How to Grow Rutabaga

Rutabaga

Brassica napus subsp. rapifera

vegetable

Rutabaga is a cool-season root vegetable with a bulbous underground storage root and large, blue-green leaves. It's a cross between cabbage and turnip, offering a slightly sweet, mild flavor. Rutabagas are hardy, long-storing crops ideal for fall and winter gardens.

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Laurentian Nadina American Purple Top Marian Helenor Joan

Growing Conditions

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Sun: Full sun, 6-8 hours daily

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Water: Consistent moisture; provide 1-1.5 inches weekly. Keep soil evenly moist but not waterlogged to prevent cracking and splitting.

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Spacing: 6-8 inches

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Days to maturity: 90-120

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Planting depth: 0.5 inches

Soil

Type: Well-draining loamy soil, rich in organic matter

pH: 6.0-6.8

Amendments:

Compost Aged manure Potassium-rich fertilizer Boron (if deficient)

Growing Zones

Find your zone →

Zones 2-7; grows best in cool climates with long growing seasons

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

Growth Stages

Seedling

10-14 days

Thin, delicate cotyledons emerge with small oval true leaves. Plants are 1-2 inches tall.

Thin seedlings to 6-8 inches apart once they have 2-3 true leaves. Remove debris to prevent damping-off.

Leaf Development

4-6 weeks

Rosette of blue-green, deeply lobed leaves develops. Root swelling begins underground.

Keep consistently watered and weed regularly. Mulch to retain moisture and suppress weeds. Monitor for cabbage moths and flea beetles.

Root Bulking

6-8 weeks

Underground root enlarges into a ball, typically 4-6 inches in diameter. Leaves continue growing.

Maintain steady moisture and fertility. Apply balanced fertilizer if soil is poor. Thin if crowded.

Maturation

2-3 weeks

Root reaches full size (4-6 inches), crown is swollen, skin thickens and turns tan or purple-top. Leaves are vigorous.

Reduce watering slightly to encourage drying. Prepare for harvest as roots become woody if left too long.

Harvest-Ready

Until frost or desired harvest

Root is firm, well-sized, with thin skin. Plant can remain in ground in cool climates for weeks.

Harvest before severe freezes in cold zones. In mild climates, can harvest selectively over time.

Companion Planting

Plan your garden →

Plant with:

Beets Carrots Spinach Lettuce Onions Garlic Peas Beans

Avoid planting near:

Strawberries Tomatoes Pole beans Other brassicas (cabbage, broccoli, kale)

Common Pests

Use row covers, bacillus thuringiensis (Bt), hand-pick caterpillars, or neem oil spray
Apply row covers, diatomaceous earth, neem oil, or reflective mulches; encourage native predators
Remove infested leaves, use insecticidal soap, apply neem oil, or use spinosad
Spray with water jet, use insecticidal soap, neem oil, or encourage beneficial insects
Avoid planting brassicas in infected soil, improve drainage, lime soil to pH 7+, use resistant varieties if available

Uses

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Roasting & Root Vegetable Dishes

Culinary

Rutabagas are excellent roasted with other root vegetables, mashed, or used in soups and stews. Their mild sweetness makes them a versatile side dish. [source]

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Mashing & Purees

Culinary

Boiled and mashed rutabagas create a creamy, smooth side dish similar to mashed potatoes, often mixed with butter and seasonings. [source]

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Long-Term Storage

Household

Rutabagas store exceptionally well for 3-4 months in cool conditions, making them ideal for winter food security and pantry staples. [source]

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Livestock & Animal Feed

Wildlife

Historically used as winter feed for cattle, sheep, and pigs; nutritious and economical forage crop. [source]

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Vitamin C & Fiber Source

Medicinal

Rich in vitamin C, fiber, and potassium; supports immune function and digestive health as part of a balanced diet. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest when roots are 4-6 inches in diameter and still tender; oversized roots become woody and bitter. Twist or pull from ground, or loosen soil first. In mild climates, roots can be left in ground and harvested over several weeks. After frost, flavor improves as starches convert to sugars. Store unwashed roots in cool (32-40°F), humid conditions for 3-4 months.

Fun Facts

🌱 Rutabagas were developed in medieval Europe as a cross between turnips and cabbage, making them one of the newer vegetable crops compared to ancient crops.
🌱 In Scotland and Northern England, rutabagas (called 'neeps') are traditionally mashed and served with haggis as part of the classic Burns Night supper.
🌱 A single rutabaga plant can weigh 2-4 pounds at maturity; they are among the heaviest root vegetables per plant, making them excellent for high yields in limited garden space.

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