Vol. IX · No. 40 Brackwater Seed Library Wednesday, 30 September 2026
The Seed Almanac
Fig. 17. Sweet pea ‘Cupani’. Fabaceae.

Sweet pea ‘Cupani’

Lathyrus odoratus · Flower · No. 17

Sow under cover
Jan–Mar, Oct–Nov
Sow outdoors
Mar–Apr
Flowers
Jun–Sep
Germination
10–21 days
Spacing
20 cm in the row, 45 cm between rows
Days to flower
90–120 from sowing
Sun
Full sun
Seed saving
Easy

20 seeds per packet
12 packets on the shelf

Months for Sweet pea ‘Cupani’
JFMAMJJASOND
Under coverJanuaryFebruaryMarchOctoberNovember
OutdoorsMarchApril
FlowersJuneJulyAugustSeptember

Notes

Maroon and violet, scented. Soak seed overnight. Pick flowers daily; leave the last plants to set pods. Seed is toxic — do not eat.

Saving seed · Easy

Self-pollinating annual. Seed ripens the same season. Keep 3 m from other varieties of the same plant.

  1. Mark two or three healthy plants early.
  2. Leave the fruit, pod or head to ripen fully on the plant.
  3. Dry the seed 7–14 days on paper, out of direct sun.

Same family · Fabaceae

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