Downy mildew in impatiens (Plasmopara obducens) infects garden impatiens, double impatiens and balsam. However, New Guinea impatiens, SunPatiens™, and most annual summer flowering plants are not susceptible. Impatiens are the favorite flowering annual used in shady garden areas. Double impatiens and balsam are favorites in hanging pots and other types of containers. U.S. greenhouse growers […]
Archive for the ‘Disease resistant’ Category
Pest Alert – Gardeners Should Avoid Planting Garden Impatiens
Posted by Hugh on May 23rd, 2013
Posted in Disease prone, Disease resistant, Disease resistant, Downy mildew, Flowers, Garden Problems, Impatiens, New Guinea impatiens, Southern Appalachian Region, Summer flowering, Sunpatiens, Torenia (wishbone flw.) 
Comments Off on Pest Alert – Gardeners Should Avoid Planting Garden Impatiens‘Florida Sunshine’ Anise Tree
Posted by Hugh on May 18th, 2013
Florida Sunshine anise tree (Illicium parviflorum ‘Florida Sunshine’), aka Ocala yellow star, is a southeast U.S. native which grows well on moderately shaded sites. Its evergreen, chartreuse colored, spring-summer foliage turns golden yellow in the fall. As its common name hints, the evergreen foliage emits a licorice scent. The overall fall-winter show is nothing short […]
Posted in Anise tree (Illicium), compact shrub, Deer resistant, Disease resistant, Native Plant, Southern Appalachian Region, Trees & Shrubs Comments Off on ‘Florida Sunshine’ Anise TreeFloral Fragrance Of Native Fringetree Fills The Spring Air
Posted by Hugh on May 10th, 2013
Fringetree (Chionanthus virginicus) is treasured for its billowy masses of fragrant white flowers in the spring. It commonly grows as a large 15-20 foot tall shrub, but can be easily trained into a 20-25 foot multi-stemmed small tree. Most gardeners call this native “fringe tree” or fringetree. Regionally, it goes by a number of colloquial […]
Posted in acidic soil, Autumn Fruiting, Bee Favorite, Disease resistant, Disease resistant, Drought tolerant, Fringetree (Chionanthus), Native Plant, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Trees & Shrubs, winter hardiness Comments Off on Floral Fragrance Of Native Fringetree Fills The Spring AirSummer Flowering Heleniums Should Not Make You Sneeze
Posted by Hugh on April 18th, 2013
Helenium, named for Helen of Troy from Greek mythology, is U.S. prairie perennial. In times past powdered disk flowers and leaves of some heleniums were used as snuff, hence the common name. It’s difficult to sell ‘sneezeweed” and many garden catalogs now list it as “helenium”. A number of good hybrid selections have been introduced […]
Posted in Butterflies, deadheading, Deer resistant, Disease resistant, Helenium, Native Plant, Perennials, Pruning, Rabbit/deer Protection, Southern Appalachian Region, Summer flowering, watering tips Comments Off on Summer Flowering Heleniums Should Not Make You Sneeze‘Appalachian Spring’ Dogwood Highly Disease Resistant
Posted by Hugh on April 1st, 2013
This may be old news, but definitely worth repeating. Twenty five years ago a dreaded dogwood disease threatened to eliminate our beautiful spring flowering tree from our gardens. Appalachian Spring flowering dogwood (Cornus florida ‘Appalachian Spring’) was found at the Camp David Presidential Retreat atop Catoctin Mountain in Maryland. Currently, Appalachian Spring is the only dogwood cultivar […]
Posted in acidic soil, Attracting birds, Disease resistant, Disease resistant, Dogwood (Cornus), Dogwood borer, Drought tolerant, Fertilizing plants, Heat Tolerance, mulching, Ornamental fruit, plant nutrition, Spring flowering, watering tips, Wildlife attractant, winter hardiness Comments Off on ‘Appalachian Spring’ Dogwood Highly Disease ResistantSomething New to Grow – Esperanza, Yellow Bells
Posted by Hugh on March 22nd, 2013
Esperanza or Yellow Bells (Tecoma stans) is a 6 foot tall perennial shrub that grows in South Texas and Mexico (USDA zones 8-10). Esperanza means “hope” and it is destine to become a popular flowering annual in more U.S. Southeastern gardens. It demands a well drained soil […]
Posted in acidic soil, alkaline soil, Bee Favorite, Butterflies, Disease resistant, Drought tolerant, Esperanza (Tecoma), Heat Tolerance, Native Plant, Planting tips, Repotting plants, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant, watering tips Comments Off on Something New to Grow – Esperanza, Yellow BellsEarly Blooming Cornelian Cherry In The March Garden
Posted by Hugh on March 9th, 2013
Cornelian cherry (Cornus mas) is a multi-stemmed, low-branched dogwood tree or shrub. It typically grows 20-25 feet tall and slightly less in overall width (USDA hardiness zones 4-7). Tiny, golden yellow flowers appear in late winter, around March 1st in my east Tennessee garden, and remain in bloom through most of the month despite cold […]
Posted in Attracting birds, compact tree, Cornelian cherry (Cornus mas), Deer resistant, Disease resistant, Dogwood (Cornus), Drought tolerant, Green Privacy Screen, Heat Tolerance, Ornamental fruit, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Trees & Shrubs, Winter flowering, winter hardiness Comments Off on Early Blooming Cornelian Cherry In The March GardenEpimediums Excel As Dry Shade Groundcovers
Posted by Hugh on March 7th, 2013
Epimediums, aka barrenwort or fairy wings, are slow-growing groundcovers which are hardy in USDA hardiness zones 4-9. Foliage varies by species, variety, and the season of the year. Most are deciduous, but some evergreen in the Southern Appalachian region (zones 6 and 7). The leaves of some may be chartreuse in spring, green in summer, […]
Posted in acidic soil, Barrenwort (Epimedium), Deer resistant, Disease resistant, Drought tolerant, Fertilizing plants, Ground cover, Hummingbird, Perennials, Planting tips, Southern Appalachian Region, Spring flowering, Summer heat tolerant, watering tips Comments Off on Epimediums Excel As Dry Shade GroundcoversA Variegated Ornamental Grass Is ‘River Mist’ Sea Oats
Posted by Hugh on March 5th, 2013
River Mist Northern sea oats (Chasmanthium latifolium ‘River Mist’), formerly Uniola latifolia, is a recent plant introduction with striking green and white variegated foliage on slightly arching stems. River Mist grows shorter than the species, 30-36 inches tall and 24-36 inches wide. Northern sea oats is one of the more shade tolerant of the ornamental […]
Posted in Container growing, Deer resistant, Disease resistant, Disease resistant, Drought tolerant, Fertilizing plants, Heat Tolerance, Native Plant, Northern sea oats (Chasmanthium), Ornamental fruit, Ornamental Grasses, Perennials, plant nutrition, Southern Appalachian Region, Summer heat tolerant, Winter Garden Interest, winter hardiness Comments Off on A Variegated Ornamental Grass Is ‘River Mist’ Sea OatsZelkova Becoming Dominant Urban Street Tree
Posted by Hugh on March 1st, 2013
Japanese zelkova (Zelkova serrata) is a 60-90 feet tall shade tree with structurally strong branches. Fast growing zelkova may grow 2 feet or more in a single year. Belonging to the elm family (Ulmaceae), zelkova exhibits several elm-like features, including a vase shaped branching habit. Its very different exfoliating mottled bark distinguishes it from elms. […]
Posted in acidic soil, alkaline soil, Disease resistant, Drought tolerant, Fertilizing plants, Large Shade trees, Planting tips, Southern Appalachian Region, Trees & Shrubs, watering tips, Winter bark, Zelkova Comments Off on Zelkova Becoming Dominant Urban Street Tree
