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UK Delivery 95p. Free On Orders Over £12.50

Watercress Seeds

Botanical - Nasturtium officinale


Seed Count:
1500 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Price £1.70
Discounts applied automatically at checkout.
  • Buy 2 - 3 and pay only £1.56 each
  • Buy 4 or above and pay only £1.42 each

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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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1500 Seeds.

Other Names - European Watercress…

Watercress does not require running water to thrive and will happily grow in a container placed in a large saucer of water. It is a vigorous and very productive leaf producing a heavy crop of tender peppery leaves over a long season. The flavour of home grown watercress is far superior to shop bought versions.

  • Can be grown without running water.
  • Fast growing, vigorous and very productive.
  • Produces a superior peppery flavoured leaf compared to shop bought versions.

Suitable For - Vegetable plot, raised beds, container garden, limited space

Sowing Months - April - early October

Harvest - June - November

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

  • Slugs and snails love watercress, try growing plants nearby that attract the ground beetle, such as amaranth and clover. This predatory beetle eats slugs, snails, slug and snail eggs, caterpillars and weed seed.

Soil Preperation

A shady part of the garden with moisture retentive soil is a must when growing watercress. Add a good amount of well rotted manure and compost to the soil and water well. The organic matter will help the soil to retain its moisture. Remove any weeds.

General InformationSowing & Planting Information
Habit Perennial Module Grown & Transplants
Type N/A Distance between plants 20 cm
Position Preferably in the shade away from full sun Distance between rows 20 cm
Average height 15 cm Direct Sowing
Average spread 40 cm + Sowing distance between plants 10 cm
Hardiness Hardy Distance between rows 20 cm
Overwintering Undercover Sowing depth Surface
Soil Ph 6.5 - 7.0 Germination temperature 8 to 15℃
    Days to germination 10 - 14 days

Sowing Guide

Early Sowing/Module Sowing

Sow 2 - 3 seeds per 4 cm module. As soon as germination starts move to an area with good daylight, a windowsill or greenhouse is ideal. When the seedlings are big enough to handle thin to 1 strong seedling per module. Keep the compost damp at all times by sitting the modules in a tray with approx. 1 cm of water. 4 - 6 weeks later (depending on speed of growth) plant out into their final growing position. Harden off over 7 - 10 days before planting out. Firm the soil around each plant and water very well.

Direct Sowing

Sow 2 - 3 seeds 10 cm apart at the depth and row distance suggested above. Cover the seeds with soil and water well. When the seedlings are big enough to handle thin to one strong seedling per station.

Growing On

The soil must be kept moist at all times. Water copiously in dry weather. Weed often to keep competing plants under control. If preferred watercress can also be grown in containers. Fill a good sized pot with damp compost and sit the pot in a larger container or a deep saucer. After sowing or planting fill the outer container with water.
Position the pot in a shaded area. As the compost dries out more water will be wicked into the compost from the outer reservoir keeping the condition ideal for the watercress to thrive. Replace the water regularly to avoid it stagnating. Bring the container indoors into a greenhouse or conservatory over the winter months to help protect the plant from severe frosts.


Cut young shoots as required, individually or by cutting a handful of stems at a time with scissors. Regular picking will encourage more shoots to grow. Harvest all of the watercress leaves before any severe frosts arrive as it will not tolerate low temperatures. Watercress will keep in the fridge in a polythene bag for 3 - 5 days however it is at its best when eaten fresh.


If growing watercress in a container immersed in a water reservoir, the water will need to be renewed regularly to avoid it becoming stagnant.

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

We like to be transparent with our customers, here are your rights as a consumer -

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.

We want you to be 100% delighted with your purchase.

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.