When to Plant Turnips in the UK

Your Guide to Sowing and Planting Turnips

June 08, 2025 | 8 min read
Freshly planted turnip seedlings in a UK garden

Turnips are a fantastic root vegetable to grow in any UK garden, providing a reliable crop that can be harvested in both summer and winter. Let’s dive into when and how to plant these versatile veggies for the best results.

Quick Answer

The best time to plant turnips in the UK is from March to August, depending on whether you want a summer or winter harvest.

Understanding UK Climate for Turnips

In the UK, our climate can be quite variable, but generally, turnips thrive in cool, moist conditions. Here in the Midlands, our soil tends to be quite accommodating, provided it's well-drained and loamy. Turnips can tolerate light frosts, which makes them a great choice for the British climate.

Best Times to Plant Turnips

Spring Planting for Summer Harvest

For a summer harvest, you’ll want to sow turnip seeds from March to May. This timing allows the plants to develop in the cooler spring months and mature before the heat of summer sets in. Ensure your soil is enriched with organic matter to support healthy growth.

Late Summer Planting for Winter Harvest

If you prefer a winter harvest, plant your turnips from July to August. This gives them ample time to establish before the cooler autumn weather arrives. The colder temperatures help sweeten the roots, enhancing their flavour.

Month Planting Time Harvest Time
March Spring Planting June - July
April Spring Planting July - August
July Summer Planting October - December
August Summer Planting November - January

Planting Tips for Successful Turnip Growth

To ensure your turnips thrive, consider these practical tips:

  • Choose a sunny spot with well-drained soil.
  • Space seeds about 10cm apart to give roots room to grow.
  • Water regularly to keep the soil moist, especially in dry spells.
  • Thin seedlings to prevent overcrowding.
  • Rotate crops every year to avoid soil-borne diseases.

Maintaining Your Turnip Crop

Once you've planted your turnips, maintenance is key. Regular weeding will prevent competition for nutrients. Additionally, keep an eye out for pests like flea beetles and aphids, which can damage young plants. Using organic pest control methods can help manage these issues effectively.

Frequently Asked Questions

Can I grow turnips in containers?

Yes, turnips can be grown in containers, provided they are deep enough to accommodate the root. Ensure good drainage and regular watering.

How do I know when my turnips are ready to harvest?

Turnips are ready to harvest when they are about the size of a golf ball for baby turnips, or a tennis ball for full-sized roots. Gently lift them from the soil with a fork to avoid damage.

Are there any companion plants for turnips?

Yes, turnips grow well with peas and beans, which can help improve soil nitrogen levels. Avoid planting near potatoes, as they can compete for similar nutrients.

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