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Mentha aquatica

Water mint

Common names: Stream mint

Water mint

This description was machine-translated.

Description

Water mint (Mentha aquatica) is a native perennial suitable for pond edges and shallow water up to about 10 cm deep. It spreads by creeping runners, forming dense, aromatic clumps, and produces lilac flower heads on the tips of shoots from July to September. Bees, bumblebees, and hoverflies are attracted in large numbers, making it one of the most productive bee pastures for pond gardens. The leaves emit a strong minty fragrance and can be used fresh or dried for tea. In mild winters it remains semi‑evergreen; in colder winters it retreats below the water surface and regrows in spring.

Care instructions

Plant water mint in baskets or confined zones along the pond edge to prevent it from spreading rapidly across the entire shallow water area. It prefers full sun to partial shade and constant moisture, even standing water; a loam or pond substrate is sufficient. Trim spent shoots in late summer to keep the clump compact and encourage fresh growth. In winter the plant can be left in place; the roots in water provide adequate frost protection. Divide larger clumps every few years in spring to keep the plant vigorous and to prevent it from displacing neighboring pond-edge plants.

Soil & site

Soil pH

4.0pH 5.5–7.58.0

Soil type

moist, humus-rich, nutrient-rich, loamy

LightPartial shade
HardinessHardy
Water needHigh

Feeding

Medium feeder

Companion planting

Good neighbors

nightshade family (Solanaceae)

particularly well established

You will find that basil next to tomato and pepper improves taste and keeps whiteflies and aphids away.

For example PotatoTomatoSweet pepperCocktail tomatoEggplantCape gooseberry and 9 more species in the catalogue

Source: classic companion planting (DACH-Gartenpraxis)

cabbage family (Brassicaceae)

You will notice that the intense scent of basil, thyme, and others confuses the cabbage whitefly and keeps it away from the cabbage family.

For example White cabbageKohlrabiRadishKalebroccolicauliflower and 34 more species in the catalogue

Source: bio-gardening intercropping practice

Companion planting is partly traditional gardening lore. Where the reason is known, it is given.

Some of these explanations were machine-translated.

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