Alphabetical Plant Listing

Lysimachia clethroides (Gooseneck Loosestrife)

Gooseneck Loosestrife, Gooseneck


Lysimachia clethroides (Gooseneck Loosestrife) is a vigorous, rhizomatous, clump-forming perennial boasting a profusion of gracefully arching flower spikes, 12-18 in. long (30-45 cm), packed with many tiny, star-shaped white flowers. Resembling a goose's neck, they bloom for weeks in mid to late summer. They are borne above the fine foliage of pointed, slightly pubescent, 3-6 in. long leaves (7-15 cm), which turns orange-red in the fall. Native to Japan and China, this plant spreads aggressively by underground stems to form large colonies. Easy to grow, it is excellent at providing fast-spreading cover when required, creating great visual impact. However, attention should be paid to controlling its spread. Best when massed in a wild garden where it can be allowed to roam freely and naturalize in broad drifts. Prized by florists for fresh cut flower arrangements.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows 2-3 ft. tall (60-90 cm) and 2-4 ft. wide (60-120 cm).
  • Performs best in full sun or part shade, in humus-rich, moist soils. Will spread aggressively by underground rhizomes to form large colonies. However, it will spread more slowly if grown in drier soils with light shade.
  • A perfect plant for cottage gardens, wild gardens, bog gardens or next to ponds and streams. Excellent as long-lasting cut flowers.
  • Gooseneck Loosestrife is generally not subject to serious pest or disease issues.
  • Cut back after flowering.
  • Propagate by seed in pots outdoors spring or propagate by division in spring or autumn.
  • Native to Japan and China.
  • There are up to 180 species of Lysimachia. The genus includes hardy to frost-tender perennials, either herbaceous or evergreen. Their habit can be upright or prostrate, with some forming excellent ground covers. Their flowers are variably shaped, are usually yellow or white, but sometimes pink or purple. Many species are invasive, but this tendency can be harnessed to produce large stands, creating greater visual impact.

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Requirements

Hardiness 4 – 9
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A2, A3
Plant Type Perennials
Plant Family Lysimachia - Loosestrife
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid,Late)
Fall
Height 2' – 3' (60cm – 90cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 48" (120cm)
Water Needs Average
Maintenance Low, Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Rabbit, Wet Soil
Garden Uses Bog Gardens, Ground Covers, Ponds and Streams
Garden Styles Informal and Cottage, Prairie and Meadow

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By Gingo Scott, Khairil Azhar Junos, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 9
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A2, A3
Plant Type Perennials
Plant Family Lysimachia - Loosestrife
Exposure Full Sun, Partial Sun
Season of Interest Summer (Mid,Late)
Fall
Height 2' – 3' (60cm – 90cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 48" (120cm)
Water Needs Average
Maintenance Low, Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Rabbit, Wet Soil
Garden Uses Bog Gardens, Ground Covers, Ponds and Streams
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Lysimachia - Loosestrife

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