Archive for the ‘Failure to Bloom’ Category

Tidy Up These Perennials After Blooming Is Finished

Deadheading, the practice of removing the old spent flowers from perennials, is a way to improve a garden’s appearance and reduce overcrowding. Secondarily, many (not all) will rebloom after deadheading. Not all perennials respond to deadheading by reblooming. Most daylilies (Hemerocallis x.), coralbells (Heuchera spp.), and hostas (Hosta spp.) are prime examples of perennials that do not […]

Growing Trilliums

                Trilliums (Trillium spp.) are the beloved native wildflower around the world. Many species are native to the U.S. Five popular U.S. species are great white trillium (T. grandiflorum), yellow trillium (T. luteum), prairie trillium (T. recurvatum), drooping trillium (T. flexipes), and sweet Betsy trillium (T. cuneatum). For 8 months and more, trilliums are […]

List Of Dioecious Trees And Shrubs

              Some tree species are dioecious, that is produce single sex flowers (either male and female). Male flowers produce pollen and no fruits. Female flowers bear seeds or fruits.  You may purchase male clones to avoid picking up messy seed pods or capsules in the fall. If you are allergic to certain tree pollens, avoid […]

American Yellowwood Deserves To Be Planted More

    American yellowwood (Cladrastis kentukea) is a beautiful native tree which  is rarely planted in U.S. landscapes (USDA hardiness zones 4-8). Yellowwood is a tree for all seasons. It is both a lovely shade and flowering specimen. Long white wisteria-like flowers appear in mid- to late-May. It eventually matures into a lovely 35 to […]

Cosmos For Sunny Gardens

Cosmos, indigenous to Mexico and South America, are one of the easiest-to-grow flowering annuals. They start blooming in early summer and are at their best in late summer and early autumn. Two most popular species are Cosmos sulphureus and C. bipinnatus. Flower heads are composed of disc and ray flowers. Cosmos is a member of the aster […]

Why Mophead Hydrangeas Do Not Bloom

      The introduction of Endless Summer® hydrangeas in the 1990’s got gardeners excited about growing mophead hydrangeas  (Hydrangea macrophylla) again. Mophead hydrangeas bloom both on old wood in the spring and again on new wood in mid-summer. Flowers have either a blue/pink color depending on the pH of the soil. Endless Summer hydrangeas bloomed […]

YoYo Winter Temperatures– Expect Flower Losses On BigleafHydrangeas

              In the Southeastern U.S. region, wildly fluctuating temperatures this winter will likely destroy or delay spring and summer blooming on bigleaf (mophead) hydrangeas (Hydrangea macrophylla) (USDA hardiness zones 6 – 9). Other hydrangea species, such as smooth hydrangea (H. arborescens), panicle hydrangea (H. paniculata), and oakleaf hydrangeas, should not be affected. Bigleaf hydrangeas are […]

Tips On Crape Myrtles In Fall And Winter

                  Hardy cultivars of crape myrtles are best left alone in the fall. Light pruning to remove a broken branch or the seed capsules is ok, but major pruning should wait until early spring.  “Crape murder” is a common practice in the Southeast U.S. and is not recommended any time or place. It involves lopping […]

Shrubs You Should Not Prune In Fall Season

Why would anyone prune spring flowering shrubs in the autumn season? After a long cold winter, why miss out on the delightful fragrance of lilac and viburnum flowers the following spring? Predicting how cold, warm, or dry the coming winter season is rarely possible. Pruning cuts are wounds and weather extremes may cause injury to […]

Designing With Crape Myrtle

Undeniably, crape myrtles (Lagerstroemia indica x L. faurei ) thrive in the southern U.S. (USDA hardiness zones 6-9). You see them planted on practically every street. Their showy summer flowers are spectacular. Many cultivars exhibit colorful autumn foliage, and their smooth patterned trunks and architecture grace the winter landscape. “The right crape myrtle for the […]