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  • … oak is a relatively recent introduction that is a cross between the English oak ( Q. robur ) and the swamp white oak ( Q. bicolor ) notable for its columnar habit. The genus Quercus includes … to North America; the Chicago Botanic Garden's collection contains more than 60 varieties and over 1,000 individual trees. Twenty oak species are native to Illinois. Oaks are slow … acorns take two years to mature (biennial). Oaks are often imposing shade trees at maturity and provide habitat and food for a variety of wildlife. Archived Copy: This content was captured …
    Type: Garden Guide Plant
  • … introduction, which produces numerous spikes of small, tubular flowers that have burgundy buds and bracts, opening into violet-blue flowers, giving them a two-tone effect. It was the result of … sages are highly recommended for perennial gardens in northern climates. They are fully hardy and produce bushy little plants with aromatic, wrinkly gray-green leaves. The flowers attract … best blooms. The meadow sages were derived mostly from the Eurasian species Salvia nemorosa and Salvia pratensis . There are more than 900 species of Salvia , native to Eurasia, the …
    Type: Garden Guide Plant
  • … doesn't look fuzzy. That's because the velvety hairs covering the leaves are clear or white and so almost invisible. What you see are the fuzzy hot pink spikes of flowers, and you'll see them from the beginning of summer into fall. Bees, butterflies, and hummingbirds will spot them too, and come flying. This sage comes from the edges of moist …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant
  • … with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped and held close to the branch. Spring to early summer abundant blooms tend to be in white or pink tones, depending on the species and/or cultivar. While individual flowers are quite small, they occur in clusters of … best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and easy-care performers in northern climates. The Chicago Botanic Garden's collection includes …
    Type: Garden Guide Plant