… time during the growing season. They reproduce many times a year, and populations can easily get very large. Most do not fly, but some have small transparent wings. Damage Heavy infestations … black fungus. However, a large amount of sooty mold will interfere with a plant’s ability to photosynthesize and exchange oxygen. Treatment & Solutions Since most aphids are soft-bodied … it is important to carefully follow directions on the package when applying insecticidal soap. For additional aphids treatment recommendations, please contact Plant Information Services at …
Type: Plant Info
… cold-hardiness of its native parent and the longer needle length of the Asian one. It grows best in moist soil, where it can reach 35 feet tall. …
Type: Garden Guide Plant
… foliage. Most other perennials have finished blooming. Trees are going dormant and preparing to drop their leaves. But this beauty is just getting started. The only thing that isn't lovely … blooming in September or October, depending on the cultivar and the weather, and keep it up for three or four weeks or until they are wilted by frost. Some, such as Tricyrtis formosana, … to Tankersley. “I plant mine in amongst the hostas so the deer eat the hostas before they get to the tricyrtis," he says. All the shade standards are good companions for toad lilies: …
Type: Plant Info
… Q. How do I know when my pumpkins are ready to harvest? If pumpkins were planted at the proper time of the year, they will be ready to harvest in October. The most obvious way to determine if a pumpkin is ripe is when it loses its green color and turns a solid-orange … the pumpkins are not close to being ripe, you can place apples around them to have them ready for fall, Halloween, and Thanksgiving festivities. Apples produce ethylene, which will hasten the …
Type: Plant Info
… Q. Will arborvitae grow in the shade? A. Arborvitae ( Thuja ) perform best when planted in a minimum of six hours or more of direct sun per day. However, they can … tolerate light shade in areas that only receive four hours of midday sun per day. According to Michael Dirr, Giant Arborvitae ( Thuja plicata ) may be more shade tolerant than Eastern or …
Type: Plant Info
… lavender flower spikes that attract hummingbirds and butterflies; the seeds are attractive to birds. Anise hyssop is not fussy about soil types or conditions, as long as it is well-drained. It will tolerate partial shade but does best in full sun. The crushed leaves smell of licorice. …
Type: Garden Guide Plant
… This curious mutation found at Edwin Carstens Nursery in Germany is a miniature evergreen best used in a rock garden. The tightly packed spiky branches bear very short needles adorned … winter. It will not exceed 20 inches in height and grows very slowly. It needs good rich soil to thrive and will need to be watered during dry periods. …
Type: Garden Guide Plant
… agnus-castus ) blooms throughout the Chicago Botanic Garden from July through October. Similar to butterfly bush ( Buddleja davidii ) in the Chicago area, chaste tree is considered a dieback shrub. During winter, stems die to the ground, but the roots survive and produce new growth the following spring. Chaste tree is butterfly-friendly, with fragrant blue spikes against greyish-green leaves, and it is best planted in spring, in full sun and well-drained soil. …
Type: Garden Guide Plant
… After severe winter weather, gardeners face bigger challenges than usual in the spring, due to a “perfect storm” of weather conditions that scorch evergreens, protect plant predators, … from a severe winter burn, and gardeners must decide on a case-by-case basis whether it’s best to remove the specimen. Unfortunately, some evergreens will be a total loss. This is … the situation by evening out the bush. Branches that have been girdled—or chewed all the way around—are likely to die and should be pruned back. White drifts can also promote snow molds, …
Type: Blog
… The winter landscape, freed from its summer splendor, may appear bare and forlorn to some, but for those who take the time to stroll around the Garden, there are wonders to contemplate—and to … morning or in the afternoon as the sun begins to set. “At those times of day in winter, you get the added benefit of ice crystal reflection on the snow, causing a sparkling effect. Snow …
Type: Plant Info
