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Outdoor & terraceSpring Onion

Container growing guide

Spring Onion

Ulli Kada / Scallion

Cut-and-come-again onion greens. Regrows from kitchen scraps or seed.

Bulbeasyyear-roundCool seasonWet seasonWarm season
Curated guide
88terrace 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: Jun–Dec.

Year-roundSpring Onion is year-round — viable most months when you manage containers, water, and shade. Peaks may still vary.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Not recommendedPossibleGoodBest
Spring Onion monthly sowing suitability
MonthSuitability
JanuaryGood
FebruaryGood
MarchGood
AprilGood
MayGood
JuneBest
JulyBest
AugustBest
SeptemberBest
OctoberBest
NovemberBest
DecemberBest
Growing requirements
Sun
5–7 hours direct light
Water
Medium
Shade tolerance
Medium
Container
8L (10 inch pot)
Soil depth
20 cm
Support
None
First harvest
30 days from sowing
Lifecycle
120 days
Timeline

Germination: about 8 days.

Flowering begins: around day 35.

First harvest: around day 30.

Harvest window: roughly 45 days.

Terrace notes for Spring Onion

Suitable for Hyderabad terraces with regular watering and good drainage.

Care tips

  • Water when the top inch of soil dries.
  • Harvest regularly to encourage new growth.
Common pests
  • Aphids
  • Whitefly
Common diseases
  • Leaf spot
  • Powdery mildew

Traits

  • Fast harvest
  • Beginner safe
  • Monsoon friendly
  • Year-round
  • Low effort
  • Terrace star

Questions about growing Spring Onion

Can I grow Spring Onion or Ulli Kada / Scallion in a balcony or terrace?

Yes, Spring Onion can be grown in a balcony or terrace if you can provide 5-7 hours of direct light and a container around 8L.

Which month is best to sow Spring Onion?

The best sowing months for Spring Onion are Jun–Dec. Check the monthly calendar on this page before sowing outside that window.

What size pot or grow bag does Spring Onion need?

Spring Onion works best in a container around 8L with at least 20 cm of soil depth and reliable drainage.

How many days does Spring Onion take to harvest?

Spring Onion usually reaches first harvest in about 30 days from sowing, with a harvest window of roughly 45 days.

What are common pests and diseases for Spring Onion?

Watch for Aphids, Whitefly and Leaf spot, Powdery mildew. Start checks early and improve airflow if leaves stay wet.

Plan Spring Onion on your terrace

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

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