Swede (Ruby)

How to grow Swede (Ruby)

Brassica napus var. napobrassica

🥕 Vegetable 🌱 Grown each year

Purple-skinned, sweet, golden-fleshed roots for mash and stews through winter. Very hardy.

At a glance: Sow late April to mid June, harvest from early October.

When to sow, plant and harvest

JanFebMarAprMayJunJulAugSepOctNovDec
Sow outdoors
Harvest

Timed for a typical UK garden (last frost mid-April). The app uses your own town's frost dates.

Growing Swede (Ruby): what it needs

Light
Full sun · 6+ hours a day
Watering
Water regularly in dry weather
Soil
Fertile, well-drained soil
Spacing
25 cm
In pots
Best in the ground
Feeding
A general feed before sowing or planting
Harvest
About 70 days from sowing
Hardiness
USDA zones 3–9
Difficulty
Easy

Step by step

  1. Late April – mid June · 2 weeks after the last spring frost

    Sow Seeds Outdoors

    Sow thinly in drills where they are to grow.

  2. 7–14 days after “Sow Seeds Outdoors” · Early May – mid May

    Check Germination

    Seedlings should appear in 7–14 days. If sown outdoors, thin to 25 cm apart when big enough to handle.

  3. 21–35 days after “Check Germination” · Late May – early June

    Weed and Water

    Hoe off weeds between rows and water in dry spells — even moisture gives better crops.

  4. Early October – mid February · 2 weeks before the first autumn frost

    Start Harvesting

    Lift from autumn as needed; they stand in the ground through winter.

  5. 90–120 days after “Start Harvesting” · Early January – early February

    Finish and Clear

    Clear the remains to the compost heap once cropping ends.

More vegetables to grow

Photo: Garitzko / Wikimedia Commons (Public domain)