Hollyhock vs Penstemon

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

Hollyhock

Alcea rosea

Malvaceae · flowers

EdibleDeer ResistantLow Maintenance

Penstemon

Penstemon digitalis

Plantaginaceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Hollyhock (Zones 3-8)

Penstemon (Zones 3-8)

Overlap: Both grow in zones 3–8

Detailed Comparison

Feature	Hollyhock	Penstemon
Scientific Name	Alcea rosea	Penstemon digitalis
Family	Malvaceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained
Height	8'	3'
Spread	1' 6"	1' 6"
Bloom Season	Summer	Early Summer
Bloom Color	Pink, Red, Yellow, White, Black	White, Pink, Purple
Growth Rate	Fast	Medium
Native Region	China, Turkey	North America
Maintenance	Low	Low

Special Traits

Hollyhock

Yes — EdibleYes — Deer ResistantNo — Drought Tolerant

Penstemon

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Hollyhock

✓Plant against a wall or fence for wind protection.
✓Prone to rust — space for air circulation.
✓Self-seeds prolifically.
✓Biennial but self-sows to seem perennial.

Penstemon

✓Excellent drainage essential — root rot is the main killer.
✓Don't over-fertilize or overwater.
✓Cut back after first flush for possible rebloom.
✓Short-lived but self-seeds.

Which Plant Is Right for Your Garden?

Choose Hollyhock if you want a low-maintenance plant, and want deer resistance. It thrives in full sun with medium water in zones 3–8.

Choose Penstemon if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 3–8.

Plant them together? Both overlap in zones 3–8. They share similar sun requirements (full sun), making them potential garden companions.

View HollyhockProfile →View PenstemonProfile →

Frequently Asked Questions

Can Hollyhock and Penstemon grow in the same hardiness zone?

Hollyhock grows in USDA zones 3-8, while Penstemon grows in zones 3-8. Both plants can grow together in zones 3 through 8.

Do Hollyhock and Penstemon have the same sun and water needs?

Hollyhock needs full sun and medium water, while Penstemon needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Hollyhock or Penstemon?

Hollyhock grows taller at 8' compared to Penstemon at 3'. Hollyhock spreads 1' 6" while Penstemon spreads 1' 6".

Are Hollyhock and Penstemon deer resistant?

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

Which is easier to maintain, Hollyhock or Penstemon?

Both Hollyhock and Penstemon have low 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	Hollyhock	Penstemon
Scientific Name	Alcea rosea	Penstemon digitalis
Family	Malvaceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained
Height	8'	3'
Spread	1' 6"	1' 6"
Bloom Season	Summer	Early Summer
Bloom Color	Pink, Red, Yellow, White, Black	White, Pink, Purple
Growth Rate	Fast	Medium
Native Region	China, Turkey	North America
Maintenance	Low	Low

Care Tips

Hollyhock

✓Plant against a wall or fence for wind protection.
✓Prone to rust — space for air circulation.
✓Self-seeds prolifically.
✓Biennial but self-sows to seem perennial.

Penstemon

✓Excellent drainage essential — root rot is the main killer.
✓Don't over-fertilize or overwater.
✓Cut back after first flush for possible rebloom.
✓Short-lived but self-seeds.

Which Plant Is Right for Your Garden?

Choose Hollyhock if you want a low-maintenance plant, and want deer resistance. It thrives in full sun with medium water in zones 3–8.

Choose Penstemon if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 3–8.

Plant them together? Both overlap in zones 3–8. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Hollyhock and Penstemon grow in the same hardiness zone?

Hollyhock grows in USDA zones 3-8, while Penstemon grows in zones 3-8. Both plants can grow together in zones 3 through 8.

Do Hollyhock and Penstemon have the same sun and water needs?

Hollyhock needs full sun and medium water, while Penstemon needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Hollyhock or Penstemon?

Hollyhock grows taller at 8' compared to Penstemon at 3'. Hollyhock spreads 1' 6" while Penstemon spreads 1' 6".

Are Hollyhock and Penstemon deer resistant?

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

Which is easier to maintain, Hollyhock or Penstemon?

Both Hollyhock and Penstemon have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.