Asiatic Lily vs Cosmos

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

Asiatic Lily

Lilium asiaticum

Liliaceae · bulbs

Deer ResistantLow Maintenance

Cosmos

Cosmos bipinnatus

Asteraceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Asiatic Lily (Zones 3-8)

Cosmos (Zones 2-11)

Overlap: Both grow in zones 3–8

Detailed Comparison

Feature	Asiatic Lily	Cosmos
Scientific Name	Lilium asiaticum	Cosmos bipinnatus
Family	Liliaceae	Asteraceae
Category	bulbs	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Poor
Height	3'	5'
Spread	1'	2'
Bloom Season	Early Summer	Summer-Fall
Bloom Color	Orange, Red, Yellow, Pink	Pink, White, Red
Growth Rate	Fast	Fast
Native Region	Asia	Mexico
Maintenance	Low	Low

Special Traits

Asiatic Lily

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Cosmos

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Asiatic Lily

✓Plant bulbs 6 inches deep in fall or spring.
✓Stake tall varieties.
✓Leave foliage to die naturally.
✓Divide every 3-4 years when crowded.

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.

Which Plant Is Right for Your Garden?

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

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.

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

View Asiatic LilyProfile →View CosmosProfile →

Frequently Asked Questions

Can Asiatic Lily and Cosmos grow in the same hardiness zone?

Asiatic Lily grows in USDA zones 3-8, while Cosmos grows in zones 2-11. Both plants can grow together in zones 3 through 8.

Do Asiatic Lily and Cosmos have the same sun and water needs?

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

Which grows taller, Asiatic Lily or Cosmos?

Cosmos grows taller at 5' compared to Asiatic Lily at 3'. Cosmos spreads 2' while Asiatic Lily spreads 1'.

Are Asiatic Lily and Cosmos deer resistant?

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

Which is easier to maintain, Asiatic Lily or Cosmos?

Both Asiatic Lily and Cosmos 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	Asiatic Lily	Cosmos
Scientific Name	Lilium asiaticum	Cosmos bipinnatus
Family	Liliaceae	Asteraceae
Category	bulbs	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Poor
Height	3'	5'
Spread	1'	2'
Bloom Season	Early Summer	Summer-Fall
Bloom Color	Orange, Red, Yellow, Pink	Pink, White, Red
Growth Rate	Fast	Fast
Native Region	Asia	Mexico
Maintenance	Low	Low

Care Tips

Asiatic Lily

✓Plant bulbs 6 inches deep in fall or spring.
✓Stake tall varieties.
✓Leave foliage to die naturally.
✓Divide every 3-4 years when crowded.

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.

Which Plant Is Right for Your Garden?

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

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.

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 Asiatic Lily and Cosmos grow in the same hardiness zone?

Asiatic Lily grows in USDA zones 3-8, while Cosmos grows in zones 2-11. Both plants can grow together in zones 3 through 8.

Do Asiatic Lily and Cosmos have the same sun and water needs?

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

Which grows taller, Asiatic Lily or Cosmos?

Cosmos grows taller at 5' compared to Asiatic Lily at 3'. Cosmos spreads 2' while Asiatic Lily spreads 1'.

Are Asiatic Lily and Cosmos deer resistant?

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

Which is easier to maintain, Asiatic Lily or Cosmos?

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