Cosmos vs Foxglove

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

Cosmos

Cosmos bipinnatus

Asteraceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Foxglove

Digitalis purpurea

Plantaginaceae · flowers

Deer ResistantLow Maintenance

Hardiness Zone Range

Cosmos (Zones 2-11)

Foxglove (Zones 4-8)

Overlap: Both grow in zones 4–8

Detailed Comparison

Feature	Cosmos	Foxglove
Scientific Name	Cosmos bipinnatus	Digitalis purpurea
Family	Asteraceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	⛅ Part Shade
Water	💧 Low	💧💧 Medium
Soil	Well-drained, Poor	Rich, Moist
Height	5'	5'
Spread	2'	1' 6"
Bloom Season	Summer-Fall	Late Spring-Summer
Bloom Color	Pink, White, Red	Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Mexico	Europe
Maintenance	Low	Low

Special Traits

Cosmos

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Foxglove

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Cosmos

✓Direct sow after frost.
✓Don't fertilize — rich soil produces leaves not flowers.
✓Deadhead or let self-seed.
✓Tall varieties may need staking in wind.

Foxglove

✓Let self-seed for continuous display.
✓Plant in drifts for best effect.
✓Remove unwanted seedlings.
✓Wear gloves when handling.
✓Thrives in woodland edge conditions.

Which Plant Is Right for Your Garden?

Choose Cosmos if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 2–11.

Choose Foxglove if you want a low-maintenance plant, and want deer resistance. It thrives in part shade with medium water in zones 4–8.

Plant them together? Both overlap in zones 4–8. However, they have different sun needs, so plan your garden layout carefully.

View CosmosProfile →View FoxgloveProfile →

Frequently Asked Questions

Can Cosmos and Foxglove grow in the same hardiness zone?

Cosmos grows in USDA zones 2-11, while Foxglove grows in zones 4-8. Both plants can grow together in zones 4 through 8.

Do Cosmos and Foxglove have the same sun and water needs?

Cosmos needs full sun and low water, while Foxglove needs part shade and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Cosmos or Foxglove?

Both Cosmos and Foxglove reach approximately 5' in height, with spreads of 2' and 1' 6" respectively.

Are Cosmos and Foxglove deer resistant?

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

Which is easier to maintain, Cosmos or Foxglove?

Both Cosmos and Foxglove 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	Cosmos	Foxglove
Scientific Name	Cosmos bipinnatus	Digitalis purpurea
Family	Asteraceae	Plantaginaceae
Category	flowers	flowers
Sun	☀️ Full Sun	⛅ Part Shade
Water	💧 Low	💧💧 Medium
Soil	Well-drained, Poor	Rich, Moist
Height	5'	5'
Spread	2'	1' 6"
Bloom Season	Summer-Fall	Late Spring-Summer
Bloom Color	Pink, White, Red	Purple, Pink, White
Growth Rate	Fast	Fast
Native Region	Mexico	Europe
Maintenance	Low	Low

Care Tips

Cosmos

✓Direct sow after frost.
✓Don't fertilize — rich soil produces leaves not flowers.
✓Deadhead or let self-seed.
✓Tall varieties may need staking in wind.

Foxglove

✓Let self-seed for continuous display.
✓Plant in drifts for best effect.
✓Remove unwanted seedlings.
✓Wear gloves when handling.
✓Thrives in woodland edge conditions.

Which Plant Is Right for Your Garden?

Choose Cosmos if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 2–11.

Choose Foxglove if you want a low-maintenance plant, and want deer resistance. It thrives in part shade with medium water in zones 4–8.

Plant them together? Both overlap in zones 4–8. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Cosmos and Foxglove grow in the same hardiness zone?

Cosmos grows in USDA zones 2-11, while Foxglove grows in zones 4-8. Both plants can grow together in zones 4 through 8.

Do Cosmos and Foxglove have the same sun and water needs?

Cosmos needs full sun and low water, while Foxglove needs part shade and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Cosmos or Foxglove?

Both Cosmos and Foxglove reach approximately 5' in height, with spreads of 2' and 1' 6" respectively.

Are Cosmos and Foxglove deer resistant?

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

Which is easier to maintain, Cosmos or Foxglove?

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