Watercress Seeds - Nasturtium Officinale Herb Plant Seed

Watercress Seeds

Herb Specifications

Season: Perennial

USDA Zones: 5 - 11

Height: 12 - 24 inches

Bloom Season: Late spring to mid summer

Bloom Color: White

Environment: Partial shade

Soil Type: Varying soil types as long as they are saturated, pH 6.5 - 7.5

Planting Directions

Temperature: 50 - 60F

Average Germ Time: 7 - 14 days

Light Required: No

Depth: 1/4 inch

Sowing Rate: 15 - 20 seeds per plant

Moisture: Keep seeds moist until germination

Plant Spacing: 9 - 12 inches

Watercress (Nasturtium Officinale) - Watercress seeds are grown for both a culinary and medicinal herb. It is a succulent, leafy plant that thrives in marshes, bogs and water gardens. The lobed leaves can be eaten raw, cooked or dried. They have a pungent flavor and are crisp. It needs to be harvested before the buds appear as the leaves turn bitter after flowering. It is a fast-growing plant that prefers partial shade.

Bright white blooms

Watercress produces white flowers in mid-summer which are very attractive to bees and the plants are highly ornamental in home ponds.

herb plant watercress

Herb seed | watercress

How to grow

How To Grow Watercress From Seed: Start seeds for an indoor herb garden. Place the containers in a tray of water and keep the water constantly supplied. Fluorescent lamps or growing lights are needed. The seeds can be started indoors 6 weeks before the last expected frost and then transplanted outdoors. The ideal setting is along a pond or stream bank.

  • Sowing Rate: 15 - 20 seeds per plant
  • Average Germ Time: 7 - 14 days
  • Keep moist until germination
  • Attracts bees and birds
  • Depth: 1/4 inch
watercress seeds

Plant Specifications

As a medicinal herb, it has long been used to treat sore throats and sinus congestion. It is very rich in vitamins and minerals and in alternative medicine, it is used for a wide variety of ailments. Some other common names that watercress is called are: water rocket, water radish, and hedge mustard. It is in the mustard family.

  • Height: 12 - 24 inches
  • USDA Zones: 5 - 11
  • Season: Perennial