Potato vs Sweet Pea

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

Potato

Solanum tuberosum

Solanaceae · vegetables

EdibleMedium Maintenance

Sweet Pea

Lathyrus odoratus

Fabaceae · flowers

Deer ResistantMedium Maintenance

Hardiness Zone Range

Potato (Zones 3-10)

Sweet Pea (Zones 2-11)

Overlap: Both grow in zones 3–10

Detailed Comparison

Feature	Potato	Sweet Pea
Scientific Name	Solanum tuberosum	Lathyrus odoratus
Family	Solanaceae	Fabaceae
Category	vegetables	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Loose, Acidic	Rich, Well-drained
Height	2'	6'
Spread	1' 6"	1'
Bloom Season	Summer	Spring-Summer
Bloom Color	White, Purple	Mixed
Growth Rate	Medium	Fast
Native Region	South America (Andes)	Italy, Sicily
Maintenance	Medium	Medium

Special Traits

Potato

Yes — EdibleNo — Deer ResistantNo — Drought Tolerant

Sweet Pea

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Potato

✓Plant seed potatoes 4 inches deep, 12 inches apart.
✓Hill soil around stems as they grow.
✓Don't eat green potatoes — they contain solanine.
✓Harvest 2 weeks after vines die.

Sweet Pea

✓Soak seeds overnight before planting.
✓Provide trellis or netting.
✓Pick flowers frequently to prolong bloom.
✓Needs cool weather — plant early spring or fall in warm areas.

Which Plant Is Right for Your Garden?

Choose Potato if you don't mind medium maintenance. It thrives in full sun with medium water in zones 3–10.

Choose Sweet Pea if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 3–10. They share similar sun requirements (full sun), making them potential garden companions.

View PotatoProfile →View Sweet PeaProfile →

Frequently Asked Questions

Can Potato and Sweet Pea grow in the same hardiness zone?

Potato grows in USDA zones 3-10, while Sweet Pea grows in zones 2-11. Both plants can grow together in zones 3 through 10.

Do Potato and Sweet Pea have the same sun and water needs?

Potato needs full sun and medium water, while Sweet Pea needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Potato or Sweet Pea?

Sweet Pea grows taller at 6' compared to Potato at 2'. Sweet Pea spreads 1' while Potato spreads 1' 6".

Are Potato and Sweet Pea deer resistant?

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

Which is easier to maintain, Potato or Sweet Pea?

Both Potato and Sweet Pea have medium 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	Potato	Sweet Pea
Scientific Name	Solanum tuberosum	Lathyrus odoratus
Family	Solanaceae	Fabaceae
Category	vegetables	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Loose, Acidic	Rich, Well-drained
Height	2'	6'
Spread	1' 6"	1'
Bloom Season	Summer	Spring-Summer
Bloom Color	White, Purple	Mixed
Growth Rate	Medium	Fast
Native Region	South America (Andes)	Italy, Sicily
Maintenance	Medium	Medium

Care Tips

Potato

✓Plant seed potatoes 4 inches deep, 12 inches apart.
✓Hill soil around stems as they grow.
✓Don't eat green potatoes — they contain solanine.
✓Harvest 2 weeks after vines die.

Sweet Pea

✓Soak seeds overnight before planting.
✓Provide trellis or netting.
✓Pick flowers frequently to prolong bloom.
✓Needs cool weather — plant early spring or fall in warm areas.

Which Plant Is Right for Your Garden?

Choose Potato if you don't mind medium maintenance. It thrives in full sun with medium water in zones 3–10.

Choose Sweet Pea if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.

Plant them together? Both overlap in zones 3–10. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Potato and Sweet Pea grow in the same hardiness zone?

Potato grows in USDA zones 3-10, while Sweet Pea grows in zones 2-11. Both plants can grow together in zones 3 through 10.

Do Potato and Sweet Pea have the same sun and water needs?

Potato needs full sun and medium water, while Sweet Pea needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Potato or Sweet Pea?

Sweet Pea grows taller at 6' compared to Potato at 2'. Sweet Pea spreads 1' while Potato spreads 1' 6".

Are Potato and Sweet Pea deer resistant?

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

Which is easier to maintain, Potato or Sweet Pea?

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