Bunching Onion (Deep Purple)

Spacing

1 in(144 / sqft)

Trellis

no

Seed indoor

Feb 18(-8 w)

Transplant

Mar 18(-4 w)

Harvest

~8–10 weeks from sowing

Last fall harvest

Nov 12(+4 w)

Succession

every 3-4 weeks

Water

1-2 per week

Seed shelf life

1–2 y

Lifecycle

annual

Seed source

Johnny's Selected Seeds

Sown dense as scallions (6-8 seeds per cluster) and harvested whole. Hardy enough to keep producing into light frost. Hill soil up the base 2-3 times for longer white shanks.