How to Grow

How to Grow Sweet Cicely Canada | Planting & Establishment

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Sweet Cicely (Myrrhis odorata)

White sweet cicely flower umbels above fern-like foliage — “Myrrhis odorata Marchewnik anyżowy 2021-05-14 01” by Agnieszka Kwiecień, Nova is licensed under CC BY-SA 4.0. Source: Wikimedia Commons

2 sources cited · Verified

Sweet cicely (Myrrhis odorata) — perennial.

Unlike an annual crop, the work here is front-loaded into establishment: get the planting and the site right and the same plants crop for several seasons.

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

Growth Stages

Close-up of a lacy fern-like sweet cicely leaf — “Myrrhis odorata Marchewnik anyżowy 2022-05-03 04” by Agnieszka Kwiecień, Nova is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Myrrhis odorata Marchewnik anyżowy 2022-05-03 04” by Agnieszka Kwiecień, Nova is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Stage BBCH Notes
Sowing and cold period 0 Sow direct into a well-prepared seedbed in autumn so seed gets the cold it needs, or chill seed in a fridge for four weeks and sow into pots in spring, one seed per pot (Gardener's Path).
Seedling establishment 1 Thin seedlings to about 25cm as they grow, transplanting in spring if needed, or plant out pot-raised seedlings once all frost risk has passed; water regularly through the first season to root in (Gardener's Path).
Clump development 3 Plants build to 1-1.5m tall and 0.5-1m wide over two to five years in partial shade on moist but well-drained loam; keep evenly moist but not waterlogged (RHS, Gardener's Path).
Flowering, seed and harvest 6 White umbels open in early summer and are followed by large ridged spindle-shaped seeds; leaves are picked through the season, green seeds eaten fresh and ripe seeds used in cooking. Dead-head regularly, as sweet cicely self-seeds freely (RHS, Gardener's Path).

Quick Facts

White sweet cicely flower umbels above fern-like foliage — “Myrrhis odorata Marchewnik anyżowy 2021-05-14 01” by Agnieszka Kwiecień, Nova is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Myrrhis odorata Marchewnik anyżowy 2021-05-14 01” by Agnieszka Kwiecień, Nova is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Factor Value
Drainage Moist but well-drained
Lifecycle perennial
Edible parts leaves, seeds, roots

Harvest & Storage

Ridged spindle-shaped sweet cicely seeds — “Myrrhis odorata MHNT.BOT.2004.0” by Didier Descouens is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Myrrhis odorata MHNT.BOT.2004.0” by Didier Descouens is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

When to pick: RHS: leaves, seeds, and roots all edible raw or cooked; when grown as a culinary herb, "remove flower stalks as they develop to improve the quality of the leaves"; fresh green seed pods used to sweeten rhubarb.

Storage

Best used fresh

References

  1. country=INTL

  2. country=UK

2 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.

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 2026-09-02

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