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  • … gardens. Serious butterfly gardeners consider not only nectar plants to attract butterflies in their graceful adult stage, but also plant host plants for the larvae or caterpillar stage. Butterfly gardeners allow for feeding and damage caused by the caterpillar stage in order to complete the life cycle. Gardeners should refrain from using insecticides that may be … Tomatoes — Tomatoes are hosts to hornworm sphinx moths, which are fairly large and attractive in the adult stage. By the time they start to defoliate the tomato plants, you may be tired of …
    Type: Plant Info
  • … Plant Information has seen many cases of hostas infected with botrytis, which can be prevalent in cool, wet weather. Botrytis on hosta first appears on foliage as water-soaked spots that begin small and increase in size. As the spots enlarge, cinnamon to dark tan rings can sometimes be seen within the … can help control both of these fungal diseases. Supplemental water should be applied early in the day so leaves have plenty of time to dry and do not remain wet for an extended period of …
    Type: Plant Info
  • … the basic form of the flower, which consists of three petals surrounded by three sepals, often in dramatic and contrasting colors and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most … derive moisture and nutrients from the air and support from another plant; few orchids grow in soil. Orchids usually prefer a diurnal temperature fluctuation, meaning warmer days and cooler …
    Type: Garden Guide Plant
  • … native to the wet tropical mountain forests of Central and South America and therefore thrives in greenhouses or conservatories where the temperature doesn't drop below 60 degrees Fahrenheit. … long-lasting, flowering bracts and are widely used by the cut-flower trade. Discovered in 1876 in Columbia, the name Anthurium means "tail flower." All parts of this stunning plant are …
    Type: Garden Guide Plant
  • … Growers Association of Northern Illinois formed to promote plant cultivars that perform well in northern Illinois. This variety was developed and selected by King Nursery in Oswego, Illinois. The primary ornamental feature of birch trees is the bark. Many of the … susceptibility to bronze birch borer infestations, birch trees can be challenging to cultivate in the Chicago region. The genus  Betula  includes an indeterminate number of species of the …
    Type: Garden Guide Plant
  • … an original tree selected for its resistance to bronze birch borer. It is considered distinct in the trade from Whitespire gray birch, a related cultivar that may be propagated from seed and … or may not be as resistant to the birch borer. Both cultivars are more tolerant of the heat in the Chicago region than other varieties of white-barked birch. About half of the birch trees … susceptibility to bronze birch borer infestations, birch trees can be challenging to cultivate in the Chicago region. The genus Betula includes an indeterminate number of species of the birch …
    Type: Garden Guide Plant
  • … from seed and may or may not be resistant to the bronze birch borer. It is considered distinct in the trade from Whitespire Senior gray birch, a related cultivar propagated by tissue culture … for its resistance to bronze birch borer. Both cultivars are more tolerant of the heat in the Chicago region than other varieties of white-barked birch. About half of the birch trees … susceptibility to bronze birch borer infestations, birch trees can be challenging to cultivate in the Chicago region. The genus Betula includes an indeterminate number of species of the birch …
    Type: Garden Guide Plant
  • … basic form of the flower, which consists of three petals surrounded by three sepals -- often in dramatic and contrasting colors and in a variety of shapes and sizes. Although some orchids are native to temperate zones, most … derive moisture and nutrients from the air and support from another plant; few orchids grow in soil. Orchids usually prefer a diurnal temperature fluctuation -- meaning warmer days and …
    Type: Garden Guide Plant
  • … see children at Camp CBG, along with their counselors, busy exploring or, at midday, resting in the shade. Nearby is a service road with a gate that bars all but official Garden vehicles; … Bergmann, David, and Gaussen elms. The Skokie River valley is a continuing experiment in how to use low-impact, natural methods to improve water quality, restore floodplains, and … hum underneath an interior chorus of birds singing, insects buzzing, and leaves rustling in the breeze. In addition to the Skokie River, lakes and the waterways linking them are a …
    Type: Walks
  • … New! In this live demonstration class, learn how to make and assemble boxes and other various hive …
    Type: Item Detail