Delphinium vs Parsley

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

Delphinium

Delphinium elatum

Ranunculaceae · flowers

Deer ResistantHigh Maintenance

Parsley

Petroselinum crispum

Apiaceae · herbs

EdibleLow Maintenance

Hardiness Zone Range

Delphinium (Zones 3-7)

Parsley (Zones 5-9)

Overlap: Both grow in zones 5–7

Detailed Comparison

Feature	Delphinium	Parsley
Scientific Name	Delphinium elatum	Petroselinum crispum
Family	Ranunculaceae	Apiaceae
Category	flowers	herbs
Sun	☀️ Full Sun	☀️ Full Sun to Part Shade
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Rich, Moist
Height	6'	1'
Spread	2'	1'
Bloom Season	Early Summer	Spring-Summer
Bloom Color	Blue, Purple, White, Pink	Yellow-green (second year)
Growth Rate	Fast	Medium
Native Region	Europe, Asia	Mediterranean
Maintenance	High	Low

Special Traits

Delphinium

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Parsley

Yes — EdibleNo — Deer ResistantNo — 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.

Parsley

✓Soak seeds overnight before planting — slow to germinate (3-4 weeks).
✓Harvest outer stems first.
✓Cut flower stalks to prolong leaf production.
✓Swallowtail butterfly host plant.

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 Parsley if you want a low-maintenance plant. It thrives in full sun to part shade with medium water in zones 5–9.

Plant them together? Both overlap in zones 5–7. However, they have different sun needs, so plan your garden layout carefully.

View DelphiniumProfile →View ParsleyProfile →

Frequently Asked Questions

Can Delphinium and Parsley grow in the same hardiness zone?

Delphinium grows in USDA zones 3-7, while Parsley grows in zones 5-9. Both plants can grow together in zones 5 through 7.

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

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

Which grows taller, Delphinium or Parsley?

Delphinium grows taller at 6' compared to Parsley at 1'. Delphinium spreads 2' while Parsley spreads 1'.

Are Delphinium and Parsley deer resistant?

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

Which is easier to maintain, Delphinium or Parsley?

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

Explore More Data Tools

For adjacent public-data tools, methodology notes, and network updates, visit DataPeek Facts.

Detailed Comparison

Feature	Delphinium	Parsley
Scientific Name	Delphinium elatum	Petroselinum crispum
Family	Ranunculaceae	Apiaceae
Category	flowers	herbs
Sun	☀️ Full Sun	☀️ Full Sun to Part Shade
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Well-drained	Rich, Moist
Height	6'	1'
Spread	2'	1'
Bloom Season	Early Summer	Spring-Summer
Bloom Color	Blue, Purple, White, Pink	Yellow-green (second year)
Growth Rate	Fast	Medium
Native Region	Europe, Asia	Mediterranean
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.

Parsley

✓Soak seeds overnight before planting — slow to germinate (3-4 weeks).
✓Harvest outer stems first.
✓Cut flower stalks to prolong leaf production.
✓Swallowtail butterfly host plant.

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 Parsley if you want a low-maintenance plant. It thrives in full sun to part shade with medium water in zones 5–9.

Plant them together? Both overlap in zones 5–7. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Delphinium and Parsley grow in the same hardiness zone?

Delphinium grows in USDA zones 3-7, while Parsley grows in zones 5-9. Both plants can grow together in zones 5 through 7.

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

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

Which grows taller, Delphinium or Parsley?

Delphinium grows taller at 6' compared to Parsley at 1'. Delphinium spreads 2' while Parsley spreads 1'.

Are Delphinium and Parsley deer resistant?

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

Which is easier to maintain, Delphinium or Parsley?

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