Astilbe vs Southern Magnolia

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

Astilbe

Astilbe × arendsii

Saxifragaceae · flowers

Deer ResistantLow Maintenance

Southern Magnolia

Magnolia grandiflora

Magnoliaceae · trees

Deer ResistantLow Maintenance

Hardiness Zone Range

Astilbe (Zones 4-8)

Southern Magnolia (Zones 7-10)

Overlap: Both grow in zones 7–8

Detailed Comparison

Feature	Astilbe	Southern Magnolia
Scientific Name	Astilbe × arendsii	Magnolia grandiflora
Family	Saxifragaceae	Magnoliaceae
Category	flowers	trees
Sun	⛅ Part Shade	☀️ Full Sun to Part Shade
Water	💧💧 Medium to High	💧💧 Medium
Soil	Rich, Moist	Rich, Well-drained, Acidic
Height	3'	80'
Spread	2'	40'
Bloom Season	Summer	Late Spring-Summer
Bloom Color	Red, Pink, White, Purple	White
Growth Rate	Medium	Medium
Native Region	East Asia	Southeastern US
Maintenance	Low	Low

Special Traits

Astilbe

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Southern Magnolia

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.

Southern Magnolia

✓Protect from winter winds in northern range.
✓Give space for lower branches to sweep the ground.
✓Leaves are slow to decompose.
✓Large seed pods with red seeds.

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 Southern Magnolia if you want a low-maintenance plant, and want deer resistance. It thrives in full sun to part shade with medium water in zones 7–10.

Plant them together? Both overlap in zones 7–8. However, they have different sun needs, so plan your garden layout carefully.

View AstilbeProfile →View Southern MagnoliaProfile →

Frequently Asked Questions

Can Astilbe and Southern Magnolia grow in the same hardiness zone?

Astilbe grows in USDA zones 4-8, while Southern Magnolia grows in zones 7-10. Both plants can grow together in zones 7 through 8.

Do Astilbe and Southern Magnolia have the same sun and water needs?

Astilbe needs part shade and medium to high water, while Southern Magnolia needs full sun to part shade and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Astilbe or Southern Magnolia?

Southern Magnolia grows taller at 80' compared to Astilbe at 3'. Southern Magnolia spreads 40' while Astilbe spreads 2'.

Are Astilbe and Southern Magnolia deer resistant?

Yes, both Astilbe and Southern Magnolia are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Astilbe or Southern Magnolia?

Both Astilbe and Southern Magnolia 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	Southern Magnolia
Scientific Name	Astilbe × arendsii	Magnolia grandiflora
Family	Saxifragaceae	Magnoliaceae
Category	flowers	trees
Sun	⛅ Part Shade	☀️ Full Sun to Part Shade
Water	💧💧 Medium to High	💧💧 Medium
Soil	Rich, Moist	Rich, Well-drained, Acidic
Height	3'	80'
Spread	2'	40'
Bloom Season	Summer	Late Spring-Summer
Bloom Color	Red, Pink, White, Purple	White
Growth Rate	Medium	Medium
Native Region	East Asia	Southeastern US
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.

Southern Magnolia

✓Protect from winter winds in northern range.
✓Give space for lower branches to sweep the ground.
✓Leaves are slow to decompose.
✓Large seed pods with red seeds.

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 Southern Magnolia if you want a low-maintenance plant, and want deer resistance. It thrives in full sun to part shade with medium water in zones 7–10.

Plant them together? Both overlap in zones 7–8. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Astilbe and Southern Magnolia grow in the same hardiness zone?

Astilbe grows in USDA zones 4-8, while Southern Magnolia grows in zones 7-10. Both plants can grow together in zones 7 through 8.

Do Astilbe and Southern Magnolia have the same sun and water needs?

Which grows taller, Astilbe or Southern Magnolia?

Southern Magnolia grows taller at 80' compared to Astilbe at 3'. Southern Magnolia spreads 40' while Astilbe spreads 2'.

Are Astilbe and Southern Magnolia deer resistant?

Yes, both Astilbe and Southern Magnolia are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Astilbe or Southern Magnolia?

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