Search

  • … October’s falling leaves signal a major transition for Chicago-area gardeners. Although daytime temperatures may be pleasant and even balmy this … Gently lift up tubers using a pitchfork. Shake off excess soil. Dry out tubers in a warm, dry place. Don’t separate the mass of tuberous roots until they have completely dried. Place dried tubers, spaced to allow for adequate air circulation, in labeled cardboard boxes …
    Type: Plant Info
  • … of trees, shrubs, annuals, perennials, vegetables, fruits, and houseplants plant selections for northern Illinois Diagnosis and treatment options Control of insects, diseases, and cultural … mulching, and more Plant and insect identification Assistance  Locating purchasing sources for particular plants Specimen collection and submission Please be sure to read our guidelines for specimen collection and submission if you will be bringing in a sample for diagnosis. If you …
    Type: Page
  • … a future on this planet,” said Kayri Havens, Ph.D., chief scientist of the Negaunee Institute for Plant Conservation Science and Action at the Garden. “It is so gratifying to see our studbook … 50% of known flowering plants are estimated at risk of extinction . And you don’t need to visit Hawaii to find rare and endangered species, they are also holding on in the face of habitat … plant extinctions here and around the world, and the plant studbook approach is now one of the best hopes for thousands of rare and endangered species. “It’s clear we’ve devastated …
    Type: Blog
  • … "flamingo flowers" throughout the year. It is pollinated by a number of tropical bees that visit the pollen sacs in a spiral up the inflorescence. The seeds are contained in a berry with …
    Type: Garden Guide Plant
  • … The most common tree in the Chicago area is from Europe—and that’s bad news for our native plants and animals. Introduced to the United States in the early 1900s as an … volunteers, have worked since 1988 to repair and restore this important woodland habitat. Visit: McDonald Woods is located along Lake Cook Road from the Garden entrance east to Green Bay …
    Type: Blog
  • … college class called “The Natural Environment in Winter.” It was January, and we met outdoors for about three hours—regardless of the temperature. I showed up at the first class wearing … just around freezing, I wear leggings and [insulated] jeans.” She’ll pull on a tank top and place two long-sleeved tops over it. “One is thermal and tight—the other is a Garden work shirt. … I get cold quickly. A little perspiration can make you chilled and a change of clothes is best.” Apply Sunscreen “You still get a lot of [UV] exposure and I use sunscreen when I’m skiing …
    Type: Blog
  • … and you can see why this Dyckia is named Grape Jelly. You can also see why the common name for Dyckias is the sawblade plant. Dyckias are survivors. They're native to arid, rocky terrain … Dyckias need sandy or rocky fast draining soil. Though they'll tolerate some shade, color's best in full sun. During the spring growing season they need more frequent watering, but keep …
    Type: Garden Guide Plant
  • … species has done so well that some cultivars are invasive, particularly Purpurascens. It's best to look for late-flowering clones that will not have time to set seed. It is resistant to deer. …
    Type: Garden Guide Plant
  • … to the American hackberry; however, because of its adaptability, it is a tough tree, good for urban areas. This native woodland tree is best recognized by its corky, warty bark and sharply toothed leaves, which are often covered with …
    Type: Garden Guide Plant
  • … the plant. Fall color ranges from bronze-red to purplish-red. Due to its sharp thorns, it is best not to plant this tree on a front lawn or where children may be playing. A recommended … selection, Inermis, is a thornless variety. The cockspur hawthorn is an effective tree for the landscape. Archived Copy: This content was captured before February 2022, and is no …
    Type: Garden Guide Plant