Prized for their cheery appearance in the home landscape, many perennial species of daisy flowers are available. Including flowers in the aster or composite family, daisies typically display visible centres and a multitude of petals, or rays. Perennials make a lower maintenance addition to the home landscape than annuals because they bloom for several seasons, while annuals live out their entire life within a single year.
Shasta daisies (Leucanthemum) are tall hybrid perennials that bloom from summer through fall. Blossoms reach a diameter of 3 inches, blooming atop green stems measuring approximately 3 feet. This daisy is well-suited for mass plantings or individual planting. In addition, the Perennial Plant Association named the shasta daisy's 'Becky' cultivar the 2003 Perennial of the Year. Thriving in areas that provide full sunlight, shasta daisies tolerate partial shade. Grow these perennials in moist, well-drained soil and deadhead older blossoms to promote new growth.
Painted daisies (Pyrethrum roseum or Chrysanthemum coccineum), commonly referred to as pyrethrum, are shrubby perennial flowers that display delicate vivid green foliage and single bloom daisies that grow on long stems reaching 12 to 24 inches in height. Painted daisies, as their name suggests, bloom in a variety of colours including red, white or pink with yellow centres. Flowering in early summer, painted daisies thrive in full sunlight to partial shade and prefer well-drained soil. In addition, this perennial daisy is a plant from which the organic insecticide "pyrethrum" is derived.
English daisies (Bellis perennis) are small spring-blooming perennial daisies that display flowers in hues of red, pink or white. Reaching a mature height of 3 to 6 inches, English daisies can get out of control and become weeds when they leave the home gardening space. Grow these perennial plants in areas that offer full sunlight to light shade in cool, moist soil with good fertility. Consider different cultivars when choosing colours and form. Crimson Ball, for example, produces crimson hued globe-shaped flowers while Early White yields double white blooms.
Oxeye daisies (Leucanthemum vulgare) are short-lived perennials both favoured as flowers and considered weeds. With 2-inch white blossoms on thin, 2-foot stems, these daisies often appear on roadsides because they thrive in poor soil conditions. Blooming in May, these flowers crop up in large groups. If you choose to grow these flowers in your garden, select a spot that receives full sunlight. Because of its invasive tendencies, do not plant oxeye daisies near crops.
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- Oregon State University Extension: Dozens of Daisies Can Dazzle Into Autumn
- Purdue University Extension: Shasta Daisy Named Perennial of the Year: B. Rosie Lerner; February 2003
- NC State University Cooperative Extension Service: Pyrethrum Roseum = Chrysanthemum coccineum; Alice B. Russell and Erv Evans
- NC State University Cooperative Extension Service: Perennials - Bellis Perennis
- Michigan State University Extension: Bellis Perennis -- English Daisy
- University of Arkansas Cooperative Extension Service: Oxeye Daisy - Plant of the Week; Gerald Klingaman; May 2005