Juncus filiformis
Thread rush
Juncus can be annuals, deciduous or evergreen perennials. They are clump-forming, often having cylindrical leaves, and bearing clusters of small brown flowers in Summer. Juncus filiformis - 'Thread Rush' - is an evergreen perennial that forms a clump of corkscrew-like, spirally curling, leafless stems, sometimes bearing small clusters of brown flowers in Summer, that are followed by a seed capsule containing 3+ seeds. Can be grown as a 'marginal' (at the edge of a pool or pond)
Contributed by @heather66
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Full sun to partial shade
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Frequent watering
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Full Frost Hardy: 5F (-15°C)
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Moist and rich
Common name
Thread rush
Latin name
Juncus filiformis
type
Aquatic marginal
family
Juncaceae
ph
6.0 - 8.5 Acid - Neutral
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
Juncus filiformis
Juncus can be annuals, deciduous or evergreen perennials. They are clump-forming, often having cylindrical leaves, and bearing clusters of small brown flowers in Summer. Juncus filiformis - 'Thread Rush' - is an evergreen perennial that forms a clump of corkscrew-like, spirally curling, leafless stems, sometimes bearing small clusters of brown flowers in Summer, that are followed by a seed capsule containing 3+ seeds. Can be grown as a 'marginal' (at the edge of a pool or pond)
Flowering
From Early Summer TO Late Summer
Small clusters of brown flowers sometimes appear in Summer
Planting
From Early Spring TO Mid Spring
Rushes like moist, rich, acid soil, and can be grown as marginal plants, at the edge of a pond or pool. Plant in full or partial sun,
Propagating by division
From Mid Spring TO Early Summer
Propagate by dividing the plant. Dig up the whole plant, and divide it into sections to be replanted straight away