Lysimachia punctata or Dotted Loosestrife, Spotted Loosestrife, Garden Loosestrife, or Large Yellow Loosestrife as it is commonly called is a clump-forming herbaceous perennial. Lysimachia punctata is part of the Primulaceae family of plants. It is native to Southeast Europe to Caucasus or Asia Minor.
Lysimachia punctata is deciduous and it flowers in the summer. Dense groups of cup-shaped yellow flowers appear on axils of leaves and they each have five petals. Lysimachia punctata can grow up to 1.2m or 4ft. The leaves are bright green, hairy, ovate, and opposite.
They are easy growing but vigorous growers so you might have to reduce the clumps every few years. Plant them in the sun or partial shade but they do tolerate full shade as well. Lysimachia punctata like most types of soil with average moisture, but well-drained. Don’t let them dry out especially in the summer sun. Propagate through division. Watch out for slugs and snails otherwise, it is disease-free. This plant is self-seeding.