Fountain Grass vs Zinnia

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

Fountain Grass

Pennisetum alopecuroides

Poaceae · grasses

Deer ResistantDrought TolerantLow Maintenance

Zinnia

Zinnia elegans

Asteraceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Fountain Grass (Zones 5-9)

Zinnia (Zones 2-11)

Overlap: Both grow in zones 5–9

Detailed Comparison

Feature	Fountain Grass	Zinnia
Scientific Name	Pennisetum alopecuroides	Zinnia elegans
Family	Poaceae	Asteraceae
Category	grasses	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Well-drained
Height	4'	3'
Spread	3'	1'
Bloom Season	Summer-Fall	Summer-Fall
Bloom Color	Pink, Tan	Mixed
Growth Rate	Fast	Fast
Native Region	East Asia, Australia	Mexico
Maintenance	Low	Low

Special Traits

Fountain Grass

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Zinnia

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Fountain Grass

✓Cut back to 6 inches in late winter before new growth.
✓Divide every 3-4 years.
✓Leave seed heads for winter interest.
✓Drought tolerant once established.

Zinnia

✓Direct sow after last frost — zinnias dislike transplanting.
✓Space for air circulation to prevent powdery mildew.
✓Deadhead for continuous bloom.

Which Plant Is Right for Your Garden?

Choose Fountain Grass if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 5–9.

Choose Zinnia if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 5–9. They share similar sun requirements (full sun), making them potential garden companions.

View Fountain GrassProfile →View ZinniaProfile →

Frequently Asked Questions

Can Fountain Grass and Zinnia grow in the same hardiness zone?

Fountain Grass grows in USDA zones 5-9, while Zinnia grows in zones 2-11. Both plants can grow together in zones 5 through 9.

Do Fountain Grass and Zinnia have the same sun and water needs?

Fountain Grass needs full sun and medium water, while Zinnia needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Fountain Grass or Zinnia?

Fountain Grass grows taller at 4' compared to Zinnia at 3'. Fountain Grass spreads 3' while Zinnia spreads 1'.

Are Fountain Grass and Zinnia deer resistant?

Yes, both Fountain Grass and Zinnia are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Fountain Grass or Zinnia?

Both Fountain Grass and Zinnia 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	Fountain Grass	Zinnia
Scientific Name	Pennisetum alopecuroides	Zinnia elegans
Family	Poaceae	Asteraceae
Category	grasses	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Well-drained
Height	4'	3'
Spread	3'	1'
Bloom Season	Summer-Fall	Summer-Fall
Bloom Color	Pink, Tan	Mixed
Growth Rate	Fast	Fast
Native Region	East Asia, Australia	Mexico
Maintenance	Low	Low

Care Tips

Fountain Grass

✓Cut back to 6 inches in late winter before new growth.
✓Divide every 3-4 years.
✓Leave seed heads for winter interest.
✓Drought tolerant once established.

Zinnia

✓Direct sow after last frost — zinnias dislike transplanting.
✓Space for air circulation to prevent powdery mildew.
✓Deadhead for continuous bloom.

Which Plant Is Right for Your Garden?

Choose Fountain Grass if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 5–9.

Choose Zinnia if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 5–9. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Fountain Grass and Zinnia grow in the same hardiness zone?

Fountain Grass grows in USDA zones 5-9, while Zinnia grows in zones 2-11. Both plants can grow together in zones 5 through 9.

Do Fountain Grass and Zinnia have the same sun and water needs?

Fountain Grass needs full sun and medium water, while Zinnia needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Fountain Grass or Zinnia?

Fountain Grass grows taller at 4' compared to Zinnia at 3'. Fountain Grass spreads 3' while Zinnia spreads 1'.

Are Fountain Grass and Zinnia deer resistant?

Yes, both Fountain Grass and Zinnia are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Fountain Grass or Zinnia?

Both Fountain Grass and Zinnia have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.