Description
A fast-growing and highly versatile marginal, Nasturtium officinale (Watercress) is well known as both an attractive pond plant and a nutritious edible herb. It produces small white flowers in late spring and summer, set against lush green foliage that spreads across the water’s surface.
Ideal for shallow water or gently flowing streams, Watercress quickly establishes and forms a dense mat, helping to oxygenate the water and absorb excess nutrients. This makes it a useful addition for improving overall pond balance and clarity.
Its fresh, peppery leaves can be harvested for salads, making it a practical as well as decorative choice. Best grown in clean, unpolluted water for consumption.
Key Features:
Fresh green foliage with small white flowers
Edible leaves with a peppery flavour
Height: approx. 10–30cm (spreading)
Position: Full sun to partial shade
Planting depth: 0–10cm (prefers shallow, moving water)
Fast growing and easy to establish
Helps improve water quality and oxygenation
A great all-rounder for ponds and streams, combining visual appeal, practical benefits, and edible value.