Morning Glory Growing Guide
Growing Morning Glory is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Flower
Sun Exposure
Full Sun
Frost Tolerance
Frost Tender
Cold Hardiness
Survives to 2°C
Plant Family
Convolvulaceae
Growing Season
Warm Season
Plant Lifecycle
Annual
Also grows well as
How to Start It
★ Recommended for beginners
Nick each hard seed and soak overnight, then sow about 1cm deep once the soil is warm and frost has passed — they grow rapidly and resent root disturbance.
A fast, exuberant annual climber that covers a fence, trellis or arch in a single season, opening fresh trumpet flowers each morning (they close by afternoon). The hard seeds germinate much faster if you nick the coat with a file and soak them overnight. It loves heat and full sun, self-seeds freely (sometimes too freely — pull unwanted seedlings), and asks for almost nothing. Note: the seeds are toxic if eaten.
When To Start
First Chance to Plant
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Last Chance to Plant
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When should you plant Morning Glory?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Morning Glory Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Morning Glory's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
1 cm
Seeding Depth
20 cm
Plant Spacing
30 cm
Row Spacing
Vertical Growing
No.
Succession Planting
No.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 5–10 days
Growing Tips
- 1Give morning glory a hot, sunny spot, a strong support to climb, and lean-ish soil — pampering it just makes leaves, not flowers.
- 2Sow direct after frost for the fastest growth, since it dislikes being transplanted.
- 3Be aware it self-seeds enthusiastically and can pop up for years; that's a bonus or a nuisance depending on your garden.
- 4Keep the toxic seeds away from children and pets.
Seedling Phase
Step 3
Growth & Maturity
300 cm
Mature Height
40 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
When to Pick
Blooms summer to frost; fresh flowers open each morning and close by afternoon
How to Harvest
- 1Almost none — just guide the young stems onto their support to get started, then let it climb.
- 2Don't feed richly (too much nitrogen gives lush leaves and few flowers).
- 3It will scatter seed for next year; snip off seed pods if you want to limit its spread, or leave them to come back on their own.
- 4Pull it out after frost blackens it.
Step 5
Saving Seeds
How to Save Seeds
Let the round seed capsules dry and brown on the vine, then collect the hard black seeds. They store well and come true — expect generous self-sowing too.
Seed Production
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