Cut flowers
Sweet pea Planting Calculator
Lathyrus odoratus
Everything you need to plan Sweet pea: recommended spacing, how many plants and seeds you'll need, when to start, and when to expect blooms. Defaults come from grower references and every value is editable.
At a glance
- Recommended spacing
- 8″
- Range 6–8″
- Planting pattern
- Two rows per bed
- Time to first production
- 75–90 days from sowing
- Succession planting
- Recommended
- Every 14 days
- Start indoors
- 10 weeks before
- before last frost
- Production pattern
- Cut-and-come-again
- Hardy annual
Plan your Sweet pea beds
Prefilled with Sweet pea's recommended spacing. Adjust your bed size to get plant counts, seeds to start, and tray requirements.
Loads recommended spacing and planting pattern. You can override anything.
ft
ft
Contextual only for two-row.
in
Default 8″Range 6–8″
Your plan
150
Total plants
75 per row × 2 rows
- Seeds to start (10% buffer)
- 165
- 72-cell trays needed
- 3
- 128-cell trays needed
- 2
More Sweet pea planning
Planning notes
Cut-and-come-again. A planting keeps producing new stems over a relatively long harvest period when it is picked regularly, so successive plantings are usually spaced farther apart.