Daylily vs Delphinium

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

Daylily

Hemerocallis spp.

Asparagaceae · flowers

EdibleLow Maintenance

Delphinium

Delphinium elatum

Ranunculaceae · flowers

Deer ResistantHigh Maintenance

Hardiness Zone Range

Daylily (Zones 3-10)

Delphinium (Zones 3-7)

Overlap: Both grow in zones 3–7

Detailed Comparison

Feature	Daylily	Delphinium
Scientific Name	Hemerocallis spp.	Delphinium elatum
Family	Asparagaceae	Ranunculaceae
Category	flowers	flowers
Sun	☀️ Full Sun to Part Shade	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Adaptable	Rich, Well-drained
Height	3'	6'
Spread	2'	2'
Bloom Season	Summer	Early Summer
Bloom Color	Yellow, Orange, Red, Pink	Blue, Purple, White, Pink
Growth Rate	Fast	Fast
Native Region	East Asia	Europe, Asia
Maintenance	Low	High

Special Traits

Daylily

Yes — EdibleNo — Deer ResistantNo — Drought Tolerant

Delphinium

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Daylily

✓Remove spent scapes after blooming.
✓Divide every 3-5 years when clumps become crowded.
✓Virtually pest and disease free.

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.

Which Plant Is Right for Your Garden?

Choose Daylily if you want a low-maintenance plant. It thrives in full sun to part shade with medium water in zones 3–10.

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.

Plant them together? Both overlap in zones 3–7. However, they have different sun needs, so plan your garden layout carefully.

View DaylilyProfile →View DelphiniumProfile →

Frequently Asked Questions

Can Daylily and Delphinium grow in the same hardiness zone?

Daylily grows in USDA zones 3-10, while Delphinium grows in zones 3-7. Both plants can grow together in zones 3 through 7.

Do Daylily and Delphinium have the same sun and water needs?

Daylily needs full sun to part shade and medium water, while Delphinium needs full sun and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Daylily or Delphinium?

Delphinium grows taller at 6' compared to Daylily at 3'. Delphinium spreads 2' while Daylily spreads 2'.

Are Daylily and Delphinium deer resistant?

Delphinium is deer resistant, but Daylily is not. If deer are a concern, Delphinium is the better choice, or protect Daylily with fencing.

Which is easier to maintain, Daylily or Delphinium?

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

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Detailed Comparison

Feature	Daylily	Delphinium
Scientific Name	Hemerocallis spp.	Delphinium elatum
Family	Asparagaceae	Ranunculaceae
Category	flowers	flowers
Sun	☀️ Full Sun to Part Shade	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Adaptable	Rich, Well-drained
Height	3'	6'
Spread	2'	2'
Bloom Season	Summer	Early Summer
Bloom Color	Yellow, Orange, Red, Pink	Blue, Purple, White, Pink
Growth Rate	Fast	Fast
Native Region	East Asia	Europe, Asia
Maintenance	Low	High

Care Tips

Daylily

✓Remove spent scapes after blooming.
✓Divide every 3-5 years when clumps become crowded.
✓Virtually pest and disease free.

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.

Which Plant Is Right for Your Garden?

Choose Daylily if you want a low-maintenance plant. It thrives in full sun to part shade with medium water in zones 3–10.

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.

Plant them together? Both overlap in zones 3–7. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Daylily and Delphinium grow in the same hardiness zone?

Daylily grows in USDA zones 3-10, while Delphinium grows in zones 3-7. Both plants can grow together in zones 3 through 7.

Do Daylily and Delphinium have the same sun and water needs?

Daylily needs full sun to part shade and medium water, while Delphinium needs full sun and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Daylily or Delphinium?

Delphinium grows taller at 6' compared to Daylily at 3'. Delphinium spreads 2' while Daylily spreads 2'.

Are Daylily and Delphinium deer resistant?

Delphinium is deer resistant, but Daylily is not. If deer are a concern, Delphinium is the better choice, or protect Daylily with fencing.

Which is easier to maintain, Daylily or Delphinium?

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