Safe to Plant

Lily of the valley · Lahore, Punjab, Pakistan

When to sow lily of the valley in Lahore

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

27 January

In Lahore, on your chosen risk.

Ready to pick

1 May - 30 Jun

If you plant at the start of the window.

The average last frost. Half of all years are later than this.

Step by step in Lahore

Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.

In flower

1 May - 30 Jun

Frost tolerance
Very-hardy
Damaged below
-35°C (-31°F)
Hardy to
Zone 2a–7b
Spacing
15 cm
Sowing depth
30 mm (1.2 in)
Sun
Shade

Lily of the valley through the year

Against the frost risk in Lahore

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Harvest Today

Why these dates

Plant the pips - single-budded root divisions - while dormant in autumn or very early spring, 3cm deep with the bud just below the surface. Site it where spreading is welcome; it is difficult to remove once established and will out-compete smaller shade plants.

Hardy to about -35C and needs a cold winter to flower, which is why it performs poorly in mild-winter climates. All parts are seriously poisonous, including the water in a vase of cut stems.

Lily of the valley are planted once and then left in place, so there is no sowing offset to resolve. What matters in Lahore is the shape of the year: this crop is dormant through the winter and is planted while it sleeps, any time between leaf fall in autumn and the restart of growth in spring, so long as the ground is neither frozen nor waterlogged. That is why the window below spans the cold months rather than sitting in the middle of the growing season.

Lahore sits in zone 10b, which is milder than this crop wants, and a winter that never really arrives is its own problem. The dates below still describe the right time of year; the open question is survival rather than timing.

See every crop timed for Lahore →

Growing lily of the valley in Lahore

When will lily of the valley be ready to harvest in Lahore?

Expect to start picking around 1 May - 30 Jun, based on 150 to 190 days to maturity from the planting date calculated for this location.

How much frost will lily of the valley tolerate?

Hardy to about -35C and needs a cold winter to flower, which is why it performs poorly in mild-winter climates. All parts are seriously poisonous, including the water in a vase of cut stems.