Gardeners who desire more flowering from garden iris (Iris spp.) should be planting re-blooming types. Some cultivars may re-bloom up to three times in one growing season. The re-blooming trait is found both in bearded and beardless irises (I. germanica). Re-bloomers need to be well established for one year, sometimes two, to bloom multi-seasonly. Some […]
Archive for the ‘Perennials’ Category
Complete Care of Tall Bearded Iris
Most gardeners plant tall bearded iris from late August through October to insure good root development before winter sets in. Spring planting is another option as iris may be purchased in containers. Bare root rhizomes need to soak overnight in water before planting. Bearded irises prefer a sunny location and a slightly acidic well-drained soil. […]
Powis Castle Artemisia Is Exceptional
Most artemisias (aka “wormwood”) can not cope with the summer heat and humidity in the mid-South. Their silvery foliage tends to burn out (some say “melt out”) in mid to late summer. ‘Powis Castle’ artemisia is truly the exception. Powis Castle is likely a hybrid (Artemisia arborescens x A. absinthium Powis Castle is a bushy, woody-based perennial […]
Awaken Overwintering Tropical Plants
If you live in USDA zones 6 and 7, early March is usually the proper time to re-awaken containers of tender tropicals stored in your garage or moved in to join your house plants last fall. Likely, they’ve already begun to sprout. Specifically, angel trumpets (Brugmansia spp.), elephant ears (Colocasia spp. and Alocasia spp.), cannas […]
Sacred Lily (Rohdea) Brings Good Fortune
Depending on where you garden, Sacred Lily (Rohdea japonica) is either an evergreen or herbaceous perennial groundcover. It is slow growing and prospers in a moist shady woodland environment. Small clumps of long, strap-like leaves emerge from an underground crown to about 15” in height. Foliage is comprised of 18 inch long strap- like leaves […]
Winter Storage of Non-Hardy Tropicals*
There is frost on your pumpkin. By late October, northern U.S. gardeners (USDA zones 3 thru 6) must protect non-hardy tropicals such as cannas (Canna spp.), bananas (Musa spp. and Ensete spp.), elephant ears (Colocasia spp. and Alocasia spp.) and angel trumpets (Brugmansia spp.). Most gardeners living in zone 7-b and further south have little […]
Plant Autumn Asters Instead Of Mums
Aromatic asters (Aster oblongifolius) is one of our finest late blooming native asters for the autumn garden in the Southern Appalachian region (USDA zones 6 and 7). Through the spring and summer months, the dense gray-green shrubby foliage mounds grow 15-18 inches high and 24-30 inches wide. Hundreds of yellow-centered, daisy type flowers cover the […]
‘Little Lemon’ Goldenrod Acts Like Late Summer Bedding Plant
Across the Southern Appalachian region (USDA zones 6 and 7), the native goldenrods (Solidago spp.) are easy to spot, growing 6-8 feet tall in ditch banks along roadsides and in the poorest of soils. Over the past quarter century short, more compact cultivars have arrived local garden centers. ‘Little Lemon’ grows only 12-15 inches tall with a 18-24 inch spread. This diminutive […]
October Starts Out With Fall Sunflowers
I thank the person who gave me a native swamp sunflower (Helianthus angustifolia). This long-lived perennial appears to have its own internal clock for blooming around the first day of October. Its long narrow rough-textured leaves average 6 inches in length. The 2-3 inch wide flowers appear first on top of the tall 6 to 7 foot plants, and […]
Fall Is For Planting
Does your garden need a refresh? Summer’s heat and drought, devastating storms, and disease and pest problems combine to place a pall over your outdoor living space. Perhaps, you desire an entirely new look. Maybe you’re tired of the same old beds of roses, daylilies and other perennials. Maybe your garden saps too much of […]