Boxwood vs Delphinium

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

Boxwood

Buxus sempervirens

Buxaceae · shrubs

Deer ResistantMedium Maintenance

Delphinium

Delphinium elatum

Ranunculaceae · flowers

Deer ResistantHigh Maintenance

Hardiness Zone Range

Boxwood (Zones 5-8)

Delphinium (Zones 3-7)

Overlap: Both grow in zones 5–7

Detailed Comparison

Feature	Boxwood	Delphinium
Scientific Name	Buxus sempervirens	Delphinium elatum
Family	Buxaceae	Ranunculaceae
Category	shrubs	flowers
Sun	☀️ Part Shade to Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Rich, Well-drained
Height	8'	6'
Spread	8'	2'
Bloom Season	Spring	Early Summer
Bloom Color	Green	Blue, Purple, White, Pink
Growth Rate	Slow	Fast
Native Region	Europe, Asia, Africa	Europe, Asia
Maintenance	Medium	High

Special Traits

Boxwood

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Delphinium

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Boxwood

✓Avoid deep cultivation near shallow roots.
✓Thin interior branches for air circulation.
✓Protect from drying winter winds.
✓Don't plant too deep.

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 Boxwood if you don't mind medium maintenance, and want deer resistance. It thrives in part shade to full sun with medium water in zones 5–8.

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 5–7. However, they have different sun needs, so plan your garden layout carefully.

View BoxwoodProfile →View DelphiniumProfile →

Frequently Asked Questions

Can Boxwood and Delphinium grow in the same hardiness zone?

Boxwood grows in USDA zones 5-8, while Delphinium grows in zones 3-7. Both plants can grow together in zones 5 through 7.

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

Boxwood needs part shade to full sun 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, Boxwood or Delphinium?

Boxwood grows taller at 8' compared to Delphinium at 6'. Boxwood spreads 8' while Delphinium spreads 2'.

Are Boxwood and Delphinium deer resistant?

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

Which is easier to maintain, Boxwood or Delphinium?

Boxwood has medium maintenance while Delphinium has high maintenance. Boxwood may be easier for beginning gardeners to manage.

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Detailed Comparison

Feature	Boxwood	Delphinium
Scientific Name	Buxus sempervirens	Delphinium elatum
Family	Buxaceae	Ranunculaceae
Category	shrubs	flowers
Sun	☀️ Part Shade to Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Rich, Well-drained
Height	8'	6'
Spread	8'	2'
Bloom Season	Spring	Early Summer
Bloom Color	Green	Blue, Purple, White, Pink
Growth Rate	Slow	Fast
Native Region	Europe, Asia, Africa	Europe, Asia
Maintenance	Medium	High

Care Tips

Boxwood

✓Avoid deep cultivation near shallow roots.
✓Thin interior branches for air circulation.
✓Protect from drying winter winds.
✓Don't plant too deep.

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 Boxwood if you don't mind medium maintenance, and want deer resistance. It thrives in part shade to full sun with medium water in zones 5–8.

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 5–7. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Boxwood and Delphinium grow in the same hardiness zone?

Boxwood grows in USDA zones 5-8, while Delphinium grows in zones 3-7. Both plants can grow together in zones 5 through 7.

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

Boxwood needs part shade to full sun 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, Boxwood or Delphinium?

Boxwood grows taller at 8' compared to Delphinium at 6'. Boxwood spreads 8' while Delphinium spreads 2'.

Are Boxwood and Delphinium deer resistant?

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

Which is easier to maintain, Boxwood or Delphinium?

Boxwood has medium maintenance while Delphinium has high maintenance. Boxwood may be easier for beginning gardeners to manage.