Astilbe vs Black-Eyed Susan Vine

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

Astilbe

Astilbe × arendsii

Saxifragaceae · flowers

Deer ResistantLow Maintenance

Black-Eyed Susan Vine

Thunbergia alata

Acanthaceae · vines

Deer ResistantLow Maintenance

Hardiness Zone Range

Astilbe (Zones 4-8)

Black-Eyed Susan Vine (Zones 10-11)

No zone overlap — these plants cannot be grown in the same climate

Detailed Comparison

Feature	Astilbe	Black-Eyed Susan Vine
Scientific Name	Astilbe × arendsii	Thunbergia alata
Family	Saxifragaceae	Acanthaceae
Category	flowers	vines
Sun	⛅ Part Shade	☀️ Full Sun
Water	💧💧 Medium to High	💧💧 Medium
Soil	Rich, Moist	Well-drained
Height	3'	8'
Spread	2'	2'
Bloom Season	Summer	Summer-Fall
Bloom Color	Red, Pink, White, Purple	Orange, Yellow, White
Growth Rate	Medium	Fast
Native Region	East Asia	East Africa
Maintenance	Low	Low

Special Traits

Astilbe

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Black-Eyed Susan Vine

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Astilbe

✓Must have consistently moist soil — wilts quickly if dry.
✓Divide every 3-4 years.
✓Leave dried flower heads for winter texture.
✓Feed in spring with balanced fertilizer.

Black-Eyed Susan Vine

✓Treat as annual in most zones.
✓Provide trellis or let trail from basket.
✓Deadhead for continuous bloom.
✓Start indoors 6 weeks before last frost.

Which Plant Is Right for Your Garden?

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

Choose Black-Eyed Susan Vine if you want a low-maintenance plant, and want deer resistance. It thrives in full sun with medium water in zones 10–11.

View AstilbeProfile →View Black-Eyed Susan VineProfile →

Frequently Asked Questions

Can Astilbe and Black-Eyed Susan Vine grow in the same hardiness zone?

Astilbe grows in USDA zones 4-8, while Black-Eyed Susan Vine grows in zones 10-11. These plants have no overlapping hardiness zones, so they cannot be grown together in the same climate.

Do Astilbe and Black-Eyed Susan Vine have the same sun and water needs?

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

Which grows taller, Astilbe or Black-Eyed Susan Vine?

Black-Eyed Susan Vine grows taller at 8' compared to Astilbe at 3'. Black-Eyed Susan Vine spreads 2' while Astilbe spreads 2'.

Are Astilbe and Black-Eyed Susan Vine deer resistant?

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

Which is easier to maintain, Astilbe or Black-Eyed Susan Vine?

Both Astilbe and Black-Eyed Susan Vine 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	Astilbe	Black-Eyed Susan Vine
Scientific Name	Astilbe × arendsii	Thunbergia alata
Family	Saxifragaceae	Acanthaceae
Category	flowers	vines
Sun	⛅ Part Shade	☀️ Full Sun
Water	💧💧 Medium to High	💧💧 Medium
Soil	Rich, Moist	Well-drained
Height	3'	8'
Spread	2'	2'
Bloom Season	Summer	Summer-Fall
Bloom Color	Red, Pink, White, Purple	Orange, Yellow, White
Growth Rate	Medium	Fast
Native Region	East Asia	East Africa
Maintenance	Low	Low

Care Tips

Astilbe

✓Must have consistently moist soil — wilts quickly if dry.
✓Divide every 3-4 years.
✓Leave dried flower heads for winter texture.
✓Feed in spring with balanced fertilizer.

Black-Eyed Susan Vine

✓Treat as annual in most zones.
✓Provide trellis or let trail from basket.
✓Deadhead for continuous bloom.
✓Start indoors 6 weeks before last frost.

Frequently Asked Questions

Can Astilbe and Black-Eyed Susan Vine grow in the same hardiness zone?

Astilbe grows in USDA zones 4-8, while Black-Eyed Susan Vine grows in zones 10-11. These plants have no overlapping hardiness zones, so they cannot be grown together in the same climate.

Do Astilbe and Black-Eyed Susan Vine have the same sun and water needs?

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

Which grows taller, Astilbe or Black-Eyed Susan Vine?

Black-Eyed Susan Vine grows taller at 8' compared to Astilbe at 3'. Black-Eyed Susan Vine spreads 2' while Astilbe spreads 2'.

Are Astilbe and Black-Eyed Susan Vine deer resistant?

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

Which is easier to maintain, Astilbe or Black-Eyed Susan Vine?

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