Radishes – Grow Guide

How to grow radishes

All you need to know about growing radishes, in our detailed Grow Guide.

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Do not Sow in January

Do not Sow in February

Do Sow in March

Do Sow in April

Do Sow in May

Do Sow in June

Do Sow in July

Do Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December


Do not Harvest in January

Do not Harvest in February

Do not Harvest in March

Do not Harvest in April

Do Harvest in May

Do Harvest in June

Do Harvest in July

Do Harvest in August

Do Harvest in September

Do Harvest in October

Do Harvest in November

Do Harvest in December

  • Average Yield

    One root per plant

  • Spacing

    2.5cm apart

Radishes are easy to grow and make a tasty addition to salads, or a crisp and crunchy snack on their own.


There are many different types of radish to choose from, both summer and winter varieties. Radishes are great for children to grow from seed as they’re quick to germinate and are ready to harvest within a couple of weeks.

How to grow radishes

Sow radish seed direct in a well-prepared seedbed. Thin out seedlings that are growing closely together and water regular in dry conditions. Harvest after three to six weeks.

More on growing radishes:

Sowing radish seeds in a containers
Sowing radish seeds in a containers

Sowing radish seeds

Sow radishes every few weeks through the summer for a regular supply. Seeds can be sown directly into warm soil, either in beds or in containers and grow bags.

Here, Monty Don demonstrates how to sow radishes as a catch crop while waiting for another crop to grow into the space:

Thinning out radish seedlings
Thinning out radish seedlings

Looking after radish plants

Radishes prefer warm soil and need plenty of moisture for healthy growth, so water regularly. Thin out seedlings if sown close together to encourage individual plants to form roots.

Harvesting radishes
Harvesting radishes

Harvesting radishes

When thinning radishes, you can add the young leaves to salads as a microgreen. If you’re growing them for the crunchy roots, summer radishes should be ready to harvest after about three to six weeks – they’ll quickly get woody if left too long in the ground. Winter cultivars can be harvested from November onwards.

Discover more microgreens to grow.

Winter radishes
Winter radishes

Storing radishes

Eat summer radishes as young roots fresh from picking, but winter radishes such as mooli, can be left in the ground to harvest as needed, or stored in a cool dry place.

See some of the tasty recipes using radishes, from our friends at Olive Magazine.

Pot of radishes
Pot of radishes

Radishes: problem solving

Young radish leaves are a magnet for slugs and snails, so put protection in place after sowing seeds.

The leaves can also be affected by flea beetle – look for holes in leaves. The best method of prevention is to grow under horticultural fleece. Also add fertiliser as strong plants will be more able to fend off pests.


Organic tip

Grow radishes in between rows of other, slower growing crops – your row of radishes will help to suppress unwanted weeds.

Radish 'French Breakfast'
Radish ‘French Breakfast’

Radish varieties to try

  • ‘French Breakfast’ – RHS AGM, a popular summer radish with cylindrical red and white roots
  • ‘Diana’ – spherical, purple and white variety
  • ‘Ping Pong’ RHS AGM – round, white roots, slightly milder in flavour
  • ‘April Cross’ – long white roots up to 30cm long, known as Japanese Mooli, this winter variety is good in salads or stir fries
  • ‘Marabelle’ AGM – a small-leaved, bright red, round variety