When to Plant Morning Glories
- Sow morning glory seeds in late spring or early summer, once the ground has warmed to about 64°F (18°C).
- Morning glories are tender annuals, so they are sensitive to cool temperatures and late frosts.
Choosing and Preparing a Planting Site
- Grow morning glories in a sunny spot. They need a lot of sun to bloom their best!
- Plant in moderately fertile, well-drained soil.
- Choose a site that is sheltered from strong, drying winds.
- Give them a fence, lattice, or trellis to climb.
How to Plant Morning Glories
- Germination rates are improved by filing down the seeds just enough to break the outer coat, 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.
Growing Morning Glories
- Apply a balanced liquid fertilizer after planting. Do not over-fertilize, 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, just pinch off old flowers before they turn into seedpods. This can also encourage the plant to keep producing more flowers.