Sagittaria sagittifolia
Arrowhead
Common names: Common Arrowhead
Photo: Christian Fischer · CC BY-SA 3.0 · Source
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Description
Arrowhead (Sagittaria sagittifolia) is a native shallow-water plant easily identified by its distinctive arrow-shaped leaves. From June to August (week 24 to 33) it produces delicate white flower spikes with a dark center above the water surface. Underwater it forms small tubers that have traditionally been used as wild vegetables and add structure to garden ponds. As a margin plant in ponds or wetland beds it provides a natural, native appearance and offers shelter for dragonflies and other aquatic animals.
Care instructions
Plant Arrowhead in nutrient-rich, loamy soil in shallow water zones up to about 30 cm deep, preferably in a container to prevent uncontrolled spread. A sunny to partially shaded location encourages reliable flowering. Trim spent stems in late summer and remove dying leaves in autumn to keep the water clear. The plant is winter-hardy, retreating into its rhizome during cold months; it reliably regrows in spring, around mid-April (week 16). If stands become dense, divide them every few years in spring to prevent overgrowth in the pond.
Soil & site
Soil pH
Soil type
moist, nutrient-rich, loamy, clayey
Feeding
Medium feeder
Notes from real gardens
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