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Container growing guide

Nasturtium

Nasturtium

Edible peppery flowers and leaves. Trails beautifully from hanging pots.

HerbeasyseasonalCool seasonWet season
Curated guide
87terrace 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
Nasturtium monthly sowing suitability
MonthSuitability
JanuaryNot recommended
FebruaryNot recommended
MarchNot recommended
AprilGood
MayGood
JuneGood
JulyGood
AugustGood
SeptemberGood
OctoberBest
NovemberBest
DecemberGood
Growing requirements
Sun
5–7 hours direct light
Water
Medium
Shade tolerance
Medium
Container
12L (12 inch pot)
Soil depth
20 cm
Support
None
First harvest
40 days from sowing
Lifecycle
120 days
Timeline

Germination: about 8 days.

Flowering begins: around day 35.

First harvest: around day 40.

Harvest window: roughly 45 days.

Terrace notes for Nasturtium

Poor soil actually encourages more flowers — perfect for lazy terrace corners.

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

  • Beginner safe
  • Low effort
  • Terrace star

Questions about growing Nasturtium

Can I grow Nasturtium in a balcony or terrace?

Yes, Nasturtium can be grown in a balcony or terrace if you can provide 5-7 hours of direct light and a container around 12L.

Which month is best to sow Nasturtium?

The best sowing months for Nasturtium are Oct–Nov. Check the monthly calendar on this page before sowing outside that window.

What size pot or grow bag does Nasturtium need?

Nasturtium works best in a container around 12L with at least 20 cm of soil depth and reliable drainage.

How many days does Nasturtium take to harvest?

Nasturtium usually reaches first harvest in about 40 days from sowing, with a harvest window of roughly 45 days.

What are common pests and diseases for Nasturtium?

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

Plan Nasturtium on your terrace

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

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