Tickseed is the common name for the cheery and colorful Coreopsis. Long utilized as a border plant in perennial gardens, it’s often only know for its ferny green foliage and one main flush of bright yellow blooms in early summer. Now, thanks to Darrell Probst’s spectacular breeding work on the Big Bang series, the genus has been revolutionized, with a wider range of colors with almost continuous bloom throughout the season! Skagit Gardens in Mt. Vernon, WA has sent us samples over the years to display and trial here at UW Botanic Gardens and we have them peppered around the Center for Urban Horticulture.
This stunning selection is ‘Star Cluster’. It probably has the tidiest habit of all the Coreopsis we have. It has worked very well as a edging plant because it stays fairly low and it has been in flower since June with minimal deadheading. The color progression of the flowers is quite fascinating as it opens to a lovely cream with a crimson center and over time and as the weather cools for autumn, the center color softly blends and becomes more prominent on the entire flower.
Common Name: Tickseed
Location: Soest Garden Bed 5
Origin: Garden Origin.
Height and Spread: 15-18″ wide and 10-12″. tall
Bloom Time: June-Frost