Lysimachia – Lysimachia clethroides Share this:Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Designed with love! Our Grower's Choice Subscription freshly picked and delivered to your door every month. Shop Now Common Name: Lysimachia, Gooseneck Loosestrife Botanical Name: Lysimachia clethroides, ly-si-MAH-kee-a kleth-ROY-deez Decorative Life: 7-25 days. Flower Color: White Availability: Summer, Year Round Harvest Instructions: Harvest when approximately 40% of the flowers are open. Storage Specifics: 36-41F for brief time. Tidbits: From the Greek meaning “ending strife”. Named after King Lysimachos of Thrace (360-281 B. C.) who is said to have calmed a bull with a piece of loosestrife. Lysimachia punctata has larger yellow flowers in looser clusters. In the garden, perennial members of this genus tend to be invasive. Harvest when flowers are 40% open. Recent Research Findings: Reid (2000) demonstrated that flower food effectiveness varied greatly depending on brand name compared to plain tap water and a bleach/tap water solution.