… many leaves of my plants look chewed. What is causing this and is there anything I can spray to help my plants? A. At this time of year, many different types of insects and their larvae frequently feed on the leaves of plants. Without seeing the culprit, it is not possible to determine which insect is causing the damage to your plants. Inspect your plants thoroughly in … sound practices when dealing with insect problems, and determine your personal threshold for damage. Chemical treatments should always be considered a last option. Regular monitoring of …
Type: Plant Info
… how changing distributions and phenotypes within and between populations contribute to landscape-level ecological patterns and processes, across space and time. I am particularly … in native plants, their conservation, and how they can be implemented into landscapes to positively impact human well-being and health. Current Projects: Adaptation to temperature … of USDA hardiness zones (zones 5-9). I am leading a project to develop genomics resources for A. triloba and explore genetic diversity in Asimina. Collaborators and I are sampling A. …
Type: Staff bio
… Without the backing of a million-dollar advertising campaign, plants may take many years to become recognized by even the most avid horticulturists. Heptacodium miconioides , or … rediscovered. Although it was first collected in 1907 by E. H. Wilson during an expedition to China, it wasn't until 1916 that a colleague of Wilson's, Alfred Rehder, actually attached a … to the collected specimens. Hepta- means "seven," and -codium refers to the flower head. Then for nearly 65 years, Heptacodium was forgotten. But in 1980, another expedition to China …
Type: Plant Info
… Just in Time for Halloween This is the month for ghosts, goblins, and witches, and for tricks and treats. Some … supervisor of the plant health care department. “It has long, dangling branches and I like to put purple lights on it in October—it looks pretty cool.” On a fall night, the bare limbs look … the eyes of old-fashioned china dolls. Although some birds eat the berries, the plant is toxic to humans. The Meat Eaters There’s witch hazel (Hamamelis) , Dracula orchid , and deadly …
Type: Plant Info
… and enhanced by great garden architecture and furnishings. Where a designer places a seat, for example, can reveal a great deal about how they want the garden to be perceived. Dumbarton Oaks, located in Washington, D.C., and designed by brilliant landscape … and furniture historian, John Danzer, has worked on various projects at Dumbarton Oaks to study and reproduce Farrand's many designs for this iconic American garden. In this talk, John …
Type: Item Detail
… high humidity, excellent air movement and very well drained potting media. A challenging plant for most homeowners. The orchid family consists of a large number of genera, each with its own … and contrasting colors and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most orchids tend to prefer a semitropical or tropical environment (USDA Zones 9-11) and have epiphytic …
Type: Garden Guide Plant
… The dark purple foliage of the copper beech makes a strong statement in the landscape due to its imposing size and unusual foliage color. The leaves emerge almost black and change to purple-green as the season progresses.It is thought to be a naturally occurring mutation of … of the European beech have been developed, many of which are eye-catching show stoppers for their shape (weeping, columnar or rounded) or foliage color (green, variegated, purple or …
Type: Garden Guide Plant
… Hanging sprays of small green petaled flowers with broad maroon stripes and pink lips make for an elegant display when placed where the intricacies of the flowers can be appreciated. This … and contrasting colors and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most orchids tend to prefer a semitropical or tropical environment (USDA Zones 9-11) and have epiphytic …
Type: Garden Guide Plant
… faint orange stripes on the lip and the wonderful fragrance that cattleya orchids are known for. Grow this orchid in bright light, high humidity, warm temperatures, and very well-drained … contrasting colors, and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most orchids tend to prefer a semitropical or tropical environment (USDA Zones 9-11) and have epiphytic roots, …
Type: Garden Guide Plant
… Because of its foliage, this petite plant is often mistaken for a summer-blooming bleeding heart. Its gray-green foliage is deeply dissected and ferny in … seed prolifically all over the garden, in between pavers, and even in the lawn. It is perfect for a cottage garden, where you want the plant to spread and weave itself throughout the landscape. Also use it as edging, along stone walls, or …
Type: Garden Guide Plant
