by Becky Robert | Jul 27, 2009 | Pests & Diseases, Special Interest
We are excited about weevils at the Scott Arboretum. The stem-boring weevil, Rhinoncomimus latipes, has been found throughout the Arboretum nibbling on the invasive mile-a-minute weed, Polygonum perfoliatum. Mile-a-minute weed is an annual Asian vine that has invaded...
by Becky Robert | Jul 23, 2009 | Garden Plants, Happenings
If you are a native plant fan, you should be familiar with Apios americana (A. tuberosa), the ground nut. This plant’s tuber was a vital source of food for Native Americans and early colonists. A member of the pea family, Papilionaceae, this herbaceous vine has...
by Becky Robert | Jul 15, 2009 | Pests & Diseases
If you have visited the Dean Bond Rose Garden this growing season, you may have noticed a large section of the climbing and hybrid tea beds now contains marigolds, Tagetes patula cultivars, instead of roses. This April we removed about 17 rose shrubs because they were...
by Becky Robert | Jun 26, 2009 | Pests & Diseases
This month you may have noticed shriveling of some stems on your clematis, while others of us have been so unlucky as to experience a dramatic demise of the entire plant shriveling and turning black in a week. These symptoms are typical of a disease called clematis...
by Becky Robert | Jun 18, 2009 | Garden Practices, Happenings
During the month of June, gardens all over the greater Philadelphia area are celebrating the World’s Largest Garden Party. With graduation and father’s day celebrations, you may find yourself holding a garden party this month too. Here are some tips and...
