Black-Eyed Susan vs Butterfly Weed

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

Black-Eyed Susan

Rudbeckia hirta

Asteraceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Butterfly Weed

Asclepias tuberosa

Apocynaceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Black-Eyed Susan (Zones 3-9)

Butterfly Weed (Zones 3-9)

Overlap: Both grow in zones 3–9

Detailed Comparison

Feature	Black-Eyed Susan	Butterfly Weed
Scientific Name	Rudbeckia hirta	Asclepias tuberosa
Family	Asteraceae	Apocynaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Sandy
Height	3'	2' 6"
Spread	1' 6"	1' 6"
Bloom Season	Summer-Fall	Summer
Bloom Color	Yellow	Orange
Growth Rate	Fast	Medium
Native Region	Eastern North America	Eastern North America
Maintenance	Low	Low

Special Traits

Black-Eyed Susan

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Butterfly Weed

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Black-Eyed Susan

✓Deadhead spent blooms to encourage reblooming.
✓Divide clumps every 3-4 years.
✓Tolerates poor soil and drought once established.

Butterfly Weed

✓Deep taproot — don't transplant.
✓Direct sow or plant young.
✓Late to emerge in spring — mark location.
✓Monarch caterpillar host plant.

Which Plant Is Right for Your Garden?

Choose Black-Eyed Susan if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 3–9.

Choose Butterfly Weed if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 3–9.

Plant them together? Both overlap in zones 3–9. They share similar sun requirements (full sun), making them potential garden companions.

View Black-Eyed SusanProfile →View Butterfly WeedProfile →

Frequently Asked Questions

Can Black-Eyed Susan and Butterfly Weed grow in the same hardiness zone?

Black-Eyed Susan grows in USDA zones 3-9, while Butterfly Weed grows in zones 3-9. Both plants can grow together in zones 3 through 9.

Do Black-Eyed Susan and Butterfly Weed have the same sun and water needs?

Black-Eyed Susan needs full sun and medium water, while Butterfly Weed needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Black-Eyed Susan or Butterfly Weed?

Black-Eyed Susan grows taller at 3' compared to Butterfly Weed at 2' 6". Black-Eyed Susan spreads 1' 6" while Butterfly Weed spreads 1' 6".

Are Black-Eyed Susan and Butterfly Weed deer resistant?

Yes, both Black-Eyed Susan and Butterfly Weed are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Black-Eyed Susan or Butterfly Weed?

Both Black-Eyed Susan and Butterfly Weed 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	Black-Eyed Susan	Butterfly Weed
Scientific Name	Rudbeckia hirta	Asclepias tuberosa
Family	Asteraceae	Apocynaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Sandy
Height	3'	2' 6"
Spread	1' 6"	1' 6"
Bloom Season	Summer-Fall	Summer
Bloom Color	Yellow	Orange
Growth Rate	Fast	Medium
Native Region	Eastern North America	Eastern North America
Maintenance	Low	Low

Care Tips

Black-Eyed Susan

✓Deadhead spent blooms to encourage reblooming.
✓Divide clumps every 3-4 years.
✓Tolerates poor soil and drought once established.

Butterfly Weed

✓Deep taproot — don't transplant.
✓Direct sow or plant young.
✓Late to emerge in spring — mark location.
✓Monarch caterpillar host plant.

Which Plant Is Right for Your Garden?

Choose Black-Eyed Susan if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 3–9.

Choose Butterfly Weed if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 3–9.

Plant them together? Both overlap in zones 3–9. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Black-Eyed Susan and Butterfly Weed grow in the same hardiness zone?

Black-Eyed Susan grows in USDA zones 3-9, while Butterfly Weed grows in zones 3-9. Both plants can grow together in zones 3 through 9.

Do Black-Eyed Susan and Butterfly Weed have the same sun and water needs?

Black-Eyed Susan needs full sun and medium water, while Butterfly Weed needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Black-Eyed Susan or Butterfly Weed?

Black-Eyed Susan grows taller at 3' compared to Butterfly Weed at 2' 6". Black-Eyed Susan spreads 1' 6" while Butterfly Weed spreads 1' 6".

Are Black-Eyed Susan and Butterfly Weed deer resistant?

Yes, both Black-Eyed Susan and Butterfly Weed are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Black-Eyed Susan or Butterfly Weed?

Both Black-Eyed Susan and Butterfly Weed have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.