The late J.C. Raulston introduced euscaphus tree (Euscaphus japonica) to gardeners in the 1980’s. Tennessee nurseryman Don Shadow is credited with naming it “Korean sweetheart tree” which has become its more popular name. It is reliably winter hardy to USDA zone 6-b. Sweetheart tree is a small 15-20 foot tree or large shrub. The pinnately compound foliage is […]
Archive for the ‘Trees & Shrubs’ Category
Fall In Love With Sweetheart Tree
Posted by Hugh on August 20th, 2012
Posted in acidic soil, compost, Disease resistant, Heat Tolerance, Ornamental fruit, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Sweetheart tree (Euscaphis), Winter Garden Interest 
Comments Off on Fall In Love With Sweetheart TreeStrong Vertical Presence of Serbian Spruce
Posted by Hugh on August 17th, 2012
Serbian spruce (Picea omorika) rises as a tall spire in the urban landscape. A mature tree may reach 50 to 60 feet high and it creates a narrow footprint of 15 to 25 feet wide. Lateral branches uniquely bend downward while the growing tips sweep gracefully upward. Annual growth rate is slow at 12-15 inches. Two-thirds of the short dark green needles lay […]
Posted in acidic soil, Evergreens, Green Privacy Screen, Heat Tolerance, Serbian spruce, Southern Appalachian Region, Spruces (Picea spp.), winter hardiness Comments Off on Strong Vertical Presence of Serbian SpruceDawn Redwood Is Back From Extinction
Posted by Hugh on August 1st, 2012
Dawn redwood (Metasequoia glyptostroboides) was thought to be extinct until the mid-twentieth century. In 1948 dawn redwood was re-introduced into North America from Sichuan-Hubei Provinces in China. Dawn redwood grows in full sun and in well-drained, compost-rich soil. The tree struggles in dry or high pH soils. Dawn redwood will tolerate standing water for a […]
Posted in acidic soil, Bald cypress (Taxodium), Dawn redwood (Metasequoia), Disease resistant, Disease resistant, Heat Tolerance, Japanese beetles, Soil drainage, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, watering evergreens Comments Off on Dawn Redwood Is Back From ExtinctionBoxwood Blight Discovered on Pachysandra
Posted by Hugh on July 30th, 2012
In June 2012 plant pathologists at the Connecticut Agricultural Experiment Station have confirmed a natural infection of pachysandra in the landscape by boxwood blight (Cylindrocladium pseudonaviculatum), the boxwood blight fungus. The infection originated from recently installed balled and burlapped (B&B) boxwood plants. A plant inspector in Fairfield, CT noticed that an established bed of pachysandra […]
Posted in Boxwood (Buxus), Disease prone, Disease resistant, Evergreen, Ground cover, Pachysandra, Southern Appalachian Region Comments Off on Boxwood Blight Discovered on Pachysandra‘Sunburst’ Golden St. John’s Wort
Posted by Hugh on July 16th, 2012
Our native golden St. John’s wort (Hypericum frondosum) deserves more planting space in U. S. gardens (USDA hardiness zones 5-8). ‘Sunburst’ is the leading cultivar and exhibits superior traits over the species. Golden St. John’s wort forms a small, dense growing deciduous shrub, noted for its showy golden yellow flowers and attractive blue-green foliage. Sunburst grows more compact […]
Posted in acidic soil, alkaline soil, Butterflies, compact shrub, Disease resistant, Drought tolerant, Evergreens, Flowering, Heat Tolerance, Native Plant, Ornamental fruit, Pruning, Soil drainage, Southern Appalachian Region, Spring flowering, St. John's Wort (Hypericum), Summer flowering, Summer heat tolerant, Winter bark Comments Off on ‘Sunburst’ Golden St. John’s Wort‘Brigadoon’ Hypericum Wakes Up a Garden Bed
Posted by Hugh on July 13th, 2012
The bright chartreuse (almost golden) foliage Brigadoon St. John’s wort (Hypericum calycinum ‘Brigadoon’) can brighten up almost any dull garden spot. This Euro-Asian ground cover thrives in any well-drained soil under full to partial sunlight (USDA zones 4-7). Full sun may burn the summer foliage in zone 7. ‘Brigadoon’ grows 12 to 16 inches tall and spreads […]
Posted in Butterflies, Disease resistant, Drought tolerant, Ground cover, Heat Tolerance, Planting tips, Pruning, Root suckering, Southern Appalachian Region, Spring flowering, St. John's Wort (Hypericum), Summer flowering Comments Off on ‘Brigadoon’ Hypericum Wakes Up a Garden BedSelecting The Right Ivy For Your Garden
Posted by Hugh on July 5th, 2012
Have you taken the “No Ivy Pledge”? I have not. In an effort to slow defections from growing ivy, the American Ivy Society has developed a list of non-invasive cultivars. It includes several dwarf English ivy cultivars (Hedera spp.). Add a little water and fertilizer and these mini-ivies do not miss a beat. Mini- ivies […]
Posted in Aggressive grower, Evergreens, Ivy (Hedera), Planting tips, Southern Appalachian Region, Vine, watering tips Comments Off on Selecting The Right Ivy For Your GardenPromising Hemlock Adelgid Research
Posted by Hugh on July 2nd, 2012
Proper care of hemlock trees is important for their survival. Hot dry summer weather appears to slow population growth. During periods of severe drought, shallow rooted hemlock trees should be irrigated. Prune dead and dying branches from trees to promote new growth. Also, limit the amount of nitrogen fertilizers to hemlock(s), as it promotes heavier […]
Posted in Evergreens, Hemlock (Tsuga), Hemlock woolly adelgid, Native Plant, plant nutrition, Southern Appalachian Region, watering tips Comments Off on Promising Hemlock Adelgid ResearchPest Update – More Pesticide Options Available Against Hemlock Adelgid
Posted by Hugh on June 29th, 2012
You may be able to prevent or save tree and shrub hemlock(s) from woolly adelgid. This serious pest has two generations per year. The first generation hatches in March and April from overwintering adults (as many as 300 eggs per adult) in white cottony masses on the small twigs. The crawlers (nymphs) hatch and feed in […]
Posted in Hemlock (Tsuga), Hemlock woolly adelgid, Insect (Pest) Problems, Native Plant, Southern Appalachian Region Comments Off on Pest Update – More Pesticide Options Available Against Hemlock AdelgidNo Scorch ‘Verdoni’ Dwarf Hinoki Cypress
Posted by Hugh on June 22nd, 2012
For a small urban garden many dwarf evergreen conifers are a good fit. There are so many to choose from and Verdon hinoki cypress (Chamaecyparis obtusa ‘Verdoni’) is one of the finest. Its fan shaped gold-edged green foliage will light up almost any garden locale. It makes a great garden companion with short growing perennials, […]
Posted in acidic soil, Disease resistant, Drought tolerant, DWARF CONIFERS, Evergreen, Heat Tolerance, plant nutrition, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, Verdon hinoki cypress, watering tips, winter hardiness Comments Off on No Scorch ‘Verdoni’ Dwarf Hinoki Cypress
