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Outdoor & terraceOnion

Container growing guide

Onion

Pyaaz / Ulligadda

A long-haul bulb crop. Not fast, but storable and steadily in demand.

BulbmediumseasonalCool seasonWet season
Verified guide
60terrace fit
Open in Grow

Planting calendar

Month-by-month sowing suitability (northern-hemisphere reference — the app shifts calendars for your latitude). Best months to sow: Oct–Nov.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Not recommendedPossibleGoodBest
Onion monthly sowing suitability
MonthSuitability
JanuaryPossible
FebruaryPossible
MarchPossible
AprilPossible
MayNot recommended
JuneGood
JulyGood
AugustGood
SeptemberGood
OctoberBest
NovemberBest
DecemberGood
Growing requirements
Sun
68 hours direct light
Water
Medium
Shade tolerance
Low
Container
15L (15 inch grow bag)
Soil depth
20 cm
Support
None
First harvest
110 days from sowing
Lifecycle
140 days
Timeline

Germination: about 10 days.

Transplant: around day 40.

Flowering begins: around day 0.

First harvest: around day 110.

Harvest window: roughly 20 days.

Terrace notes for Onion

A patience crop with great storage life. Spring onions are a faster, easier alternative if you want quick returns.

Care tips

  • Transplant pencil-thick seedlings for good bulbing.
  • Stop watering once tops start to fall over.
  • Cure harvested bulbs in shade before storing.
Common pests
  • Thrips
Common diseases
  • Purple blotch
  • Basal rot

Plan Onion on your terrace

Track Onion in Grow for location-aware sowing windows, care tasks and inventory tracking.

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