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How to Grow Oraches Canada | Complete Growing Guide

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Orach (Atriplex hortensis)

A mature orach leaf in autumn colours — “Atriplex hortensis sl5” by Stefan.lefnaer is licensed under CC BY-SA 4.0. Source: Wikimedia Commons

4 sources cited · Verified

Oraches (Atriplex hortensis) — annual.

Core growing advice on this page is checked against named horticultural and university-extension sources — see References.

Quick Facts

A mature orach leaf in autumn colours — “Atriplex hortensis sl5” by Stefan.lefnaer is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Atriplex hortensis sl5” by Stefan.lefnaer is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Factor Value
Soil pH 6.5 - 7.5
Optimal growing temp 12-28C
Drainage Well-drained
Lifecycle annual
Edible parts leaves

Soil & Growing Conditions

A cluster of young orach seedlings growing in soil — “Atriplex hortensis var. rubra 2023-04-30 4050” by Salicyna is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Atriplex hortensis var. rubra 2023-04-30 4050” by Salicyna is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

Soil pH range

6.5 7.5

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

Growth Stages

A young pink-purple orach seedling — “Atriplex hortensis var. rubra 2023-05-07 4583” by Salicyna is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Atriplex hortensis var. rubra 2023-05-07 4583” by Salicyna is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Stage BBCH Notes
Sowing 0 Direct sow 2-3 weeks before the last frost date, seeds 1/4-1/2in deep; germinates in 7-14 days (Seasonal Gardening).
Rapid leaf growth 3 Grows rapidly to 3-4ft; water freely during dry weather to avoid bolting (Seasonal Gardening, RHS).
Flowering 6 Small, insignificant clusters of reddish-green flowers borne in summer (RHS).
Harvest and cut-back 8 Harvest young, tender leaves as a spinach substitute; cut back after flowering to prolong leaf production (RHS, Seasonal Gardening).

Harvest & Storage

Close-up of orach leaf texture with a scale bar — “Atriplex hortensis sl25” by Stefan.lefnaer is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Atriplex hortensis sl25” by Stefan.lefnaer is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

When to pick: RHS: sow successionally to harvest leaves throughout the growing season; water freely in dry weather to prevent bolting. UMD: grows best in spring and fall but "can tolerate summer heat" better than true spinach.

Storage

Best used fresh

References

  1. country=INTL

  2. country=INTL

  3. country=USA

  4. country=UK

4 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.

Frequently Asked Questions

What soil pH do oraches need?

A pH of about 6.5–7.5. 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.

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SoilCommander Editorial Team

Canadian vegetable growing guides · Checked against provincial agriculture & university extension guidance

Every SoilCommander guide is written and maintained by our editorial team for real Canadian growing conditions, and checked against provincial agriculture and Canadian university extension guidance, and against frost-date and growing-season data, before publication.

Vegetable Growing Guides Canada

Last verified 2026-08-29

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