Penstemon vs Snapdragon

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

Penstemon

Penstemon digitalis

Plantaginaceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Snapdragon

Antirrhinum majus

Plantaginaceae · flowers

Deer ResistantLow Maintenance

Hardiness Zone Range

Penstemon (Zones 3-8)

Snapdragon (Zones 7-10)

Overlap: Both grow in zones 7–8

Detailed Comparison

Feature	Penstemon	Snapdragon
Scientific Name	Penstemon digitalis	Antirrhinum majus
Family	Plantaginaceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧 Low	💧💧 Medium
Soil	Well-drained	Rich, Well-drained
Height	3'	3'
Spread	1' 6"	1'
Bloom Season	Early Summer	Spring-Fall
Bloom Color	White, Pink, Purple	Mixed
Growth Rate	Medium	Fast
Native Region	North America	Mediterranean
Maintenance	Low	Low

Special Traits

Penstemon

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Snapdragon

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

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.

Snapdragon

✓Pinch growing tips for bushier plants.
✓Deadhead for continuous bloom.
✓Cool-season annual — plant in fall in warm climates.
✓Excellent cut flower.

Which Plant Is Right for Your Garden?

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.

Choose Snapdragon if you want a low-maintenance plant, and want deer resistance. It thrives in full sun with medium water in zones 7–10.

Plant them together? Both overlap in zones 7–8. They share similar sun requirements (full sun), making them potential garden companions.

View PenstemonProfile →View SnapdragonProfile →

Frequently Asked Questions

Can Penstemon and Snapdragon grow in the same hardiness zone?

Penstemon grows in USDA zones 3-8, while Snapdragon grows in zones 7-10. Both plants can grow together in zones 7 through 8.

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

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

Which grows taller, Penstemon or Snapdragon?

Both Penstemon and Snapdragon reach approximately 3' in height, with spreads of 1' 6" and 1' respectively.

Are Penstemon and Snapdragon deer resistant?

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

Which is easier to maintain, Penstemon or Snapdragon?

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

Explore More Data Tools

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

Detailed Comparison

Feature	Penstemon	Snapdragon
Scientific Name	Penstemon digitalis	Antirrhinum majus
Family	Plantaginaceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧 Low	💧💧 Medium
Soil	Well-drained	Rich, Well-drained
Height	3'	3'
Spread	1' 6"	1'
Bloom Season	Early Summer	Spring-Fall
Bloom Color	White, Pink, Purple	Mixed
Growth Rate	Medium	Fast
Native Region	North America	Mediterranean
Maintenance	Low	Low

Care Tips

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.

Snapdragon

✓Pinch growing tips for bushier plants.
✓Deadhead for continuous bloom.
✓Cool-season annual — plant in fall in warm climates.
✓Excellent cut flower.

Which Plant Is Right for Your Garden?

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.

Choose Snapdragon if you want a low-maintenance plant, and want deer resistance. It thrives in full sun with medium water in zones 7–10.

Plant them together? Both overlap in zones 7–8. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Penstemon and Snapdragon grow in the same hardiness zone?

Penstemon grows in USDA zones 3-8, while Snapdragon grows in zones 7-10. Both plants can grow together in zones 7 through 8.

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

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

Which grows taller, Penstemon or Snapdragon?

Both Penstemon and Snapdragon reach approximately 3' in height, with spreads of 1' 6" and 1' respectively.

Are Penstemon and Snapdragon deer resistant?

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

Which is easier to maintain, Penstemon or Snapdragon?

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