How to Grow Dwarf Morning Glory
Convolvulus tricolor
Hardy Cool Season
Dwarf Morning Glory is a compact, bushy hardy annual reaching 30-40 cm. Sow direct in a sunny spot from spring; thin to 25 cm apart. Its trumpet flowers — blue outer zone, white middle, yellow centre — open in sun and close at night. No staking needed. Deadhead regularly to keep blooms coming from early summer through autumn. Excellent for borders, containers, and rockeries.
In your Leaftide garden 
- Hardiness
- Hardy
- Season
- Cool Season
- Spacing
- 25 cm
- Height
- 40 cm
- Sow depth
- 0.5 cm
- Min. soil temperature
- 7°C+
- Start from
- Seed
- Light
- Full sun
- Water
- Moderate
When to Start
Direct sow outdoors as soon as soil reaches 7°C — typically early to mid spring. Hardy enough to tolerate light frosts.
Don't know your frost date? Find it here →
Growth Stages
Sow seeds
Day 0 Germination
~10 days Flowering
~50 days Seed to harvest ~50 days
Approximate days from start
Care Essentials
- Apply a balanced liquid feed once when plants reach final position. Avoid high-nitrogen feeds which promote foliage over flowers.
- Flowers open fully in sunshine and close at night or in overcast conditions — perfectly normal. Sow direct where they are to grow; they dislike root disturbance. Hardy annual, can be sown in succession from spring through early summer for continuous colour.
Growing Conditions
- Min. soil temperature
- 7°C+
- Germination temperature
- 12–18°C
Don't know your frost date? Find it here
Spacing & Planting
| Plant spacing | 25 cm |
| Row spacing | 30 cm |
| Sow depth | 0.5 cm |
| Mature height | 40 cm |
| Mature spread | 30 cm |
Growing Conditions
| Min. soil temperature | 7°C |
| Germination temperature | 12–18°C |
| Base growth temperature | 5°C |
| Photoperiod sensitivity | day neutral |
Frequently Asked Questions
- How far apart should I plant Dwarf Morning Glory?
- Plant Dwarf Morning Glory 25cm apart with 30cm between rows.
- Is Dwarf Morning Glory frost hardy?
- Dwarf Morning Glory is classified as Hardy.