How to grow turnips is one of the easiest vegetable projects—turnips are fast (40–60 days), forgiving, pest-resistant, and deliver two harvests in one: tender roots and calcium-rich leafy greens. This guide covers planting times for spring and fall crops, direct seeding the standard way, spacing and thinning for optimal root size, harvesting at the sweet spot before woody maturity, storing for 3–5 months, managing the dual harvest of roots and greens, and growing purple-top, white, and Asian varieties for culinary diversity.
!Fresh purple-top and white turnips showing diversity of varieties A harvest of fresh turnips showing traditional purple-top and white varieties. Image: Wikimedia Commons (CC0), optimized 800px.
Turnip Growing Quick Facts
| Factor | Details |
|---|---|
| Difficulty | Very Easy |
| Days to harvest | 40–60 days from direct seeding |
| Sunlight | 4+ hours minimum; 6+ hours ideal |
| Soil pH | 6.0–7.5 |
| Spacing | 5–10 cm apart; rows 20–30 cm apart |
| Ideal temperature | 13–18°C (55–65°F); tolerates cool and moderate heat |
When to Plant Turnips
Turnips are a cool- to moderate-season crop even easier than beets. They grow reliably in spring and excel in fall. Direct seed 4–6 weeks before your area's average last spring frost for spring harvest, or in mid-to-late summer (8–10 weeks before first fall frost) for a prized fall crop.
| Region | Spring Planting | Fall Planting | Harvest Windows |
|---|---|---|---|
| Northern Hemisphere (temperate) | March–April | July–August | June–July (spring); September–November (fall) |
| Southern Hemisphere (temperate) | September–October | February–March | November–December (spring); May–June (fall) |
| Tropical/subtropical climates | Cool season (September–November) | Not ideal (too warm) | December–February |
| Hot arid climates | Early spring (February–March) | Late summer (July–August) | April–May (spring); October–November (fall) |
Pro tip: Fall turnips are prized by experienced gardeners for superior flavor and storage—cool finish weather concentrates sugars and flavor. Spring crops are fine for fresh eating; save fall plantings for storage.
How to Plant Turnips: Step by Step
- Prepare simple, loose soil. Unlike beets, turnips are remarkably forgiving of soil type. Loose, well-draining soil (pH 6.0–7.5) is ideal, but turnips grow in poor soil others reject. Till in compost if available; avoid fresh manure (causes hairy roots).
- Direct seed outdoors. Sow seed clusters 1 cm deep, spaced 5 cm apart along rows 20–30 cm apart. Turnip seeds germinate quickly (5–10 days). Keep soil consistently moist until sprouting, then reduce watering slightly to promote root growth.
- Thin seedlings promptly. Once true leaves appear (3–5 days after germination), thin to one plant every 5–10 cm. Early thinning is critical—crowded turnips become fibrous and woody. The thinned greens are tender and delicious.
- Water moderately. Turnips need 2–3 cm of water per week. They're more drought-tolerant than beets but prefer consistent moisture. Dry spells can trigger tough, woody growth or early bolting. Water at soil level to prevent leaf diseases.
- Mulch to regulate moisture and temperature. A 2.5–5 cm layer of straw helps retain moisture, regulate soil temperature (reducing bolting risk), and suppress weeds. In cool regions, mulch warms soil slightly; in hot regions, it provides cooling shade.
- Feed lightly, if at all. Turnips are light feeders. In poor soil, apply balanced fertilizer (10-10-10) once at mid-growth. Excess nitrogen encourages hairy, fibrous roots. Compost or aged manure worked into soil at planting is often sufficient.
- Harvest greens sustainably. Starting 25–35 days after planting, harvest outer leaves for cooking or salads, leaving the inner rosette to grow. Turnip greens are tender when young and maintain good texture through the season. Stop green harvesting 2–3 weeks before root harvest to allow roots to fully develop.
Turnip Care
- Early thinning is essential: Don't leave turnips crowded. Thin early and thoroughly; waste seedlings are normal. Crowded plants create multiple small, woody roots instead of one premium root.
- Consistent moisture prevents woodiness: Inconsistent watering triggers tough, bitter, or woody roots. Mulch buffers moisture swings. Morning watering is ideal.
- Turnip greens are as valuable as roots: Harvest outer leaves starting at the 6–8 leaf stage. Turnip greens are mild and tender compared to their cousin kale, excellent in salads or lightly cooked. Young greens are best raw; older greens are better cooked.
- Pest and disease are rare: Turnips have few serious pests. Flea beetles create small shot-holes in leaves (cosmetic, mostly). Root maggots are a concern only in specific regions (row covers help). Anthracnose appears in very warm, wet conditions (improve airflow; avoid overhead watering).
- Preventing bolting: Heat stress or transplanting shock can trigger premature flowering. Direct seeding and consistent moisture minimize bolting. In short-season areas, plant spring turnips early so they mature in cooling weather rather than heat.
When to Harvest Turnips
Harvest when roots are 5–8 cm diameter (2–3 inches) for peak tenderness and flavor. Smaller roots are tender but lower yield; larger roots (10+ cm) become increasingly woody and bitter, though some varieties hold quality well. Gently loosen soil and pull the entire root free.
For storage: Cure freshly harvested turnips in a cool, well-ventilated spot (10–15°C / 50–60°F) for 3–5 days to harden the skin and cork up small wounds. Remove any soil (don't scrub; bruising reduces storage life). Store in cool (0–4°C), high humidity (90–95%) in plastic bags with damp sand, or in a root cellar in layers of sand. Properly stored turnips last 3–5 months.
Health Benefits of Turnips
Turnips are a low-calorie nutritional gem at just 36 calories per 100 grams, rich in vitamin C (immune health), fiber, and potassium for heart health. The flesh contains glucosinolates—sulfur compounds in the cruciferous family (like broccoli and cabbage) studied for anti-cancer and anti-inflammatory properties.
Turnip greens are nutritional powerhouses: one cup of cooked greens delivers over 300% of daily vitamin K (bone health and blood clotting), plus calcium (often overlooked in greens, crucial for bone density), folate, and lutein for eye health. The deep colors indicate high antioxidant levels. Together, turnips and their greens provide exceptional nutrition for minimal calories.
Common Turnip Problems
| Problem | Cause | Fix |
|---|---|---|
| Tough, woody, bitter roots | Heat stress; dry soil; harvesting too late | Maintain consistent moisture; mulch; harvest at 5–8 cm diameter; plant for spring or fall harvest in your region |
| Hairy, fibrous roots | Fresh manure in soil; poor drainage | Avoid fresh manure (use aged); improve drainage; loosen compacted soil; remove rocks causing root deformation |
| Premature bolting (flowering) | Heat stress; transplant shock; overcrowding | Direct seed; thin adequately; mulch for cooling; plant for seasonally appropriate timing (spring or fall) |
| Multiple small roots instead of one | Crowding; inconsistent thinning | Thin aggressively and early once true leaves appear; don't hesitate to waste seedlings for optimal spacing |
| Yellow leaves (early season) | Nitrogen deficiency; watering issues | Apply light balanced fertilizer; check drainage; ensure consistent moisture (not waterlogged) |
| Small holes in leaves (flea beetles) | Flea beetle feeding | Row covers prevent; neem oil or spinosad if needed (usually cosmetic, doesn't affect roots) |
| Small black spots on leaves | Anthracnose (fungal) | Improve airflow; water at soil level only; remove affected leaves; rotate crops; usually minor |
| Soft roots in storage | Bruising during harvest/storage; too warm storage | Handle gently; cure in cool spot; store at 0–4°C, high humidity; remove any soft roots immediately |
Turnip Varieties to Try
- Purple Top White Globe: Classic purple-shouldered, white-fleshed, 60–70 days, excellent storage, widely available heirloom since the 1800s.
- Hakurei (Japanese): Small (3–5 cm), tender, sweet, mild flavor, 40–50 days, eaten whole with greens, excellent for baby turnips.
- Alltop (Golden/Orange): Golden-orange flesh, mild sweet flavor, 50–60 days, bolt-resistant, excellent for fall planting.
- Tokyo Cross (Hybrid): Small (5–7 cm), white, very tender, 40–50 days, bolt-resistant, high-quality greens, modern favorite.
- Scarlet Queen: Deep red exterior, pure white interior, 50–60 days, striking appearance, excellent flavor, good storage.
- Navone (Italian): Large (7–10 cm), white flesh, mild flavor, 70–80 days, heirloom, excellent for storage and roasting.
!Turnip greens freshly picked showing tender young leaves Fresh turnip greens ready for cooking, tender and nutrient-dense. Image: Wikimedia Commons (CC BY), optimized 800px.
FAQ
Are turnip greens as good as the roots? Many gardeners argue turnip greens are superior! They're tender (especially when young), mild, and nutrient-dense. Cook them lightly like spinach, or add raw young greens to salads. Mature greens are heartier and benefit from longer cooking. Some varieties (like Bull's Blood—mentioned with beets—are grown as much for greens).
Can I grow turnips in containers? Absolutely. Use pots or containers at least 20–25 cm deep and 30 cm wide. One turnip per pot, or 3–4 turnips in a 45 cm container. Use good potting soil; they're shallow-rooted but need drainage. Water when top inch is dry. Container turnips produce full-sized roots with consistent care.
Why do my turnips bolt (flower) prematurely? Heat stress is the primary trigger—turnips bolt in sustained temperatures above 24°C (75°F). Plant spring turnips early so they mature before heat; plant fall turnips to mature in cooling weather. Mulch helps moderate soil temperature. Transplanting also triggers bolting; direct seeding is more reliable.
How do I know when turnips are ready to harvest? Roots reach peak tenderness at 5–8 cm diameter. Gently scrape away soil from the crown—if you see the characteristic round top bulging above soil, it's likely mature. Overly large turnips (10+ cm) become woody; don't wait for supermarket size.
Can I save turnip seeds? Turnips are biennial; they flower in their second year. Allow one or two healthy roots to overwinter (in-ground in mild climates, or store in sand and replant in spring in cold zones). They'll bolt and flower in spring. Turnips cross-pollinate, so isolate varieties by 400+ meters or stagger flowering.
What's the difference between turnips and rutabagas? Rutabagas (swedes) are larger, take longer (90+ days), have yellow or orange flesh, and are hardier. Turnips are smaller, faster (40–60 days), have white or golden flesh, and are milder. Both store well and share similar care; turnips are more suitable for spring planting due to speed.
Related Growing Guides
Learn about other fast-growing root vegetables and cool-season crops that complement turnips:
- How to Grow Beets — Another sweet root vegetable
- How to Grow Radishes — Super-fast greens and roots
- How to Grow Carrots — Longer-season root crop
- Crop Planting Calendar — Find exact planting dates for your region
Ready to grow fast, tender turnips? Check our interactive crop calendar to find the perfect planting window for your region, or explore guides for other quick root crops and leafy greens.
Prepared by: Agricultural Content Team | Date: August 2026 Focus keyword: How to grow turnips Word count: ~1,350
Frequently Asked Questions
Are turnip greens as good as the roots? +
Many gardeners argue turnip greens are superior! They're tender (especially when young), mild, and nutrient-dense. Cook them lightly like spinach, or add raw young greens to salads. Mature greens are heartier and benefit from longer cooking. Some varieties (like Bull's Blood—mentioned with beets—are grown as much for greens).
Can I grow turnips in containers? +
Absolutely. Use pots or containers at least 20–25 cm deep and 30 cm wide. One turnip per pot, or 3–4 turnips in a 45 cm container. Use good potting soil; they're shallow-rooted but need drainage. Water when top inch is dry. Container turnips produce full-sized roots with consistent care.
Why do my turnips bolt (flower) prematurely? +
Heat stress is the primary trigger—turnips bolt in sustained temperatures above 24°C (75°F). Plant spring turnips early so they mature before heat; plant fall turnips to mature in cooling weather. Mulch helps moderate soil temperature. Transplanting also triggers bolting; direct seeding is more reliable.
How do I know when turnips are ready to harvest? +
Roots reach peak tenderness at 5–8 cm diameter. Gently scrape away soil from the crown—if you see the characteristic round top bulging above soil, it's likely mature. Overly large turnips (10+ cm) become woody; don't wait for supermarket size.
Can I save turnip seeds? +
Turnips are biennial; they flower in their second year. Allow one or two healthy roots to overwinter (in-ground in mild climates, or store in sand and replant in spring in cold zones). They'll bolt and flower in spring. Turnips cross-pollinate, so isolate varieties by 400+ meters or stagger flowering.
What's the difference between turnips and rutabagas? +
Rutabagas (swedes) are larger, take longer (90+ days), have yellow or orange flesh, and are hardier. Turnips are smaller, faster (40–60 days), have white or golden flesh, and are milder. Both store well and share similar care; turnips are more suitable for spring planting due to speed. ---