How to Grow Morning Glory Heavenly Blue
Ipomoea tricolor 'Heavenly Blue'
Your complete guide to growing Morning Glory Heavenly Blue.
📷 Wikimedia CommonsWhen to Plant Morning Glory Heavenly Blue
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | May – June | July – September | — |
| Zone 2 | April – May | June – August | — |
| Zone 3 | April – May | June – August | — |
| Zone 4 | March – April | June – July | — |
| Zone 5 | March – April | May – July | — |
| Zone 6 | March – April | May – July | — |
| Zone 7 | February – March | April – June | — |
| Zone 8 | February – March | April – June | — |
| Zone 9 | January – February | March – May | — |
| Zone 10 | January | February – April | — |
| Zone 11 | January | January – March | — |
| Zone 12 | January | January – March | — |
| Zone 13 | January | January – March | — |
Companion Plants for Morning Glory Heavenly Blue
✓ Good companions
Compatible climbing vine with similar care needs, extends flowering season
Attracts pollinators and beneficial insects, complementary flowering periods
Repels nematodes and aphids while attracting beneficial insects
Acts as trap crop for aphids and cucumber beetles, protecting morning glories
Provides sturdy support structure for morning glory vines to climb
Ground cover that attracts beneficial insects and doesn't compete for climbing space
Similar growing conditions and climbing habits, both fix nitrogen in soil
Attracts butterflies and beneficial insects, similar water and sun requirements
✗ Keep away from
Produces juglone toxin that inhibits growth and can kill morning glories
Allelopathic compounds in leaves and roots inhibit germination and growth of nearby plants
Aggressive spreading habit competes for nutrients and space, can overtake morning glory roots
