Lysimachia clethroides
Lysimachia clethroides

Lysimachia clethroides

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SKU: S33630
1 for $12.95
23 Reviews
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Quick Facts
Common Name: Gooseneck Loosestrife
Hardiness Zone: 3-8S/9W Exposure: Sun to Part Shade
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Blooms In: Jul-Sep
Height: 36" Spacing: 18-24"
Read our Growing Guide Ships as: 1 PINT 28.86 CU IN.
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Product Details

Product Details

L. clethroidesis better known as Gooseneck Loosestrife because its slender arching spikes of white flowers have a graceful crook that makes them seem friendly and informal. Bloom is abundant from July into September; the plants in our propagation blocks produce 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.

This large genus includes a lot of weedy species, but this exceptionally fine native of China and Japan has been a favorite around here for years.




The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. Estimated dates for shipping are indicated in the Shipping Details box for each item. Please refer to the Shipping Details box to determine the earliest shipping time. Unless you specify otherwise, fertilizers, tools, and other non-plant items are shipped with your plants or bulbs. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at Please include your order number or customer number when contacting us.



Average Customer Rating: (23 Reviews) Write a Review

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Gooseneck Lysimachia "contained"

Gardening Grannie from Central Connecticut

I read up on this plant after admiring it in a gardening magazine. The one warning was that it can be invasive. Great news for those that want to use it as a groundcover for a large area. My small yard did not need that! I loved the novelty of the plant enough to inquire further. I was told by an avid gardener to cut the bottom off a large plastic pot like those used in the garden centers for shrubs and small trees. I was then instructed to dig a hole large enough to contain the pot, leaving about one inch above ground, fill with amended garden soil and the Gooseneck Lysimachia. Several years have passed and the method has worked wonderfully! An added bonus is that this plant stays nice all through the summer, even when not in bloom.

47 of 48 people found this review helpful. Do you? yes no

Wonderful Informal Garden Addition

Queen Caffeine from Simsbury, CT

I took over a 1.64 acre commercial property that had many different gardens over its 60+ years. Little bits remain from many of the planting beds and not necessarily all fitting together well. The last iteration installed Monarda, Coreopsis, & Lysimachia (& then some) in the same bed - also adjoining a huge pachysandra field - that divided a Zen garden from a part shade woodland garden. It had been neglected for at least 3 or 4 years. All of these otherwise invasive plants keep the other species honest. A lawn mower ensures the garden grass paths are clear. If you are the sort of gardener that simply must have every green thing under tight rein, not a leaf out of place, and will drive yourself into the ground to achieve it, you will hate this plant passionately. On the other hand, if weeds are possible good additions to your garden (elecampane is GORGEOUS!)and you don't mind enthusiastic plants, you will get along just fine. I have a 600sf garden at home that I have kept as organic as possible, lazily weeded at times because of lack of time, and every summer it rewards me with a glorious display of my annuals and perennials. Now I have 1+ acres to restore, and this little guy is filling in all the ugly old corners of retaining walls and ditches. Keep it honest by planting it it with equally enthusiastic plants. Don't expect precision growing drills, and relax with an iced tea to enjoy the butterflies dance over it on a lazy summer afternoon.

27 of 29 people found this review helpful. Do you? yes no

Lovely but vicious

Hobby Gardener from Rochester, IL

When I planted this plant and saw it grow and flower the first season, I was delighted of every charming flower. The second year, I was excited to see it fill in an spread. By the third year, it was unstoppable. Since than, it took three years (deep digging and then constant digging and pulling) to get rid of about 95% of it. If you like this plant but do not have unlimited space for it, you would be better of getting a photo and frame it where you can look at it than planting it, especially if you'd rather not use nasty chemicals for the sake of the environment but digging is not something you love to do, either.

20 of 21 people found this review helpful. Do you? yes no

Love Gooseneck Loosestrife

mouse from Howell, Michigan

I love this plant, it spreads like wildfire, and fills in large spaces. You can always count on it coming back year after year, but it's also easy to kill if it spreads too far....Just use Roundup and it will disappear.

16 of 19 people found this review helpful. Do you? yes no

Be VERY Careful

Becky from Baltimore

While the plant is beautiful, it's quite aggressive and Very invasive. It will take over your whole garden, grass, etc. It seems to do fine in a rock garden.

14 of 14 people found this review helpful. Do you? yes no

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Growing guide

Growing guide

Latin Name Pronunciation: lye-sim-ak'ee-uh     

A large and attractive group of perennials, some tall, with elegant, arching flower spikes and others of ground-cover stature. They prefer moist soils, where most will spread rapidly from underground stems. Despite this aggressive reputation, many garden species are more restrained, and their long-blooming, showy flowers are an indispensable part of summer borders and bouquets.

Light/Watering: Full sun or part shade. Water thoroughly after planting, and keep a close eye on the plant over the following week. After the first week, give a new plant a good soaking once a week during summer, unless rainfall is plentiful (more than 1" per week). Established plants can generally get by on less water, but most grow best if the soil remains evenly moist. Please note that more is not better. When in doubt, don't water.

Fertilizer/Soil and pH: Not fussy about soil. Although Loosestrife prefers moist, well drained soil, it tolerates poor drainage; it is less vigorous and therefore less invasive in dry soil. We recommend against fertilizing at planting time and during the first growing season in your garden. Plants need time to settle in before being pushed to grow. Most established plants grow best if fertilized with a light hand. We fertilize perennials just once -- in early spring -- with a light but even coverage of a balanced, granular fertilizer (such 10-10-10 or an organic fertilizer). If a concentrated, water-soluble fertilizer is used, please follow the manufacturers' recommendations carefully.

Continuing Care: Some taller species may require staking. Deadheading after flowers fade helps prevent unwanted seedlings. Divide in spring or fall. Pests are rarely a problem; occasionally rust or leaf spot might occur.

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