Gooseneck Loosestrife earned its common name from its elegant arches of white flowers thought to resemble a gooseneck. When planted en masse, the numerous plants appear as a gaggle of geese, with each "gooseneck" pointing in the same direction.
Gooseneck Loosestrife is very easy to grow. It is hardy in zones 3-8, tolerates any soil type (including soil with poor drainage and heavy clay), and will thrive in a full sun or partial shade environment. The white blooms generally appear in mid-Summer and last through late-Summer, but my plants began blooming in late Spring. The plants will reach up to 3' in height, and the green foliage turns a lovely shade of bronze in the Winter. The plants do eventually die back in Winter but re-emerge in early Spring.
This plant is most effective in mass plantings, and since Gooseneck Loosestrife multiplies very rapidly, it is difficult to deter a mass planting from occurring whether planned or not. Since this plant reproduces primarily by running roots, it can be planted in a large pot that is plunged into the ground to help control its invasive tendencies. Moist soil is the catalyst for rapid spreading, so a drier soil should inhibit spreading a bit.
Since Gooseneck Loosestrife multiples so rapidly, it is the perfect perennial to transplant from a friend's garden in early Fall. This bed was created from twelve transplants I took from my MIL's garden last September. Each plant has produced at least three more plants in that time and will be ready to divide next Fall. It is fun to grow plants that can be shared with others!
You can tell by this photo of the original transplants that not only does this plant multiply quickly, but it also grows beautifully. When I dug these from my MIL's yard, I didn't bother with getting much dirt around the roots, but pretty much just yanked them from the ground bareroot. I transplanted them into this heavy clay area that has very poor drainage, but they persisted through the Winter and emerged happily in Spring.
We all have those areas of the yard that we want to fill in quickly and don't necessarily care to fuss with throughout the year. Gooseneck Loosestrife is an excellent choice for a low maintenance solution.