L. clethroidesis better known as Gooseneck Loosestrife because its slender arching spikes of white flowers have a graceful crook that looks somewhat like the shape of a goose neck. Bloom is abundant from July into September; plant multiple plants to naturalize a sea of white spikes every summer. Plants grow to 3′ and are vigorous to the point of invasiveness, which we prefer over plants that limp their way through the season. A superb ground cover in any soil, in full sun or partial shade; it also deserves a role in the border with plants that can help restrain its enthusiasm. Try it with Monarda or Heliopsis. Lysimachia makes a good cut flower and with Amsonia and Platycodon boasts some of the most striking fall color to be had in a perennial garden.
Native of China and Japan.
Botanical Name: Lysimachia clethroidesis
- Zones: 3-8
- Ship Season: Mid-April through late Fall
- Ships as: Mature bareroot plants
- Soil: Well drained.
- Sun: Full Sun or Part Shade
- Bloom Time: Summer to Fall
- Height: 36″
- Spacing: 18″
If you have properly prepared the soil prior to planting, this perennial needs no special care. Gooseneck Loosestrife is not susceptible to insects or disease and can withstand cold temperatures with a layer of mulch over the plant root zone. Cut back the spent racemes to make the plant look better and trim back all the stems to within 2 inches of the ground in late winter. New spring growth will arise from the crown and flowers appear in June until October. Divide the plant every three years for best growth. The center will start to die out if you do not dig up the plant and cut it into two or three pieces. Plant each piece for new floral displays. Gooseneck loosestrife flowers are attractive to butterflies so dot the pieces around your landscape and enjoy the show.