How to Grow Swiss Chard Canada
On this page
In Canada, swiss chard is ready to harvest 50–70 days after planting.
The short answer
- Ready in
- 50–70 days
- Site
- 4+ hours of sun, soil pH 6–6.5
- Biggest risk
- Grey mould
Core growing advice on this page is checked against named horticultural sources — see References.
Swiss chard (Beta vulgaris subsp. cicla)
5 sources cited · Verified
Soil & Growing Conditions
Water: RHS: water "regularly until well established", then "water during long dry spells"; container plants need "regular watering throughout their growing period". Chard "doesn't usually need feeding". Univ. of Maryland: "Keep plants uniformly supplied with moisture for best performance. Water deeply and regularly during dry periods".
Soil pH range
Span reflects genuine variation between the cited authorities, not a single agreed figure.
Quick Facts
| Factor | Value |
|---|---|
| Soil pH | 6 - 6.5 |
| Sunlight | 4-8 hours direct sun |
| Germination temp | 12.8°C |
| Optimal growing temp | 15-25°C |
| Minimum growing temp | 5°C |
| Time to harvest | 50-70 days |
| Soil texture | RHS: "rich, moisture-retentive, free-draining soil". |
| Drainage | RHS: free-draining yet moisture-retentive; grow in "full sun, or with some light shade in summer". |
| Lifecycle | biennial (requires two growing seasons, but treated as an annual) |
| Edible parts | leaves, thick stems |
At a Glance
Growth Stages
| Stage | BBCH | Notes |
|---|---|---|
| Sowing & germination | 0 | Sow 2.5cm deep, large seeds spaced 10cm apart, rows 45cm apart. RHS. |
| Thinning & establishment | 3 | Thin seedlings to 30cm apart, or 5cm apart if growing for a mini-leaf crop. RHS. |
| Cropping (cut-and-come-again) | 5 | Pick outer leaves cleanly at the base to encourage regrowth, or strip all the leaves from an established plant and let it recover before picking again. A spring sowing gives repeated harvests right through summer. RHS. |
| Overwintering / bolting | 6 | Chard is hardy and survives winter outdoors without protection, though growth stops in the cold; a July sowing carries leaves through to the following spring. In hot weather plants may bolt -- removing flower stems as they form extends the harvest, though flowering eventually happens regardless. RHS. |
Harvest & Storage
When to pick: RHS: pick leaves once "at least 30cm (1ft) tall", or young leaves "up to about 5cm (2in) long" for salads. RHS gives no time from sowing to harvest and no storage method. Univ. of Maryland: "Young leaves (smaller than 4 inches) may be eaten fresh in salads", or harvest "after maturity when they are larger and have slightly tougher stems".
Storage
Univ. of Maryland: "Store in very cold (32 degrees F), moist (95% relative humidity) environment. Store in the refrigerator in a vented mesh or plastic bag". RHS states no storage method.
Diseases
Pests
Chard, Bed to Bunch
Plan your Swiss Chard planting
When to sow and plant Swiss Chard 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.
Growing Swiss chard 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 5 sources behind this guide (FAO EcoCrop, Royal Horticultural Society, University of Maryland Extension and others) is in the references of our UK guide to chard; they describe the plant itself, which is the same wherever it grows.
Frequently Asked Questions
How long does chard take to grow?
Typically 50–70 days, depending on cultivar and growing conditions.
What soil pH does chard 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.
What problems affect chard?
Our data links 2 diseases and 3 pests to this crop. See the sections above for each one and how to manage it.
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
Related Problem Guides
Last verified 2026-08-06
Swiss Chard in the month-by-month guides
The Canada month guides that include swiss chard:
More from the same group (roots & tubers):
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
Take this crop from reading into a written plan for your own beds.
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.