Blue flowering evergreen ground covers control weeds, prevent erosion and provide an attractive visual display in your landscape. Blue flowering ground covers are low-growing, up to 2 feet tall, and can be planted under trees or in rocky places. Evergreen ground covers stay green through the winter months and produce colorful, blue flowers in spring and summer.
Evergreen ground covers have many uses in the garden. They make colorful accents for flower beds, cover steep slopes where other plants won't grow and provide coverage under trees. Similar to other ground covers, blue-flowering ground cover varieties grow well in dry, drought-prone areas, can spread quickly to cover large areas and tolerate deeply shaded areas. Blue flowers produced by evergreen ground covers provide visual interest when planted between stones in garden walkways and add color to rock gardens and xeriscapes.
Evergreen ground covers with blue flowers are available in many varieties suitable for shaded and sunny areas. Creeping phlox can grow in full sun or partial shade and forms a dense mat with spring-blooming blue flowers. Grace Ward lithidora thrives in full sun, produces blue funnel-shaped flowers from spring to fall and can spread up to 6 feet. Another evergreen ground cover that prefers full sun is the Diamond Heights ceanothus. It grows up to 1 foot tall and produces fragrant, pale blue flowers in the spring.
Blue-flowering evergreen ground covers that prefer shaded areas can be planted under shrubs, in patio containers or on the north side of a building. The Vinca minor cultivar, Illumination, has yellow leaves with a green border and blue flowers that bloom from spring to fall. Honeydew, another Vinca minor cultivar, produces tube-shaped lavender flowers in the spring and summer. Ajuga reptans, commonly known as carpet bugleweed, is a fast-spreader that produces tiny, dark blue flowers and attracts butterflies.
To plant blue-flowering evergreen ground covers, weeds should be removed and organic material added to the soil to promote growth. Ground covers planted in spring have time to root and spread before colder winter months. Evergreen blue-flowering ground covers can spread quickly and should be spaced according to growth habits. Blue woolly speedwell quickly spreads from 1 to 3 feet and should be spaced accordingly. Turkish speedwell, with light blue flower clusters, can spread up to 2 feet, but at a slower rate.
Fast-growing ground covers like carpet bugleweed and moss phlox can become invasive if not controlled. Cutting back these ground covers can prevent new growth and prevent them from spreading into areas where they're unwanted. Blue-flowering evergreen ground covers are not meant to be walked on regularly. Implementing a walkway through a large ground-covered area can protect plants from being stepped on. Moss phlox, blue woolly speedwell and creeping phlox are all prone to powdery mildew and rust.