate.
    • Some gardeners argue that soaking can cause rotting or infection, and that shallow planting in moist soil will produce similar results with less risk.
  4. Morning glories react poorly to transplanting due to their delicate root systems, so it's best to pick one location and stick to it. If planting in an outdoor container, choose one at least 2 ft (0.6m) wide and 3 ft (0.45m) high for best results. If starting the plant indoors, use a 3 inch (7.6cm) peat pot that can be buried in your garden when you want to move the plant outdoors. [5] Morning glories can be directly seeded outside successfully.
  5. Adult morning glories are very tolerant of poor soil conditions, but the seeds need a well-draining growing medium. To achieve this, mix 1 part perlite with 3 parts soil, or mix 1 part salt-free sand with 2 parts soil.
    • Do not mix sand with clay-heavy soil.
    • There's no need to grow these in extra-rich, fertile soil. Rich soil can even lead to fewer flowers in some morning glories, notably "Heavenly Blue" and other Ipomoea tricolor varieties.
  6. Plant each seed in a ½ inch (1.25cm) hole and cover lightly with soil.
    • If planting them directly in a garden plot, spacing depends on the variety's size and on personal preference. Consider planting the seeds 2 inch (5cm) apart, then culling to 6–12 inches (15–30cm) apart once the seedlings reach 3 inches (7.5cm) high. [6] At this height, the seedlings are well-established and less vulnerable to pests.
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Part 2
Part 2 of 3:

Caring for Seedlings

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  1. Morning glories love sunshine, and will only tolerate very light shade. They should receive as much direct sun as possible, especially while the seedlings are young.
    • Keep indoor plants near a south-facing window (or a north-facing window if you live in the Southern Hemisphere).
    • The ideal soil temperature for germination is about 68–86ºF (20–30ºC). [7]
  2. Young morning glories may fail to sprout or die if the soil dries out. Keep the soil moist, but not soggy, and wait for germination within 5–21 days (but usually within a week). [8] The seedlings are less vulnerable once the first true leaves appear. (The first leaves to appear are called cotyledons, and look noticeably different than the true leaves.)
  3. If you started your plants indoors, move them outdoors once the seedlings are well-established and the last frost is past. Morning glories are hardier than most plants, but it's still a good idea to start by moving the container to partial shade. Move the plant to a slightly sunnier location every few days, or back to darker shade if you see wilting or sun scorch.
    • Keep the soil moist during this acclimation period.
  4. Once the seedlings are about 6 inches (15cm) tall, provide a stake or trellis for the vine to climb.
    • Alternatively, plant seedlings in a hanging basket and allow the vines to cascade over the edge.
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Part 3
Part 3 of 3:

Caring for Established Morning Glories

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  1. Adult plants are very tolerant of dry soil, and may not even require watering at all in wet or cool climates. During hot weather, water once or twice a week. [9]
    • Over-watering can lead to excessive vine growth with few flowers.
  2. Give them access to a trellis or arbor for shade, or let them grow on a dead tree or post. They cannot climb flat surfaces, so hang plastic netting in front of a wall or solid fence if you'd like the vines to grow there. Give the vines plenty of space; some varieties can grow 15 feet (4.6m) in a single season.
    • Since most morning glory vines die every year, allowing your morning glory to climb living trees is acceptable as the vines will not harm the tree. (Don't try this in areas with mild winters, which morning glories can survive.)
  3. Fertilize when your morning glory is first planted, then no more than once a month during the growing season. If you fertilize too often, you will encourage foliage instead of blooms.
  4. Since morning glories have few problems with disease, you should find it easy to keep your morning glory plant healthy. Insect problems are also rare, but it's worth the occasional check for aphids and other insects. Your local nursery can help you address the problem if it occurs, usually with an organic pesticide.
  5. Morning glories are prolific and long-lasting bloomers, although they sometimes take a month or two to get started. Each individual flower opens in the morning and dies off before the end of the day. This makes morning glories one of the most interesting and beautiful flowers to decorate your garden.
    • Air temperature will alter the color of the bloom and the length of time it stays open. [10]
  6. Morning glories can survive a mild frost, but in most climates they will die in early winter. Morning glories are aggressive re-seeders, which is good and bad news from the gardener. You won't need to buy any more seeds for next season, but you might discover that your whole garden starts growing vines. Clear away the dead vines promptly to prevent this. New seeds will usually grow from the same spot, but you may gather seeds to plant by hand just in case.
    • In warm climates where morning glories grow as perennials, you can grow new plants from short cuttings instead.
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Expert Q&A

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  • Question
    Are Morning Glories annuals?
    Katie Gohmann
    Professional Gardener
    Katherine Gohmann is a Professional Gardener in Texas. She has been a home gardener and professional gardener since 2008.
    Professional Gardener
    Expert Answer
    For the most part, Morning Glories are annuals. However, some Morning Glories in warmer regions are perennials.
  • Question
    Do you cut the leaves off when winter is near or just leave it alone?
    Katie Gohmann
    Professional Gardener
    Katherine Gohmann is a Professional Gardener in Texas. She has been a home gardener and professional gardener since 2008.
    Professional Gardener
    Expert Answer
    Just leave it. In most places, morning glories will die entirely in the winter and you can just remove them at that time.
  • Question
    Morning glory has taken over the garden and hedges. How can I get rid of them in NC?
    Katie Gohmann
    Professional Gardener
    Katherine Gohmann is a Professional Gardener in Texas. She has been a home gardener and professional gardener since 2008.
    Professional Gardener
    Expert Answer
    Pull the plants out by the roots before they have a chance to set seeds. It will be easiest right after a rain when the soil is very moist.
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      Tips

      • There are hundreds of morning glory varieties, but the main differences are flower appearance and maximum size. These instructions should work for all common morning glories.
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      Warnings

      • Morning glories are aggressive plants that can easily take over a garden. Some varieties are even resistant to pesticides, making removal difficult. Stay vigilant during the early growing season, and uproot unwanted plants immediately.
      • Morning glory seeds are considered poisonous. Swallowing a large number of seeds can result in hallucinations, nausea, and diarrhea. Keep these seeds away from pets and children.
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      About This Article

      Article Summary X

      To grow morning glories, plant each seed in a 1/2 inch deep hole in a part of your garden that gets a lot of sunlight. Then, keep the soil moist until leaves appear. If you started the plants indoors, move them outside after the last frost has passed. Once the plants are around 6 inches tall, give them a stake or trellis to climb up. Finally, since morning glories like dry soil, don't water them if you live in a damp climate. When it's dry, water them once a week. For tips on how to look out for pests and how to clear dead vines in winter, read on!

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      Reader Success Stories

      • Debbie Werner

        May 11, 2016

        "As a child, I always loved the blue morning glories that grew on an archway trellis on the side of our house. I ..." more
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