Dahlia vs Water Lily

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

Dahlia

Dahlia pinnata

Asteraceae · flowers

EdibleMedium Maintenance

Water Lily

Nymphaea spp.

Nymphaeaceae · aquatic

Deer ResistantMedium Maintenance

Hardiness Zone Range

Dahlia (Zones 8-11)

Water Lily (Zones 3-11)

Overlap: Both grow in zones 8–11

Detailed Comparison

Feature	Dahlia	Water Lily
Scientific Name	Dahlia pinnata	Nymphaea spp.
Family	Asteraceae	Nymphaeaceae
Category	flowers	aquatic
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Aquatic
Soil	Rich, Well-drained	Pond/Water garden
Height	5'	6"
Spread	2'	4'
Bloom Season	Summer-Fall	Summer
Bloom Color	Mixed	White, Pink, Yellow, Red
Growth Rate	Fast	Medium
Native Region	Mexico, Central America	Worldwide
Maintenance	Medium	Medium

Special Traits

Dahlia

Yes — EdibleNo — Deer ResistantNo — Drought Tolerant

Water Lily

No — EdibleYes — Deer ResistantNo — 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.

Water Lily

✓Plant in containers submerged 12-18 inches deep.
✓Needs 6+ hours of direct sun.
✓Fertilize monthly during growing season.
✓Divide when crowded.

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 Water Lily if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with aquatic water in zones 3–11.

Plant them together? Both overlap in zones 8–11. They share similar sun requirements (full sun), making them potential garden companions.

View DahliaProfile →View Water LilyProfile →

Frequently Asked Questions

Can Dahlia and Water Lily grow in the same hardiness zone?

Dahlia grows in USDA zones 8-11, while Water Lily grows in zones 3-11. Both plants can grow together in zones 8 through 11.

Do Dahlia and Water Lily have the same sun and water needs?

Dahlia needs full sun and medium water, while Water Lily needs full sun and aquatic water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Dahlia or Water Lily?

Dahlia grows taller at 5' compared to Water Lily at 6". Dahlia spreads 2' while Water Lily spreads 4'.

Are Dahlia and Water Lily deer resistant?

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

Which is easier to maintain, Dahlia or Water Lily?

Both Dahlia and Water Lily have medium maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.

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Detailed Comparison

Feature	Dahlia	Water Lily
Scientific Name	Dahlia pinnata	Nymphaea spp.
Family	Asteraceae	Nymphaeaceae
Category	flowers	aquatic
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Aquatic
Soil	Rich, Well-drained	Pond/Water garden
Height	5'	6"
Spread	2'	4'
Bloom Season	Summer-Fall	Summer
Bloom Color	Mixed	White, Pink, Yellow, Red
Growth Rate	Fast	Medium
Native Region	Mexico, Central America	Worldwide
Maintenance	Medium	Medium

Care Tips

Dahlia

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

Water Lily

✓Plant in containers submerged 12-18 inches deep.
✓Needs 6+ hours of direct sun.
✓Fertilize monthly during growing season.
✓Divide when crowded.

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 Water Lily if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with aquatic water in zones 3–11.

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 Water Lily grow in the same hardiness zone?

Dahlia grows in USDA zones 8-11, while Water Lily grows in zones 3-11. Both plants can grow together in zones 8 through 11.

Do Dahlia and Water Lily have the same sun and water needs?

Dahlia needs full sun and medium water, while Water Lily needs full sun and aquatic water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Dahlia or Water Lily?

Dahlia grows taller at 5' compared to Water Lily at 6". Dahlia spreads 2' while Water Lily spreads 4'.

Are Dahlia and Water Lily deer resistant?

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

Which is easier to maintain, Dahlia or Water Lily?

Both Dahlia and Water Lily have medium maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.