Turnip Growing Guide🥕: Planting and Care Tips for Balcony and Raised Gardens

Introduction
Turnips are an underrated cool-season root crop that deliver crisp, sweet bulbs and tender greens. They thrive in spring and fall, making them a versatile addition to any garden. Whether you’re planting in a LifeSpace Garden or setting up your own beds with GardenWells sub-irrigation kits, steady bottom-up watering keeps turnips mild, juicy, and thriving.
When to Plant Turnips
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Spring: Direct seed as soon as the soil is workable, typically March through May. For early-planting strategies, see the March Gardening Guide.
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Fall: Sow again in late August to September for a sweet autumn harvest. For tips on cooler-season care, see the September Gardening Guide.
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Succession Planting: Sow every 2–3 weeks for a steady harvest window.
Square Foot Gardening Spacing
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Spacing: 9 plants per square foot (~4” apart)
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Depth: Sow seeds ½” deep
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Thinning: Thin to the strongest seedlings after germination
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Companions: Pair turnips with carrots, lettuce, and radishes for efficient use of space.
How to Plant Turnips
Direct Seeding
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Sow 2–3 seeds per hole and thin to one strong plant once established.
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Keep the soil surface evenly moist until germination (~5–7 days).
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Best planted in SIP systems to maintain steady moisture and avoid bitterness.
Transplanting (Optional)
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Turnips generally prefer direct seeding but small plugs can be transplanted successfully.
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If transplanting, water gently for the first 7–10 days to help roots establish in the wicking zone.
Watering Your Turnips
Turnips need consistent hydration to stay sweet and tender:
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Use your WaterStem to monitor levels: when the Hummingbird rises, your reservoir’s full; when it drops, refill.
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Before establishment: Lightly top-water daily until seedlings root into the moisture zone.
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After establishment: Refill reservoirs about every 1–2 weeks depending on weather.
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Mulch lightly around seedlings to retain moisture and regulate soil temperature.
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For March-specific watering strategies, see the March Gardening Guide.
Harvesting Turnips
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Baby Turnips: Ready in 30–40 days — harvest when bulbs are 2” wide for a tender, sweet flavor.
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Full-Sized Roots: For larger turnips, wait 50–60 days until bulbs reach 3–4”.
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Greens Too: Turnip greens are delicious — harvest the outer leaves while leaving the center intact for regrowth.
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For fall-harvest storage tips, visit our October Gardening Guide.
Common Issues & Fixes
Issue | Likely Cause | Solution |
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Woody or Bitter Roots | Irregular watering, heat stress | Keep steady SIP hydration, mulch to cool soil |
Flea Beetles | Spring pest pressure | Use row covers early, plant trap crops, encourage predators |
Poor Bulb Formation | Overcrowding | Thin seedlings to proper spacing (4” apart) |
Product Tips
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Small patios? Use CondoFarms balcony planters for compact turnip production.
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Going DIY? GardenWells kits simplify passive irrigation setups.
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Big builds? Check out custom self-watering raised beds for maximum yields.