Probably one of the more common summer flowers is the Shasta daisy (Leucanthemum x superbum) yet surprisingly it took Luther Burbank, an American botanist and horticulturist, 17 years to develop this hybrid. Inspired by oxeye daises in his Massachusetts hometown, Luther wanted to create an improved daisy plant with larger flowers, a sturdier plant structure, and a longer blooming period. He wanted the petals to be as white as the snow on California’s Mt. Shasta. In the late 1800s, he crossed the oxeye daisy with an English field daisy and then a Portuguese field daisy and a Japanese field daisy. The new species, really a quadruple hybrid, was introduced in 1901. Since then, others have continued his work and to date there are many different cultivars of Shasta daisies.
Shasta daisies are herbaceous perennial plants, about 2 feet tall and hardy to zone 5. They are deer and rabbit resistant and drought-resistant when established. My plants get morning sun and afternoon shade but they can be grown in full sun. The flowers attract butterflies and bees and are excellent for cutting and arranging in vases, which is encouraged to promote continuous blooming. Depending on the cultivar, Shasta daisies can bloom from May to September. Cultivars vary in the number and arrangement of the outer white petals, from a simple, single row to a double row, to frilly or shaggy.
Mine is a Blooms of Bressingham introduction called ‘Freak’ and it has just the right amount of “frilliness” for me. I have had mine for 3 years now with no problems, no pests or diseases. It seems to have expanded which is good because it will soon be time to divide and place in other areas of the garden. If you want to read up on Shasta daisies, the Chicago Botanic Garden trialed 36 cultivars from 1999 to 2006 to identify outstanding cultivars for the northern gardens (my Freak was introduced after the study). Check out https://www.chicagobotanic.org/downloads/planteval_notes/no30_leucanthemum.pdf
The 15th of every month is Garden Bloggers Bloom Day where gardeners across the country post about plant that is blooming.