Watercress

Watercresses in Bedhampton

Nasturtium officinale

Watercress is a hardy perennial leafy crop that grows best in shallow running water or very wet soil. In the UK it’s usually grown outdoors in a pond basket, streamside bed, or container kept constantly wet, and it gives the best leaves in cool weather.

Height20cm
SunlightPartial Shade
WaterHigh Water

Growing Guide

Step-by-step instructions for growing Watercress

Planting Calendar

Seed DirectLater
J
F
M
A
M
J
J
A
S
O
N
D
TransplantLater
J
F
M
A
M
J
J
A
S
O
N
D
FertiliseNow
J
F
M
A
M
J
J
A
S
O
N
D
HarvestNow
J
F
M
A
M
J
J
A
S
O
N
D
ObservationLater
J
F
M
A
M
J
J
A
S
O
N
D
  1. Sow Seeds

    1 Feb – 4 May
    every 3 weeks

    Sow seeds around 1st February - 4th May on the surface of very moist compost, then press them in lightly rather than burying them. Keep the compost constantly damp while they germinate, and sow a fresh batch every 21 days for a steady supply.

  2. Thin Seedlings

    2 Apr – 9 Apr

    When seedlings are large enough to handle, from 2nd April, thin them so the strongest plants have room to spread. Keep the soil wet at all times, because even brief drying checks growth.

  3. Transplant

    20 Mar – 1 May

    Move seedlings to their final spot around 20th March - 1st May, spacing them well apart in mud-like soil or a shallow run of water. Water in thoroughly straight after planting and keep the roots submerged or constantly wet.

  4. Feed Plants

    10 Apr – 15 Oct
    every 2 weeks

    From 10th April, give a very light liquid feed every 14 days if growth slows, but avoid strong feeding that makes the leaves coarse. Keep the bed weed-free and topped up with water.

  5. Harvest Leaves

    7 May – 15 Oct

    Start cutting from 7th May when plants are well rooted and the shoots are leafy. Pick little and often through to 15th October, taking the outer stems first and leaving the centre to regrow.

Companion Plants

Tap a plant to see why it works (or doesn't) with Watercress.

Good companions

Plants to avoid

Why companion planting matters

Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.

Also in nearby towns

See how Watercress timing shifts in other towns with different frost dates.