Black-Eyed Susan vs Japanese Painted Fern

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

Black-Eyed Susan

Rudbeckia hirta

Asteraceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Japanese Painted Fern

Athyrium niponicum

Athyriaceae · ferns

Deer ResistantLow Maintenance

Hardiness Zone Range

Black-Eyed Susan (Zones 3-9)

Japanese Painted Fern (Zones 4-8)

Overlap: Both grow in zones 4–8

Detailed Comparison

Feature	Black-Eyed Susan	Japanese Painted Fern
Scientific Name	Rudbeckia hirta	Athyrium niponicum
Family	Asteraceae	Athyriaceae
Category	flowers	ferns
Sun	☀️ Full Sun	⛅ Part Shade to Full Shade
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Rich, Moist
Height	3'	1' 6"
Spread	1' 6"	2'
Bloom Season	Summer-Fall	Non-flowering
Bloom Color	Yellow	None
Growth Rate	Fast	Medium
Native Region	Eastern North America	Japan, East Asia
Maintenance	Low	Low

Special Traits

Black-Eyed Susan

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Japanese Painted Fern

No — EdibleYes — Deer ResistantNo — 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.

Japanese Painted Fern

✓Provide consistent moisture but not soggy soil.
✓Pairs beautifully with hostas and astilbes.
✓Cut back dead fronds in spring.
✓Slowly spreads to form elegant colonies.

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 Japanese Painted Fern if you want a low-maintenance plant, and want deer resistance. It thrives in part shade to full 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 Black-Eyed SusanProfile →View Japanese Painted FernProfile →

Frequently Asked Questions

Can Black-Eyed Susan and Japanese Painted Fern grow in the same hardiness zone?

Black-Eyed Susan grows in USDA zones 3-9, while Japanese Painted Fern grows in zones 4-8. Both plants can grow together in zones 4 through 8.

Do Black-Eyed Susan and Japanese Painted Fern have the same sun and water needs?

Black-Eyed Susan needs full sun and medium water, while Japanese Painted Fern needs part shade to full shade and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Black-Eyed Susan or Japanese Painted Fern?

Black-Eyed Susan grows taller at 3' compared to Japanese Painted Fern at 1' 6". Black-Eyed Susan spreads 1' 6" while Japanese Painted Fern spreads 2'.

Are Black-Eyed Susan and Japanese Painted Fern deer resistant?

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

Which is easier to maintain, Black-Eyed Susan or Japanese Painted Fern?

Both Black-Eyed Susan and Japanese Painted Fern 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	Japanese Painted Fern
Scientific Name	Rudbeckia hirta	Athyrium niponicum
Family	Asteraceae	Athyriaceae
Category	flowers	ferns
Sun	☀️ Full Sun	⛅ Part Shade to Full Shade
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Rich, Moist
Height	3'	1' 6"
Spread	1' 6"	2'
Bloom Season	Summer-Fall	Non-flowering
Bloom Color	Yellow	None
Growth Rate	Fast	Medium
Native Region	Eastern North America	Japan, East Asia
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.

Japanese Painted Fern

✓Provide consistent moisture but not soggy soil.
✓Pairs beautifully with hostas and astilbes.
✓Cut back dead fronds in spring.
✓Slowly spreads to form elegant colonies.