Bred by Lynn Collicutt of the Morden Research Station in Morden, Manitoba. Lavender-pink flowers in July and August atop deep green, shiny and clean foliage. More compact than others in the species. Very low maintenance. Cherished by butterflies and hummingbirds, but disliked by deer. Also makes an excellent cut flower!
Royal fern is truly one of the most distinctive and spectacular bold-textured deciduous native ferns with its light green, leathery leaves and graceful architectural stature. With adequate moisture, royal fern can reach 6' tall and create a lush, tropical feel along a stream or beside a pond.
Grown mainly for the foliage, 'Purple Knockout' has compact basal rosettes of shiny burgundy leaves that turn to deep purple in summer, then to red in the fall. Spikes of pale lilac-blue flowers appear in spring and summer, but sometimes the flowers have only calyces and no petals. We have not been able to determine the cause of this, but a cut back of the stems promotes new blooms that often have petals the second time around. Petals or no, the flowers are attractive to bees and butterflies. Very easy to grow in just about any soil, it will self sow to spread and become a dense groundcover that makes a great native substitute for Ajuga.