 |
 |
Great Lakes Regional Perennial Symposium
The Perennial Plant Association is sponsoring a one-day perennial
symposium in Columbus, Ohio, September 11, 2008....
click for details
|
 |
|
PPA Central Region Perennial Symposium
The Perennial Plant Association is sponsoring a two-day perennial
symposium in Madison, Wisconsin, August 22-23, 2008....
click for details
|
|
|
|
| Maintaining Perennials in the June and Summer Garden |
- Herbaceous perennials are revered the world over for their ornamental features and their ease of culture.That "ease of culture" does not mean that they require NO maintenance however. Adherence to a summer schedule of maintenance duties will enhance the beauty of the garden and allow perennials to flourish at optimum appearance.
- June is the month to shear the tops of spring bloomers to ensure a uniform and ornamental foliage effect for the remainder of the season. Grass shears can be used for this task. Subjects for cutting back include: Iberis sempervirens(candytuft), Aurinia saxatilis(gold dust), Arabis caucasica(rock cress), Aubrieta deltoidea(false rock cress), and Phlox subulata(moss phlox). At this time one should also cut back the foliage of spring-flowering daffodils and tulips that bloomed at least six weeks previously.
- Early to mid-June is also a good time to cut back by half tall late season bloomers to control height and eliminate the need for staking. Perennials treated in this manner will mature at a shorter height and may flower slightly later than unpruned perennials. Plants that respond to this treatment include Aster novae-angliae (New England aster) selections, Artemisia'Silver King', Boltonia asteroides(boltonia), Eupatorium maculatum (Joe-pye weed), Rudbeckia nitida'Herbstsonne' and Sedum 'Herbstfreude' (Autumn Joy sedum). During June and throughout the summer season, plan to deadhead spent flowers as the need arises. This practice has the effect of improving the overall appearance of the plant, eliminating an abundance of unwanted seedlings, and promoting a continued bloom period or later rebloom. Plants that require deadheading include Coreopsis lanceolata(lanceleaf coreopsis), Hemerocallishybrids (daylily), Alliumspecies (chives), Phlox paniculata(garden phlox) and others.
|
|
|
|
 |
|
Perennial Plant of the Year - How Is It Chosen?
From time to time we receive the question, "How is the Perennial Plant of the Year selected?" The selection process is quite simple – PPA members vote for the POY. In addition to their vote, each member nominates plants for future consideration. The Perennial Plant of...
click for details
|
|
 |
|
|
|
|
News