Great lobelia or blue cardinal flower (Lobelia siphilitica) is a native perennial USDA hardiness zones 4-8). They bloom about a month later than cardinal flower (Lobelia cardinalis). They’re part of the late summer perennial bloom season that includes turtlehead (Chelone obliqua), asters (Symphtrictum), ‘Henry Eilers’ black eyed Susan (Rudbeckia subtomentosa). and dahlias (Dahlia spp.). Add […]
Archive for the ‘Container garden’ Category
Berggarten Salvia Favors Both Gardeners And Culinary Afficiendos
Common sage (Salvia officinalis), a member of the mint family (Lamiaceae), is the culinary sage familiar to most cooks (USDA hardiness zones 5 to 8). The species grow 1.5 – 3 feet high and wide. Multitudes of showy two-lipped, 1-inch long, violet-blue flowers arise on short, upright spikes in late spring. Flowers attracts numerous bees […]
The Next Generation of Weigelas
Weigela (Weigela florida) is old-fashioned shrub with rose colored blooms and arching branching habit in mid-spring. This shrub is native from Japan, Korea, and China (USDA hardiness zones 5-8). New hybrids of weigelas are arriving at garden centers this spring. Compared to previous cultivars that were 6-9 feet tall, new introductions grow only 2-5 feet […]
Princess Flower Excels Where Summers Are Hot
Princess Flower or Glory Bush (Tibouchina spp.) is a tropical shrub (from Brazil) that produces beautiful showy purple flowers. It blooms over a long time span (USDA hardiness zones 9-12). The most popular species in cultivation is T. urvilleana. A well-tended plant can be trained into a miniature tree in a large container for patios and decks. This […]
Growing Celosia In The Summer Garden
Celosias (Celosia argentea), aka cockscomb, feather, and plume amaranths, are summer flowering annuals in most of the U.S. (USDA hardiness zones 10-11). Mature plant height varies by cultivars, generally between 6 inches and 3 feet in height, taller types grown for the florist market. Celosia plants are classified into three groups: a crested type (C. […]
Landscape Ideas Using Crape Myrtles
If you live in zone 7 and points southward, you are likely growing crape myrtles (Lagerstroemia indica x fauriei). Additional hybrid cultivars (varieties) are hardy in zone 6. Crape myrtles are loved for their spectacular summer flowers, colorful fall foliage, and exquisite peeling bark over trunks and branches. Cultivars range in size from dwarf selections […]
When To Cut Back Foliage Of Spring Flowering Bulbs
Once your tulips, daffodils and other spring flowering bulbs have bloomed, don’t be in a hurry to cut off the stems and leaves. Plant foliage serves an valuable role in the health and growth of bulbous plants. The green leaves absorb sunlight and carbon dioxide as a part of the process of photosynthesis. The spent blossoms […]
Bugleweed (Ajuga) Groundcover
Bugleweed, aka carpetweed (Ajuga reptans), is low-growing semi-evergreen groundcover that offers almost year-round appeal (USDA hardiness zones 3-9). It develops a low prostrate habit and spreads by runners that root into the soil. Attractive vertical spikes of flowers arise in mid- to late- spring. Cultivars abound with multi-colored flowers. Foliage variants range from light green, […]