Dahlia vs Morning Glory

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

Dahlia

Dahlia pinnata

Asteraceae · flowers

EdibleMedium Maintenance

Morning Glory

Ipomoea tricolor

Convolvulaceae · vines

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Dahlia (Zones 8-11)

Morning Glory (Zones 2-11)

Overlap: Both grow in zones 8–11

Detailed Comparison

Feature	Dahlia	Morning Glory
Scientific Name	Dahlia pinnata	Ipomoea tricolor
Family	Asteraceae	Convolvulaceae
Category	flowers	vines
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Well-drained
Height	5'	10'
Spread	2'	2'
Bloom Season	Summer-Fall	Summer-Fall
Bloom Color	Mixed	Blue, Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Mexico, Central America	Central America
Maintenance	Medium	Low

Special Traits

Dahlia

Yes — EdibleNo — Deer ResistantNo — Drought Tolerant

Morning Glory

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Dahlia

✓Dig tubers after first frost in cold climates.
✓Pinch growing tips for bushier plants.
✓Provide support for tall varieties.
✓Fertilize regularly.

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 Dahlia if you don't mind medium maintenance. It thrives in full sun with medium water in zones 8–11.

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 8–11. They share similar sun requirements (full sun), making them potential garden companions.

View DahliaProfile →View Morning GloryProfile →

Frequently Asked Questions

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

Dahlia grows in USDA zones 8-11, while Morning Glory grows in zones 2-11. Both plants can grow together in zones 8 through 11.

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

Dahlia 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, Dahlia or Morning Glory?

Morning Glory grows taller at 10' compared to Dahlia at 5'. Morning Glory spreads 2' while Dahlia spreads 2'.

Are Dahlia and Morning Glory deer resistant?

Morning Glory is deer resistant, but Dahlia is not. If deer are a concern, Morning Glory is the better choice, or protect Dahlia with fencing.

Which is easier to maintain, Dahlia or Morning Glory?

Dahlia has medium maintenance while Morning Glory has low maintenance. Morning Glory may be easier for beginning gardeners to manage.

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Detailed Comparison

Feature	Dahlia	Morning Glory
Scientific Name	Dahlia pinnata	Ipomoea tricolor
Family	Asteraceae	Convolvulaceae
Category	flowers	vines
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Well-drained
Height	5'	10'
Spread	2'	2'
Bloom Season	Summer-Fall	Summer-Fall
Bloom Color	Mixed	Blue, Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Mexico, Central America	Central America
Maintenance	Medium	Low

Care Tips

Dahlia

✓Dig tubers after first frost in cold climates.
✓Pinch growing tips for bushier plants.
✓Provide support for tall varieties.
✓Fertilize regularly.

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 Dahlia if you don't mind medium maintenance. It thrives in full sun with medium water in zones 8–11.

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 8–11. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

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

Dahlia grows in USDA zones 8-11, while Morning Glory grows in zones 2-11. Both plants can grow together in zones 8 through 11.

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

Dahlia 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, Dahlia or Morning Glory?

Morning Glory grows taller at 10' compared to Dahlia at 5'. Morning Glory spreads 2' while Dahlia spreads 2'.

Are Dahlia and Morning Glory deer resistant?

Morning Glory is deer resistant, but Dahlia is not. If deer are a concern, Morning Glory is the better choice, or protect Dahlia with fencing.

Which is easier to maintain, Dahlia or Morning Glory?

Dahlia has medium maintenance while Morning Glory has low maintenance. Morning Glory may be easier for beginning gardeners to manage.