… Hellebores or Lenten roses are prized for their flowers which appear in late winter or early spring and are often the first flowers to appear in the Chicago garden. Grape Galaxy hellebore grows into a low mound about 2 feet tall … spring but are protected in hotter months. The entire plant contains chemicals that are toxic to humans but makes them unappealing to deer and other wildlife. …
Type: Garden Guide Plant
… with a small point on the tip. The corona is cup shaped, opening light yellow and maturing to a light yellowish pink with a touch of light yellow at the rim. The cup encloses 6 segments of … than the corona and protrudes outward from the cup, tapering into a tubular shape and fading to a yellowish white. The bulbs are toxic and will not be eaten by deer or rabbits. The name Narcissus comes from the Greek word for narcotic and is tied to the myth of a young man known as Narcissus who fell in love with his …
Type: Garden Guide Plant
… walking, and reflective dialogue, using evidence-based mindfulness practices. Learn how to use breathing, walking, and everyday awareness to cultivate calm, reduce stress, and connect more deeply with yourself and the natural world. … your relationships. This class includes both indoor seated and outdoor walking portions. Dress for the weather. Class will meet in different locations in the Garden every two weeks to take …
Type: Item Detail
… Q. What are the current recommendations for using horticultural oil to protect mature trees from insect attack? A. Spraying trees or shrubs with a horticultural, or dormant, oil is recommended as a way to help control repeated attacks of scale, mites, and aphids. Some of the common pests that can …
Type: Plant Info
… the head identify this caterpillar as a true armyworm ( Mythimna unipuncta ), almost identical to the fall armyworm ( Spodoptera frugiperda ). A fall armyworm has an inverted Y-shape on its head and is found in larger numbers late summer/fall. Adult armyworm moths migrate north to Illinois from southern states to mate and lay eggs on the bottom of grass blades and other … insects eat leaves, not roots. Heavy infestations can easily be controlled with insecticides. For more information about armyworms and control measures, please send an email to …
Type: Plant Info
… of Rhytisma fungi. Leaves that are infected with this fungal disease have round, light green to yellowish-green areas approximately ½ to 1 inch in diameter that eventually blacken. Heavily infested trees may lose their leaves … contact Plant Information Service at (847) 835-0972 or email plantinfo@chicagobotanic.org for a positive diagnosis and if you feel chemical treatment options are warranted. …
Type: Plant Info
… floral bracts contrast with hot pink and purple primary bracts , with thick hot pink to red stems. Once in bloom the 18-inch flower spikes flowers will last for five months or more under proper conditions. The leaves are lime green with sharply serrated … vase plants or urn plants. The bases of their curved leaves collect water and can be home to aquatic insects and microorganisms. Plants take several years to flower and will usually …
Type: Garden Guide Plant
… in September and October when the large (6-inch tall by 5-inch wide) double flowers begin to open. Reliably hardy in the Chicago region, the plant has broad green leaves that are produced in spring and die back in early summer, so the flowers appear to spring from the bare soil in fall. Deer and rabbits dislike the chemicals in the sap, but slugs, for some reason, appear resistant to the chemicals (only a problem in wet falls). Plant these …
Type: Garden Guide Plant
… much desired by birds. It has a distinctive horizontal branching growth habit that is similar to the native pagoda dogwood. This cultivar's parent, however, is native to China. Members of the genus Cornus , commonly known as dogwoods, are welcome in the home garden for their multi-season interest -- be it flowers, fruit, foliage, and/or bark -- and their range …
Type: Garden Guide Plant
… with the mature green leaves. Clustered white flowers appear in late spring and mature to black fruits which are attractive to birds. Members of the genus Cornus , commonly known as dogwoods, are welcome in the home garden for their multi-season interest -- be it flowers, fruit, foliage, and/or bark -- and their range …
Type: Garden Guide Plant
