How to Grow Ground Cherries Canada
On this page
- Ground Cherry (Physalis pruinosa)
- Regional Planting Calendar
- Quick Facts
- At a Glance
- Soil & Growing Conditions
- Growth Stages
- Harvest & Storage
- Pests
- Plan your Ground Cherries planting
- What the research guides add
- Ground cherries in Canada: climate data
- Growing Ground Cherry in another region
- Sources
- Frequently Asked Questions
In Canada, ground cherries planted out mid May to late May.
Timing is the decision that matters most in Canada: there are 6 separate regional planting out windows, ranging from early April in Pacific Coastal Mild to mid June in Far North & Alpine.
The short answer
- Plant out
- Mid May to late May
- Site
- 8+ hours of sun, soil pH 6–6.5
Core growing advice on this page is checked against named horticultural sources — see References.
Ground Cherry (Physalis pruinosa)
3 sources cited · Verified
Regional Planting Calendar
| Region | Plant out |
|---|---|
| Central Continental derived | mid May to late May |
| Prairies & Short-Season Continental derived | early June to mid June |
| Pacific Coastal Mild derived | early April to mid April |
| Far North & Alpine derived | mid June to early July |
| Atlantic Maritime derived | late May to early June |
| Inland Valleys & Southern Lakes derived | mid May to late May |
Rows marked derived are interpolated between regions our sources do state, because no source we consulted gives a figure for that region specifically. They are deliberately wider to reflect that uncertainty.
Central Continental - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 30 April (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 14 May to 28 May. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Prairies & Short-Season Continental - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 21 May (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 4 June to 18 June. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Pacific Coastal Mild - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 18 March (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 1 April to 15 April. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Far North & Alpine - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 5 June (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 19 June to 3 July. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Atlantic Maritime - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 7 May (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 21 May to 4 June. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Inland Valleys & Southern Lakes - detail & sources
DERIVED from this region's own frost normal, not quoted for the region. Start seed indoors 6-8 weeks before the last frost date; transplant outdoors 2-4 weeks after frost danger passes, same frost-relative rule as the US. Applied to a mean last frost of 30 April (NOAA NCEI 1991-2020 for the USA; Environment and Climate Change Canada normals for Canada), that gives 14 May to 28 May. Your own local frost date is what matters — a region spans a range, and this figure comes from one representative station within it.
Quick Facts
At a Glance
Soil & Growing Conditions
Growth Stages
Harvest & Storage
Pests
Plan your Ground Cherries planting
When to sow and plant Ground Cherries depends on your own frost dates. Check the Canada vegetable planting calendar. To work out where it fits in your beds, sketch your plot in the free Garden Layout Planner.
What the research guides add
Ground cherries are grown like tomatoes, and the three extension services agree on the timings that matter.
- Start seed indoors about six to eight weeks before the last frost date; it can take up to three weeks to germinate. Harden off the transplants and set them out when the garden soil is well warmed. (Penn State Extension, K-State Extension, NC State Extension)
- Treat them like tomatoes and wait until the danger of frost has passed before planting out. (K-State Extension, Penn State Extension)
- They need room: most plants are 1 to 3 feet tall but sprawl, and both Penn State and K-State advise spacing them 4 feet apart. (Penn State Extension, K-State Extension)
- The fruit drops to the ground when ripe, so lay a mulch of grass clippings, straw or pine bark under the plants to make the fallen fruit easy to find (Penn State, K-State). (Penn State Extension, K-State Extension)
- They do best in full sun in moist, well-drained soil (NC State). (NC State Extension)
- K-State warns that the leaves and unripe fruit are toxic. (K-State Extension)
Ground cherries in Canada: climate data
| Station | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Edmonton, AB | 24 May | 12 Sep | 110 |
| Winnipeg, MB | 23 May | 22 Sep | 121 |
| Charlottetown, PE | 16 May | 17 Oct | 153 |
| Toronto, ON | 30 Apr | 16 Oct | 168 |
| Vancouver, BC | 18 Mar | 10 Nov | 237 |
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
- Penn State Extension: Growing Ground Cherries
- Kansas State University Research and Extension (Butler County): Ground Cherry
- NC State Extension: Physalis (Plant Toolbox)
Section researched and checked on 24 October 2026 by the SoilCommander Editorial Team. How we check facts: editorial policy.
Growing Ground Cherry in another region
Sowing dates, frost timing and local advice differ by country. Use the guide for where you garden.
Sources
The full list of 3 sources behind this guide (K-State Research and Extension, Butler County, Penn State Extension, Plants For A Future (PFAF)) is in the references of our UK guide to ground cherries; they describe the plant itself, which is the same wherever it grows.
Frequently Asked Questions
When should I plant ground cherries out in Canada?
In Pacific Coastal Mild, from early April. In Far North & Alpine, wait until mid June. Treat these as a guide rather than a fixed date — the governing rule is to plant out only once frost risk has passed and temperatures are reliably warm enough.
What soil pH do ground cherries need?
A pH of about 6–6.5. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.
Plan next season before the problems start
Short-season growing is arithmetic before it is technique: days to maturity against frost-free days decides what will finish at all. The Canada Garden Planner does that subtraction for your region before you sow.
Get the Canada Garden Planner →Instant PDF download · Written for Canadian growing conditions
How this guide is put together
The growing data on this page — sowing windows, pests, diseases, soil and site requirements — comes from named horticultural sources, listed in References below, checked against Canadian hardiness-zone and frost-date data, with provincial agriculture and university extension sources cited directly where one exists for a crop. An automated pipeline assembles that verified data into the page you're reading: it selects which facts to lead with and builds the surrounding prose and layout. It does not invent a date, a source or a number — where a verified value for a field isn't available, the page leaves it out rather than guessing. A person reviews and publishes each page; nothing goes live unverified.
Vegetable Growing Guides Canada
Last verified 2026-10-24
Related guides
More from the same group (the potato & tomato family):
Growing advice for your part of Canada
Timing and conditions change a lot inside one country. These guides cover frost dates and growing seasons region by region.
Where To Go From Here
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Keep going
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.