How to Grow Watercress From Seedlings

One way to grow watercress is by starting with seeds, but you can also grow fresh plants by using watercress seedlings as a base.
Window-Grown Watercress

Window-Grown Watercress

Photo by: DK - Ready Set Grow! © 2010 Dorling Kindersley Limited

DK - Ready Set Grow! , 2010 Dorling Kindersley Limited

The secret of growing watercress is to keep it in full sun and the soil damp, but make sure it's never saturated, since overwatering can kill your crop. Never pick wild watercress — it may contain a waterborne parasite called a liver fluke.

Materials Needed:

  • recycled plastic bottle
  • store-bought watercress shoots
  • potting soil
  • recycled container

1. Place long shoots of watercress into a container of water.

You may use store-bought watercress for this method of growing the plant.

Cultivating Watercress

Cultivating Watercress

hand placing watercress into plastic bottle on windowsill

Photo by: DK - Ready Set Grow! © 2010 Dorling Kindersley Limited

DK - Ready Set Grow! , 2010 Dorling Kindersley Limited

2. Allow time for seedlings to develop roots.

Watercress will grow in full sun. As they roots flourish, new shoots will begin to grow.

Watercress Roots

Watercress Roots

watercress in plastic bottle

Photo by: DK - Ready Set Grow! © 2010 Dorling Kindersley Limited

DK - Ready Set Grow! , 2010 Dorling Kindersley Limited

3. Repot into moist potting soil.

Once watercress seedlings have developed an abundance of roots, they are ready to be transferred to a container.

Repot Watercress Seedlings

Repot Watercress Seedlings

Photo by: DK - Ready Set Grow! © 2010 Dorling Kindersley Limited

DK - Ready Set Grow! , 2010 Dorling Kindersley Limited

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