Modern day delphiniums (Delphinium spp.), also called larkspurs, are the result of 2 centuries of complex breeding efforts in Europe and U.S. Delphiniums are short-lived perennials, at their best for 2-3 years. They’re most attuned to the cool temperate climes of the northern U.S. Delphiniums belong in the Buttercup (Ranunculaceae) family (USDA hardiness zones […]
Archive for the ‘Summer flowering’ Category
Six Summer Annuals Your Grandma Did Not Know About
Angelonia (“summer snapdragon”)… are outstanding performers in the summer flower garden, yet so many gardeners have never heard of them. Angelonias demonstrate outstanding heat and humidity tolerances. Serenita™ (12-14 inches high), Serena™ (15-18 inches high), and Archangel™ (12-14 inches tall high) series, are available in purple, lavender, pink, […]
Hold In Confinement
Some plants are incredibly aggressive. Herbicides like Roundup™ won’t phase them. They often escape and take over other areas of your garden or neighborhood. Four notorious examples are ditch lilies (Hemerocallus fulva), swamp milkweed (Asclepias incarnata), Mexican petunia (Ruellia brittoniana), and pink evening primrose (Oenothera speciosa). You can grow these four weedy offenders in confinement. All will survive […]
‘Sun King’ Golden Aralia Glows In Summer Garden
Plants with golden foliage brighten up a dark area in the garden. Sun King golden aralia (Aralia cordata ‘Sun King’) is no exception, hardy in USDA hardiness zones 3-9. Bright golden compound leaves emerge in mid-spring and Sun King aralia retains its bright color through the summer months. This long-lived perennial […]
Reviving A Severely Damaged Crape Myrtle In The Spring
Crape myrtles (Lagerstroemia indica and hybrid cultivars) are rated as hardy perennials and semi-hardy shrubs or trees in USDA zone 6 and parts of zone 7. Since the year 2000, an average of 1 out of 3 winters has killed some crape myrtles to the ground. By […]
Update: Prevention / Treatment Options For Rose Rosette Disease
Rose rosette is a devastating disease of most species of garden roses, including hybrid and shrub roses. Rose rosette disease has spread from the Rocky Mountains to the East Coast over several decades and is poised to obliterate the rose industry. To date, there is no known effective treatment. Rose rosette is caused by an […]
New Coreopsis Cultivars All The Rage
Threadleaf coreopsis (Coreopsis verticillata), also called tickseed, is a popular summer flowering perennial. Coreopsis are native to the U.S. and produces hundreds of pale-yellow blooms. Depending on cultivar, plant grows 12 to 18 inches tall and 2 feet wide. Some gardeners even plant old-time favorites like ‘Zagreb’ and ‘Moonbeam’ as annuals (USDA hardiness zones […]
Summer Blooming ‘Little Lemon’ Goldenrod
Goldenrods are members of the aster family (Asteraceae); approximately 100 species of goldenrods are native to North America. Across most of the Eastern and Midwestern U.S., goldenrods are frequently spotted growing in moist soils in open farm fields, in ditches, and along edges of streams. The golden yellow blooms attract countless bees, butterflies and other […]
Utilize Sweet Flag For Garden Accent
Sweet flag cultivar (Acorus gramineus) is an iris-like perennial usually planted for its wavy drifts of golden yellow foliage. This dwarf ground cover, indigenous to China, Korea and Japan, grows 6-12 inches tall. Sweet flag is a member of the acorus family (Acoraceae) (USDA hardiness zones 6-9 and should be winter protected in zone 5). Green […]

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