Fountain Grass vs Sweet Potato

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

Fountain Grass

Pennisetum alopecuroides

Poaceae · grasses

Deer ResistantDrought TolerantLow Maintenance

Sweet Potato

Ipomoea batatas

Convolvulaceae · vegetables

EdibleDrought TolerantLow Maintenance

Hardiness Zone Range

Fountain Grass (Zones 5-9)

Sweet Potato (Zones 3-11)

Overlap: Both grow in zones 5–9

Detailed Comparison

Feature	Fountain Grass	Sweet Potato
Scientific Name	Pennisetum alopecuroides	Ipomoea batatas
Family	Poaceae	Convolvulaceae
Category	grasses	vegetables
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Loose, Sandy
Height	4'	1'
Spread	3'	4'
Bloom Season	Summer-Fall	Late Summer-Fall
Bloom Color	Pink, Tan	Purple (occasional)
Growth Rate	Fast	Fast
Native Region	East Asia, Australia	Central/South America
Maintenance	Low	Low

Special Traits

Fountain Grass

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Sweet Potato

Yes — EdibleNo — 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.

Sweet Potato

✓Plant slips (rooted sprouts) after soil warms.
✓Needs loose soil and warm temperatures.
✓Cure harvested tubers at 80°F for 10 days.
✓Don't refrigerate.

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 Sweet Potato if you want a low-maintenance plant, need drought tolerance. It thrives in full sun with medium water in zones 3–11.

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 Sweet PotatoProfile →

Frequently Asked Questions

Can Fountain Grass and Sweet Potato grow in the same hardiness zone?

Fountain Grass grows in USDA zones 5-9, while Sweet Potato grows in zones 3-11. Both plants can grow together in zones 5 through 9.

Do Fountain Grass and Sweet Potato have the same sun and water needs?

Fountain Grass needs full sun and medium water, while Sweet Potato 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 Sweet Potato?

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

Are Fountain Grass and Sweet Potato deer resistant?

Fountain Grass is deer resistant, but Sweet Potato is not. If deer are a concern, Fountain Grass is the better choice, or protect Sweet Potato with fencing.

Which is easier to maintain, Fountain Grass or Sweet Potato?

Both Fountain Grass and Sweet Potato 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	Sweet Potato
Scientific Name	Pennisetum alopecuroides	Ipomoea batatas
Family	Poaceae	Convolvulaceae
Category	grasses	vegetables
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Loose, Sandy
Height	4'	1'
Spread	3'	4'
Bloom Season	Summer-Fall	Late Summer-Fall
Bloom Color	Pink, Tan	Purple (occasional)
Growth Rate	Fast	Fast
Native Region	East Asia, Australia	Central/South America
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.

Sweet Potato

✓Plant slips (rooted sprouts) after soil warms.
✓Needs loose soil and warm temperatures.
✓Cure harvested tubers at 80°F for 10 days.
✓Don't refrigerate.

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 Sweet Potato if you want a low-maintenance plant, need drought tolerance. It thrives in full sun with medium water in zones 3–11.

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 Sweet Potato grow in the same hardiness zone?

Fountain Grass grows in USDA zones 5-9, while Sweet Potato grows in zones 3-11. Both plants can grow together in zones 5 through 9.

Do Fountain Grass and Sweet Potato have the same sun and water needs?

Fountain Grass needs full sun and medium water, while Sweet Potato 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 Sweet Potato?

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

Are Fountain Grass and Sweet Potato deer resistant?

Fountain Grass is deer resistant, but Sweet Potato is not. If deer are a concern, Fountain Grass is the better choice, or protect Sweet Potato with fencing.

Which is easier to maintain, Fountain Grass or Sweet Potato?

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