Sweet Pea
Lathyrus odoratus
About it
- Kind
- Flowers · Annual
- Family
- Fabaceae
- Mature size
- to 6 ft × 2 ft
- Blooms
- May–Jul
- Hardiness zones
- Zones 2–11
- Sun
- Full sun
- Spacing
- 6 in apart, rows 36 in
- Soil depth in a pot
- At least 10 in
- Soil pH
- 6.5–7.5
- Water
- About every 7 days
When to plant
- Ready
- About 80 days
Based on your last frost date. Outside the US, check local advice.
Planting partners
No cited companion planting notes for Sweet Pea yet.
Safety for pets and children
- Cats No information in our sources
- Dogs No information in our sources
- Horses No information in our sources
- Children No information in our sources
"No information" means our sources do not say, not that the plant is harmless. A non-toxic listing is not a reason to let anyone eat a plant.
Pests and diseases
No pest or disease notes for Sweet Pea yet.
Check the label and your local extension service before using any product.
Where this comes from
- family npgsweb.ars-grin.gov ↗ GRIN page: Lathyrus odoratus L.
- Most facts NC State Extension ↗ Backfilled by 0041. Pre-0041 rows recorded one source for the whole row; per-field attribution was never captured and is not invented here.
- water frequency days Clemson HGIC ↗ Clemson HGIC "Growing Annuals": "Most annuals need at least 1 to 1½ inches of water per week from rain or irrigation." and "Allow the soil surface to dry before watering again." This is the factsheet's general guidance for annual flowers, not a figure published for this plant.