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Radish Seeds - Black Spanish Round

Botanical - Raphanus sativus


Seed Count:
350 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Price £1.75
Discounts applied automatically at checkout.
  • Buy 2 - 3 and pay only £1.61 each
  • Buy 4 or above and pay only £1.46 each

Our Price Promise

If you find the exact same product cheaper elsewhere within 28 days of purchase we will refund you 2 times the difference! Click here for more details and terms & conditions.

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350 Seeds.

Other Names - Winter Radish…

An old heritage and reliable variety with black skin and bright white flesh. The large 10 cm wide radishes can be stored over the winter months. Black Spanish Round is an easy and useful crop to grow. Add raw to salads, roast, boil or add to hearty winter meals.

  • Excellent storage qualities.
  • Old, traditional, easy to grow variety.
  • Produces crispy, spicy, bright white flesh.

Suitable For - Vegetable plot, raised beds, container garden

Sowing Months - Late July - August

Harvest - September - December

Gardening is about finding the right balance! Try growing Companion Plants close by to help deter pests.

  • Mint helps to deter the flea beetle however it is advisable to grow this perennial herb in containers as mint can be very invasive. The containers can be moved around the garden to help protect vulnerable crops as and when needed.
  • Calendula (Pot marigold) attracts predatory insects such as lacewings, ladybirds and hoverflies who love to feast on aphids.
  • Nasturtiums - aphids are attracted to this plant. Grow these flowers close by as a sacrificial plant. If there are aphids in the area the nasturtiums will help to draw the pests away from the crop

Soil Preperation

Add well rotted manure or compost to the area a few months before sowing. Not only will the added organic matter add valuable nutrients to the soil, it will also help to create a more water retentive soil. Remove any weeds and add some general purpose organic fertilizer 1 - 2 weeks before sowing. The soil should be a fine tilth.

General InformationSowing & Planting Information
Habit Biennial, grown as an annual Module Grown & Transplants
Type   Distance between plants N/A
Position Full sun Distance between rows N/A
Average height 30 cm Direct Sowing
Average spread 20 cm Sowing distance between plants 2 cm
Hardiness Hardy Distance between rows 25 cm
Overwintering Stored Sowing depth 1 cm
Soil Ph 6.5 - 7.5 (prefers alkaline soil) Germination temperature 13 to 20℃
    Days to germination 5 - 10 days

Sowing Guide

Early Sowing/Module Sowing

Radish grow rapidly, for this reason it is best to sow radish directly into the ground.

Direct Sowing

Sow 1 seed every 2 cm apart at a depth and row distance suggested above. Cover the seeds with soil and water well. If brassica pests are a problem cover with fine insect mesh. Over several weeks thin out the young radishes until eventually each remaining radish is about 15 cm apart. Start the thinning process when the radish thinning's are big enough to eat.

Growing On

Weed often, taking care not to disturb the radish roots. Water well in dry weather to prevent the roots from developing a woody texture.


Thinning's can be eaten fresh when the roots are small, however for storage purposes the radish are best left to grow to a larger size, between 10 - 15 cm in diameter before harvesting.
It is advisable to harvest all of the crop by early December. Store in boxes of sand in a shed or garage over the winter months.
Summer varieties are normally eaten raw in salads, larger winter varieties can also be eaten raw, grated in salads, pickled, or cooked in stir fries etc. Winter varieties such as Black Spanish have a stronger flavour and a courser texture.


Slugs love to nibble on radishes. Remove any slug havens such as stones, weeds etc. and keep the surrounding soil as dry as possible when watering. Slugs and snails dislike dry soils.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

Returns & Refunds

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The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

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If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.