The Resilient Canadian Garden

Pick your nearest place.

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EstimateRough guide. Check your zone on the Natural Resources Canada hardiness map before buying plants.

Your plan

General guidance, not sourcedGeneral guidance. See Sources.

  1. FoundationResilient turfgrass

  2. BorderWeed-suppressing groundcover

  3. StructureFour-season shrub

  4. HubPollinator perennial trio

Bar = relative height.

Calendar and bed

EstimateDates are estimates. Frost after the average date is normal: cover tender plants.

Pick a place above.

Pick a place above.

Last spring frost: Agriculture and Agri-Food Canada (AAFC), 30-year Average Last Spring Frost (0 C), 1991-2020, 10 km grid. Sowing and maturity: Penn State Extension, York County Master Gardeners, Seed Planting Guide. See Sources.

Bed grid

Tap a square, then pick a crop and count. Arrow keys move.

Use the arrow keys to move between squares. Choose a crop and a count for the selected square below the grid.

Place data

Day of year (1 = 1 January) from the AAFC files at each place. Spring: last frost at 0 C. Fall: first frost at -2 C. None: no value in the file. Coordinates: Natural Earth.

PlaceLatitudeLongitudeSpring day valueFall day value

How the layers work

Foundation

The right turf or turf alternative reduces water use, fertilizer and mowing. A mix suited to your climate roots deeply and crowds out weeds from the ground up.

Border

A dense, low groundcover is one of the most effective ways to suppress weeds. This "green mulch" also holds soil moisture and replaces yearly wood mulch.

Structure

One key shrub acts as the garden's backbone. Pick one with interest in several seasons: flowers, foliage, fall colour and winter bark. It also gives birds shelter and food.

Hub

Three perennials that flower in sequence give pollinators food from spring to fall, including bees, butterflies and other beneficial insects.

Choosing native and well-adapted plants saves work and restores habitat for local wildlife. This sentence is the guide's own summary.

General guidance, not sourcedThese four paragraphs are general guidance. See Sources.

Effort and benefits

Maintenance effort

EstimateIllustrative scores set by the guide author on a 0 to 100 scale. They are not measured from a study.

Values
TaskConventionalResilient
Watering8025
Weeding7020
Fertilizing6010
Pest control505

Garden benefits

EstimateIllustrative scores set by the guide author on a 0 to 10 scale. They are not measured from a study.

Values
BenefitResilientConventional
Pollinator support93
Drought tolerance84
Wildlife resistance93
Four-season interest85
Weed suppression92

Next steps

General guidance, not sourcedAmounts and timing are general guidance. See Sources.

  1. Prepare the soil

    Before planting, mix a 2-4 inch layer of compost into the bed. Healthy soil is the base of a low-maintenance garden and cuts the need for fertilizer later.

  2. Plant and water

    While new plants establish, water deeply once or twice a week instead of sprinkling daily. This pushes roots down and makes plants more drought tolerant over time.

  3. Add natural mulch

    After planting shrubs and perennials, spread 2-3 inches of wood chips or shredded leaves around them, kept off the stems. Mulch holds moisture, suppresses weeds and feeds the soil as it breaks down.

Find plants and local advice

Opens a web search.

Native plant nurseries Invasive species councils

Sources

General guidance, not sourcedOnly the planting calendar is sourced.

Check your zone on the Natural Resources Canada hardiness map. Ask a local nursery.

Planting calendar sources

Frost dates: Agriculture and Agri-Food Canada, "30-year Average Last Spring Frost (0 C)", 1991-2020 normal, file lt_lsf0_gs_1991_2020.tif (10 km grid, definition in the AAFC Data Product Specification, ISO 19131). Record: open.canada.ca dataset d316cd06-04ae-4275-917d-788ae75c1b2b. Files: agriculture.canada.ca file listing. Retrieved 30 October 2026. The values for the 56 places were read from the file by the guide author at the cell holding each place.

First fall frost: Agriculture and Agri-Food Canada, "30-year Average First Fall Frost (-2 C)", file lt_fff-2_gs_1991_2020.tif (10 km grid; file dated 28 March 2024 in the AAFC file listing). Record: open.canada.ca dataset 858250ec-bc62-4889-90bc-ef8b337ec87d (licence field: Open Government Licence - Canada; record modified 22 April 2024). Files: agriculture.canada.ca file listing. Reference period of the file used: 1991-2020 (the record text states 1961-2010 and lists four periods; this guide uses the 1991-2020 file to match the spring dates). Retrieved 31 October 2026. Read at the same cell as the spring value for each of the 56 places; six British Columbia coast places have no value in the file.

Crop source by crop: snap bean, beets, broccoli, cabbage, carrots, cauliflower, collards, corn, cucumber, kale, kohlrabi and cantaloupe and melons all use the Penn State guide above. A Canadian provincial or federal planting table was sought on 31 October 2026; the Ontario Ministry of Agriculture page could not be read (access refused), and the other Canadian pages found are commercial or have no reuse terms, so none is used.

Crops: Penn State Extension, York County Master Gardeners, "Seed Planting Guide" (Vegetable-Seed-Planting-Guide.pdf), extension.psu.edu. Retrieved 30 October 2026. The crops in the calendar are taken from the first page of that table.

Place coordinates: Natural Earth populated places (public domain), retrieved 30 October 2026.

Contains information licensed under the Open Government Licence - Canada. Read the licence text The frost values were adapted by the guide author into a table of places. Agriculture and Agri-Food Canada does not endorse this guide.

Help

  1. Pick your nearest place.
  2. Scroll for your plan and planting calendar.
  3. Bed grid: tap a square, pick a crop and count.

Saved on this device only: look, zone, place, bed. Dates are estimates. To print: Landscape, Letter.

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AAFC 30-year Average Last Spring Frost (0 C), 1991-2020

Licence: Open Government Licence - Canada, version 2.0, as stated in the dataset record. Publisher: Agriculture and Agri-Food Canada. The licence grants a worldwide, royalty-free, perpetual, non-exclusive right to use the information, including to copy, modify, publish, adapt and distribute it, and requires this attribution.

Contains information licensed under the Open Government Licence - Canada. Licence text: https://open.canada.ca/en/open-government-licence-canada . Dataset record: https://open.canada.ca/data/en/dataset/d316cd06-04ae-4275-917d-788ae75c1b2b . Reference period 1991-2020 (the record page also lists other 30-year periods). Retrieved 30 October 2026. This guide reduces the 10 km grid to 56 place values. Agriculture and Agri-Food Canada does not endorse this guide. The licence does not cover personal information, third party rights, official names, logos or symbols, or information under other intellectual property rights.

AAFC 30-year Average First Fall Frost (-2 C), 1991-2020 file

Licence: Open Government Licence - Canada, as stated in the licence field of the dataset record (ca-ogl-lgo), read 31 October 2026. Publisher: Agriculture and Agri-Food Canada. The licence grants a worldwide, royalty-free, perpetual, non-exclusive right to use the information, including to copy, modify, publish, adapt and distribute it, and requires this attribution.

Contains information licensed under the Open Government Licence - Canada. Licence text: https://open.canada.ca/en/open-government-licence-canada . Dataset record: https://open.canada.ca/data/en/dataset/858250ec-bc62-4889-90bc-ef8b337ec87d . This guide reduces the 10 km grid to 56 place values. Agriculture and Agri-Food Canada does not endorse this guide. The licence does not cover personal information, third party rights, official names, logos or symbols, or information under other intellectual property rights.

Penn State seed planting guide and Natural Earth

Sowing offsets and days to maturity are facts read from the Penn State Extension York County Master Gardeners Seed Planting Guide; no text or layout is copied. Place coordinates are from Natural Earth populated places, which is in the public domain.

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