Bleeding Heart vs Sweet Pea

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

Bleeding Heart

Lamprocapnos spectabilis

Papaveraceae · flowers

Deer ResistantLow Maintenance

Sweet Pea

Lathyrus odoratus

Fabaceae · flowers

Deer ResistantMedium Maintenance

Hardiness Zone Range

Bleeding Heart (Zones 3-9)

Sweet Pea (Zones 2-11)

Overlap: Both grow in zones 3–9

Detailed Comparison

Feature	Bleeding Heart	Sweet Pea
Scientific Name	Lamprocapnos spectabilis	Lathyrus odoratus
Family	Papaveraceae	Fabaceae
Category	flowers	flowers
Sun	⛅ Part Shade	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Moist	Rich, Well-drained
Height	3'	6'
Spread	2'	1'
Bloom Season	Spring	Spring-Summer
Bloom Color	Pink, White	Mixed
Growth Rate	Medium	Fast
Native Region	East Asia	Italy, Sicily
Maintenance	Low	Medium

Special Traits

Bleeding Heart

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Sweet Pea

No — EdibleYes — Deer ResistantNo — Drought Tolerant

Care Tips

Bleeding Heart

✓Plant ferns nearby to fill space when bleeding heart goes dormant.
✓Prefers cool, moist conditions.
✓Self-seeds in ideal conditions.
✓Toxic if ingested.

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 Bleeding Heart if you want a low-maintenance plant, and want deer resistance. It thrives in part shade with medium water in zones 3–9.

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 3–9. However, they have different sun needs, so plan your garden layout carefully.

View Bleeding HeartProfile →View Sweet PeaProfile →

Frequently Asked Questions

Can Bleeding Heart and Sweet Pea grow in the same hardiness zone?

Bleeding Heart grows in USDA zones 3-9, while Sweet Pea grows in zones 2-11. Both plants can grow together in zones 3 through 9.

Do Bleeding Heart and Sweet Pea have the same sun and water needs?

Bleeding Heart needs part shade and medium water, while Sweet Pea needs full sun and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Bleeding Heart or Sweet Pea?

Sweet Pea grows taller at 6' compared to Bleeding Heart at 3'. Sweet Pea spreads 1' while Bleeding Heart spreads 2'.

Are Bleeding Heart and Sweet Pea deer resistant?

Yes, both Bleeding Heart and Sweet Pea are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Bleeding Heart or Sweet Pea?

Bleeding Heart has low maintenance while Sweet Pea has medium maintenance. Bleeding Heart may be easier for beginning gardeners to manage.

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Detailed Comparison

Feature	Bleeding Heart	Sweet Pea
Scientific Name	Lamprocapnos spectabilis	Lathyrus odoratus
Family	Papaveraceae	Fabaceae
Category	flowers	flowers
Sun	⛅ Part Shade	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Rich, Moist	Rich, Well-drained
Height	3'	6'
Spread	2'	1'
Bloom Season	Spring	Spring-Summer
Bloom Color	Pink, White	Mixed
Growth Rate	Medium	Fast
Native Region	East Asia	Italy, Sicily
Maintenance	Low	Medium

Care Tips

Bleeding Heart

✓Plant ferns nearby to fill space when bleeding heart goes dormant.
✓Prefers cool, moist conditions.
✓Self-seeds in ideal conditions.
✓Toxic if ingested.

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 Bleeding Heart if you want a low-maintenance plant, and want deer resistance. It thrives in part shade with medium water in zones 3–9.

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 3–9. However, they have different sun needs, so plan your garden layout carefully.

Frequently Asked Questions

Can Bleeding Heart and Sweet Pea grow in the same hardiness zone?

Bleeding Heart grows in USDA zones 3-9, while Sweet Pea grows in zones 2-11. Both plants can grow together in zones 3 through 9.

Do Bleeding Heart and Sweet Pea have the same sun and water needs?

Bleeding Heart needs part shade and medium water, while Sweet Pea needs full sun and medium water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Bleeding Heart or Sweet Pea?

Sweet Pea grows taller at 6' compared to Bleeding Heart at 3'. Sweet Pea spreads 1' while Bleeding Heart spreads 2'.

Are Bleeding Heart and Sweet Pea deer resistant?

Yes, both Bleeding Heart and Sweet Pea are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Bleeding Heart or Sweet Pea?

Bleeding Heart has low maintenance while Sweet Pea has medium maintenance. Bleeding Heart may be easier for beginning gardeners to manage.