Search

  • … Purple Fountain European beech is both a weeping and columnar form of the species and thus suitable for narrow spaces in the home landscape. It is a sport or naturally occurring variation of F. sylvatica 'Purpurea Pendula' but the foliage is not as deeply purple and it has a narrower habit than its parent. A wide range of cultivars of …
    Type: Garden Guide Plant
  • … Description: If this state-endangered owl is seen at the Garden, it is either flying over, or roosting on the ground, in the Dixon Prairie. …
    Type: Birding
  • … 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 … scale and obscure scale, honeylocust mite, European red mite, and spruce spider mite. The oil is applied when the tree or shrub is dormant, before it buds out (usually in March), when the temperature is at least 40 degrees …
    Type: Plant Info
  • … Q:  I have a lot of Creeping Charlie weeds in my lawn.  When is the best time to apply a weed killer? A: Mid- to late autumn is an excellent time to apply post-emergent herbicides to control invasive weeds in turf such as … after application to allow more leaf surface to absorb chemicals.  Apply only when no rain is expected for approximately 24 hours.  Also, it is important to apply weed killer when the air …
    Type: Plant Info
  • … Aloysia virgata is more commonly known as sweet almond verbena, or incense bush, and originated in Argentina. The primary attraction of sweet almond verbena is its white flowers. The flower is not only attractive, but it also smells good; hence the second common name of incense bush. …
    Type: Garden Guide Plant
  • … American bittersweet is a twining vine with alternate leaves that are ovate, glossy, and toothed. In early summer it … are produced at the branch tips. Each berry emerges from a three-valved orange capsule, which is persistent. It is found in oak savannas, dune areas, and scrambling among rocks throughout eastern and central …
    Type: Garden Guide Plant
  • … 'Clara Curtis' is a very late flowering cultivar of Korean mum with large, light pink to lavender "daisies" covering the foliage. An heirloom cultivar originally from Russia, this plant is sometimes sold under the name of 'Country Girl'. Reliably hardy in the Chicago area, this is a mum that gardeners can plant and forget about; it thrives in full sun and average soils with …
    Type: Garden Guide Plant
  • … Spring Grove Ginkgo is a dwarf tree with an upright pyramidal shape. It will mature to a height of 6 feet and width … Grove' are bright green in color and grow in a whorled arrangement around the branches. This is a male clone and will not produce the distinctive strong smelling fruit. 'Spring Grove' has … and with its dwarf size makes a nice accent in a smaller garden space. Like all Ginkgoes it is one of the most pollution-tolerant trees and works well in the city. Ginkgo is sometimes …
    Type: Garden Guide Plant
  • … ‘The Swan’ is a semi dwarf shrub typically 6 ft. tall with a spread of 6 ft. The conical flowerheads are 6 … to the fact that the emerging flowers are like an ugly duckling. The color of the flowers is not affected by the pH of the soil. The ’Swan’ does well in full sun to light shade and is moderately drought- tolerant.It blooms on new wood so the flowers are not susceptible to late …
    Type: Garden Guide Plant
  • … Hydrangea macrophylla is a deciduous shrub that grows 3-6’ tall and wide. It features dark green leaves and large clusters of flowers which are either lace cap or mophead in structure. Let’s Dance Easy is a mophead hydrangea which will bloom on both old and new wood from early to late summer. The … the flowers age. Although the plant is hardy to Chicago’s Zone 5, it benefits from a sheltered site, winter mulch and burlap wrap to protect the buds and stems from dying to the ground during …
    Type: Garden Guide Plant