Not all crape myrtle cultivars are alike. Some are more susceptible to diseases and insect pests more than others. Overall, the U.S. National Arboretum (USNA) hybrid crapemyrtles are more disease and insect resistant, but not to all problems. Some cultivars are susceptible to aphids, usually in the spring. Their sugary excretions over leaves and stems […]
Archive for the ‘Garden Problems’ Category
Crape Myrtle Diseases And Pests
Posted by Hugh on July 23rd, 2014
Posted in Cercopora leaf spot, compact shrub, compact tree, Crape myrtle (Lagerstroemia), Disease prone, Disease resistant, Insect (Pest) Problems, Japanese beetles, Pesticide recommendations, Powdery mildew, Southern Appalachian Region, Summer flowering, Trees & Shrubs 
Comments Off on Crape Myrtle Diseases And PestsDesigning With Crape Myrtle
Posted by Hugh on July 14th, 2014
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 […]
Posted in acidic soil, compact shrub, compact tree, container shrub, Crape myrtle (Lagerstroemia), Disease resistant, Drought tolerant, Failure to Bloom, Planting tips, Privacy Screen, Soil drainage, Summer flowering, Summer heat tolerant, Winter bark, winter hardiness, winter injury Comments Off on Designing With Crape MyrtleBecome Immersed In Swamp Hibiscus
Posted by Hugh on July 11th, 2014
Swamp mallow, aka swamp hibiscus (Hibiscus coccineus) is native to marshes and swamps in South Carolina, Georgia, Alabama, and Florida (USDA hardiness Zones 6 to 9). Vibrant red flowers cover the tall 4–8-foot plant(s) from June through September. Space plants 3 feet wide apart. Deeply cut maple-like foliage presents a lush tropical look and the […]
Posted in acidic soil, Bee Favorite, Butterflies, Deer resistant, Disease resistant, Drought tolerant, Fertilizing plants, Hardy hibiscus, Hibiscus coccineus, Hummingbird, Insect (Pest) Problems, Japanese beetles, mulching, Native Plant, Perennials, Planting tips, Root suckering, Soil drainage, Southern Appalachian Region, Summer flowering, Summer heat tolerant, winter hardiness Comments Off on Become Immersed In Swamp HibiscusCaveats Before Planting Planetrees (Sycamores)
Posted by Hugh on July 4th, 2014
American sycamore, aka planetree, (Platanus occidentalis) is a native tree planted over a large area of the United States (USDA hardiness zones 4-9). Its enormous size, often 70-90 feet in height, limits it to planting mostly on large landscapes such as parks, golf courses, and industrial parks. Northern U.S. cities have planted it extensively along […]
Posted in acidic soil, Aggressive grower, Aphids, Disease prone, Drought tolerant, Heat Tolerance, Insect (Pest) Problems, Large Shade trees, Native Plant, Pests, Planting tips, Southern Appalachian Region, Street tree, Summer heat tolerant, Sycamore (Platanus), Trees & Shrubs, Winter bark, winter hardiness Comments Off on Caveats Before Planting Planetrees (Sycamores)Blazing Star– Electric Summer Flowering Perennial
Posted by Hugh on June 27th, 2014
Blazing star (Liatris spp.) is a popular summer flowering perennial. Also called gayfeather, it belongs in the aster family. This tall, upright, clump-forming perennial is found in moist meadows and at the edge of a marsh. (USDA hardiness zones 3-9). Liatris makes an excellent addition to a rain garden. Its distinctively reddish-purple flower spikes win […]
Posted in acidic soil, Bee Favorite, Blazing star (Liatris), Butterflies, deadheading, Disease resistant, Drought tolerant, Fertilizing plants, Perennials, Planting tips, Propagation (dividing), Propagation (Seed), Rabbit/deer Protection, Soil drainage, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on Blazing Star– Electric Summer Flowering PerennialLovely Tall Stewartia Deserves Your Attention
Posted by Hugh on June 24th, 2014
Not enough gardeners know about stewartias (Stewartia spp.). Six species are found under cultivation, 2 native to the U.S. and 4 of Asian origin. One of the rarest seen in U.S. gardens is tall stewartia (S. monadelpha) (USDA hardiness zones 5-8). Tall stewartia is a more site forgiving than Japanese stewartia (S. pseudocamellia), the most […]
Posted in acidic soil, Bee Favorite, Disease resistant, Japanese beetles, mulching, Planting tips, Soil drainage, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Tall stewartia, Trees & Shrubs, watering tips, Winter bark, winter hardiness Comments Off on Lovely Tall Stewartia Deserves Your AttentionGladiolas Are Wonderful Cutflowers
Posted by Hugh on June 21st, 2014
Across most regions of the U.S., planting gladiola corms (they’re not really “bulbs”) begins a week before the probable frost-free date has passed in the spring. Stagger individual plantings every 2-3 weeks through mid- July. Many people opt to grow them as cutflowers for their homes. Purchase large or premium sized corms that measure 1 […]
Posted in acidic soil, Autumn flowering, compost, Disease resistant, Fertilizing plants, Gladiolus, Insect (Pest) Problems, mulching, Planting tips, Propagation (dividing), Southern Appalachian Region, Summer flowering, Thrips, watering tips, Wildlife attractant, winter hardiness Comments Off on Gladiolas Are Wonderful Cutflowers‘Stella D’Oro’- First And Last Daylily To Bloom
Posted by Hugh on June 13th, 2014
For over a quarter of a century, wherever daylilies (Hemerocallus spp.) grow, you will find the very popular gold-flowered ‘Stella d’Oro’ daylily (USDA hardiness zones 2-9). It’s one of a few daylilies that blooms 3 out of 4 seasons. Its small size makes it an ideal choice as a ground cover. This short clump growing […]
Posted in acidic soil, Autumn flowering, Bee Favorite, Butterflies, Daylilies, Disease resistant, Disease resistant, Fertilizing plants, Fragrant, Ground cover, mulching, Perennials, plant nutrition, Planting tips, Propagation (dividing), Pruning, Soil drainage, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on ‘Stella D’Oro’- First And Last Daylily To BloomHow To Grow Milkweeds
Posted by Hugh on June 2nd, 2014
Milkweeds, aka butterfly weed (Asclepias spp.), are the favorite food of the Monarch butterfly. Farmers and most gardeners rate them as a noxious weeds. They’re commonly spotted growing along roadsides or in unplowed ground (USDA hardiness zones 3-9). Milkweeds average 3 feet in height, but may vary from 2-6 feet depending on species. Most species […]
Posted in acidic soil, Butterflies, Butterfly weed (Asclepias), Disease resistant, Drought tolerant, Hummingbird, Native Plant, Planting tips, Soil drainage, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Wildflowers Comments Off on How To Grow MilkweedsPreventing Powdery Mildew Disease On Summer Plants
Posted by Hugh on May 18th, 2014
Powdery mildews are serious fungal leaf diseases infecting many garden plants. Each one is host specific. The powdery mildew that attacks summer phlox does not infect zinnias or pumpkin vines. Powdery mildew disease on crape myrtles does not attack lilacs or roses. In recent years new powdery mildew diseases have popped up on dogwoods and […]
Posted in Crabapple, Crape myrtle (Lagerstroemia), Disease prone, Disease resistant, Dogwood (Cornus), Garden Problems, Irrigation, Lilac (Syringa), Monarda (Beebalm), Peony, Perennials, Phlox, Powdery Mildew, Southern Appalachian Region, Summer flowering, Trees & Shrubs, watering tips, Zinnia Comments Off on Preventing Powdery Mildew Disease On Summer Plants
