How to Grow Shepherd's Purses Canada

At a Glance

Quick Facts

Factor	Value
Soil pH	5 - 8
Soil texture	chalk, clay, loam or sand (RHS)
Drainage	well-drained
Lifecycle	annual or biennial
Edible parts	leaves, seeds, flowering shoots, root

Soil & Growing Conditions

Water: moist but well-drained or well-drained (RHS)

Soil pH range

5 8

Span reflects genuine variation between the cited authorities, not a single agreed figure.

Growth Stages

Stage	BBCH	Notes
Sowing	0	Sow seed 6mm deep in early spring; self-sows readily once established (RHS, Alibaba Gardening).
Rosette formation	1	Forms a rosette of toothed leaves, often overwintering (RHS).
Flowering	6	Tiny white flowers bloom spring through autumn on stems to 50cm (RHS).
Seed pod / harvest	8	Distinctive heart-shaped seed pods follow; harvest leaf rosettes at ~10cm for salads before flowering (RHS, PFAF).

Harvest & Storage

When to pick: Harvest rosettes at around 10cm height for salads, before flowering, for the mildest cress-like flavour; leaves also usable cooked (cabbage-like taste). Seeds can be ground for flavouring; root can be dug fresh or dried as a ginger substitute (PFAF).

Diseases

White blister

low

Albugo candida

RHS names this directly: may be susceptible to white blister.

What the research guides add

Shepherd’s purse is a common annual weed that is also edible, and NC State notes how hardy it is.

• A herbaceous annual in the mustard family that prefers moist, well-drained soil in full sun to partial shade; it tolerates drought, shade and soil compaction, and temperatures down to 10°F. (NC State Extension)
• Seeds germinate in spring and fall; each seedpod holds around 20 seeds, and the plant spreads by self-seeding. (NC State Extension)
• The leaves, seeds and flowering shoots are edible raw or cooked; young leaves are best added to salads before flowering. (NC State Extension)

Shepherd's purse in Canada: climate data

Frost dates and frost-free days are the median values for the stations in Environment and Climate Change Canada climate normals with the highest data-quality rating (1981–2010 normals).

Sources for this section

• NC State Extension: Capsella bursa-pastoris (Plant Toolbox)

Section researched and checked on 25 October 2026 by the SoilCommander Editorial Team. How we check facts: editorial policy.

Sources

The full list of 4 sources behind this guide (PFAF (Plants For A Future), Plants For A Future (PFAF), Royal Horticultural Society and others) is in the references of our UK guide to shepherd's purse; they describe the plant itself, which is the same wherever it grows.