Delphinium vs Morning Glory

Side-by-side plant comparison — which is right for your garden?

Delphinium

Delphinium elatum

Ranunculaceae · flowers

Deer ResistantHigh Maintenance

Morning Glory

Ipomoea tricolor

Convolvulaceae · vines

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Delphinium (Zones 3-7)

Morning Glory (Zones 2-11)

Overlap: Both grow in zones 3–7

Detailed Comparison

Feature	Delphinium	Morning Glory
Scientific Name	Delphinium elatum	Ipomoea tricolor
Family	Ranunculaceae	Convolvulaceae
Category	flowers	vines
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Well-drained
Height	6'	10'
Spread	2'	2'
Bloom Season	Early Summer	Summer-Fall
Bloom Color	Blue, Purple, White, Pink	Blue, Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Europe, Asia	Central America
Maintenance	High	Low

Special Traits

Delphinium

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Morning Glory

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Delphinium

✓Stake tall varieties.
✓Cut back after first bloom for possible rebloom.
✓Needs cool summers — struggles in heat.
✓Slugs love young growth.
✓All parts are toxic.

Morning Glory

✓Nick or soak seeds overnight for faster germination.
✓Provide sturdy support.
✓Self-seeds prolifically — can become invasive.
✓Full sun is essential for abundant blooms.

Which Plant Is Right for Your Garden?

Choose Delphinium if you don't mind high maintenance, and want deer resistance. It thrives in full sun with medium water in zones 3–7.

Choose Morning Glory if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 3–7. They share similar sun requirements (full sun), making them potential garden companions.

View DelphiniumProfile →View Morning GloryProfile →

Frequently Asked Questions

Can Delphinium and Morning Glory grow in the same hardiness zone?

Delphinium grows in USDA zones 3-7, while Morning Glory grows in zones 2-11. Both plants can grow together in zones 3 through 7.

Do Delphinium and Morning Glory have the same sun and water needs?

Delphinium needs full sun and medium water, while Morning Glory needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Delphinium or Morning Glory?

Morning Glory grows taller at 10' compared to Delphinium at 6'. Morning Glory spreads 2' while Delphinium spreads 2'.

Are Delphinium and Morning Glory deer resistant?

Yes, both Delphinium and Morning Glory are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Delphinium or Morning Glory?

Delphinium has high maintenance while Morning Glory has low maintenance. Morning Glory may be easier for beginning gardeners to manage.

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Detailed Comparison

Feature	Delphinium	Morning Glory
Scientific Name	Delphinium elatum	Ipomoea tricolor
Family	Ranunculaceae	Convolvulaceae
Category	flowers	vines
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Well-drained
Height	6'	10'
Spread	2'	2'
Bloom Season	Early Summer	Summer-Fall
Bloom Color	Blue, Purple, White, Pink	Blue, Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Europe, Asia	Central America
Maintenance	High	Low

Care Tips

Delphinium

✓Stake tall varieties.
✓Cut back after first bloom for possible rebloom.
✓Needs cool summers — struggles in heat.
✓Slugs love young growth.
✓All parts are toxic.

Morning Glory

✓Nick or soak seeds overnight for faster germination.
✓Provide sturdy support.
✓Self-seeds prolifically — can become invasive.
✓Full sun is essential for abundant blooms.

Which Plant Is Right for Your Garden?

Choose Delphinium if you don't mind high maintenance, and want deer resistance. It thrives in full sun with medium water in zones 3–7.

Choose Morning Glory if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 3–7. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Delphinium and Morning Glory grow in the same hardiness zone?

Delphinium grows in USDA zones 3-7, while Morning Glory grows in zones 2-11. Both plants can grow together in zones 3 through 7.

Do Delphinium and Morning Glory have the same sun and water needs?

Delphinium needs full sun and medium water, while Morning Glory needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Delphinium or Morning Glory?

Morning Glory grows taller at 10' compared to Delphinium at 6'. Morning Glory spreads 2' while Delphinium spreads 2'.

Are Delphinium and Morning Glory deer resistant?

Yes, both Delphinium and Morning Glory are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Delphinium or Morning Glory?

Delphinium has high maintenance while Morning Glory has low maintenance. Morning Glory may be easier for beginning gardeners to manage.