Exclamation! London Plane Tree (Platanus x acerifolia Exclamation!™) is probably one the most improved cultivars to date (USDA hardiness zones 4-8). Exclamation! was introduced by Dr. George Ware at the Morton Arboretum and released through the Chicagoland Grows® program. Exclamation! develops a strong central leader, a uniform upright pyramidal shape (when young), a vigorous growth […]
Archive for the ‘Disease resistant’ Category
Exclamation™ London Plane Tree Is A Game-Changer
Posted by Hugh on August 13th, 2014
Posted in acidic soil, Aggressive grower, Disease resistant, Drought tolerant, Large Shade trees, Pruning, Soil drainage, Southern Appalachian Region, Street tree, Summer heat tolerant, Sycamore (Platanus), Trees & Shrubs, watering tips, Winter bark, winter hardiness 
Comments Off on Exclamation™ London Plane Tree Is A Game-ChangerFour Old Fashioned Hostas Continue To Delight
Posted by Hugh on August 4th, 2014
During my annual summer travel to public gardens around the U.S., several clumps of old-timey hostas that were popular in the 1960’s and ’70’s caught my eye. These hosta beauties still own their garden place. Here are listed only four, but there are so many more. ‘Gold Standard’is an old-time favorite. In August multiple pink-lavender […]
Posted in acidic soil, acidify soil, Disease resistant, Fertilizing plants, Hosta, Perennials, Planting tips, Propagation (dividing), Pruning, Rabbit/deer Protection, Shade Gardening, Slugs, Soil drainage, Southern Appalachian Region, watering tips, winter hardiness Comments Off on Four Old Fashioned Hostas Continue To DelightCrape Myrtle Diseases And Pests
Posted by Hugh on July 23rd, 2014
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 […]
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 PestsVersatile Long-blooming Catmints
Posted by Hugh on July 20th, 2014
Catmint (Nepeta spp.) is a favorite of cats who like to roll around in it, sometimes to the detriment of the plant(s) (USDA hardiness zones 3-8). There are several species of catmint. Most popular are the gray-green leafed N. x faassenii and hairy gray heart-shaped leafed N. racemosa. Depending on the cultivar selected, this versatile […]
Posted in acidic soil, Bee Favorite, Butterflies, Deer resistant, Disease resistant, Disease resistant, Drought tolerant, Fragrant, Ground cover, Nepeta (catmint), Perennials, Planting tips, Summer flowering, Summer heat tolerant, winter hardiness, Winter Protection Comments Off on Versatile Long-blooming CatmintsDisease Resistant Crape Myrtle Cultivars
Posted by Hugh on July 17th, 2014
‘Apalachee’ crape myrtle trunk Hybrid crape myrtles (Lagerstroemia indica x L. faurei) are popular landscape trees in the southeast and along the coastal areas of the U. S. Over the past decade plant pathologists in Louisiana (Louisiana State University), Alabama (Auburn University), South Carolina (Clemson University), and Georgia (University of Georgia) have tested the disease […]
Posted in acidic soil, Crape myrtle (Lagerstroemia), Disease resistant, Southern Appalachian Region, Summer flowering, Trees & Shrubs, Winter bark Comments Off on Disease Resistant Crape Myrtle CultivarsDesigning 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 HibiscusMimosa Tree- Love It or Weed It
Posted by Hugh on July 8th, 2014
Mimosa (Albizia julibrissin) is essentially a 4-5 month ornamental tree indigenous from Iran to China (USDA hardiness zones 6-9). From late spring through summer, mimosa struts an attractive fine textured foliage and beautiful flowering. This small tree rarely leafs out until mid-May (in zone 6) and offers little in autumnal leaf color. Two seedling forms, […]
Posted in acidic soil, Attracting birds, Butterflies, compact tree, Deer resistant, Disease resistant, Drought tolerant, Fertilizing plants, Fragrant, Hummingbird, Invasive plant, Mimosa tree (Albizia), Planting tips, Pruning, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, winter hardiness Comments Off on Mimosa Tree- Love It or Weed ItBlazing 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 Attention
