… rigida 'Old Royal Fragrance'), a nonhardy South American perennial that has naturalized in the southern states. It has pairs of stiff, deeply-toothed leaves and square stems. In a growing season in the Chicago area, gardeners can expect this plant to reach 1 foot in … and the bad-tasting compounds in the leaves deter deer from browsing its blooms. The species is hardy to zone 7 and will not survive winters in Chicago. …
Type: Garden Guide Plant
… take a moment to look across the lakes toward the new Plant Science Center building. Inside is the Dixon National Tallgrass Prairie Seed Bank. There, seeds arrive from the rare remaining parcels of the Midwest’s tallgrass prairie regions, found in sixteen states. Once cleaned, sorted, counted, packed, and frozen, the seeds are available to … rather than a restoration — it was built completely from scratch. Construction began in 1980, and by 1982 the first seeds and seedlings were planted. Nothing like this re-creation …
Type: Walks
… The start of the new year is an ideal time for homeowners to begin making plans for enhancing their garden's beauty. As … to improve the quality of your landscape — and, by extension, your life! Planting one tree in the right place is an easy and affordable way to create beauty and improve the quality of life. Trees enhance the landscape in all seasons, including winter, because they provide the “bones” of a landscape design. They …
Type: Plant Info
… 3/8" long, slightly rounded, metallic green insects. The beetles can be easily seen feeding in large groups on leaf and flower tissue. Leaves and flowers become skeletonized. The white, … of turf grass, causing dead brown patches to appear. Timing & Life Cycle Adult beetles emerge in early July and feed for four to six weeks on more than 300 species of plants. Female beetles … to plant tissue. Skeletonized leaves and petals eventually will drop off. The damage, however, is largely aesthetic, and most plants do not die from these attacks. When found in large numbers, …
Type: Plant Info
… your plant six hours of bright, but not direct, sunlight (understandably, not always possible in December). The color of the bracts will remain stronger if temperatures remain between 65 and … and be sure the plant never sits in water because its roots will rot quickly. When the plant is in bloom, it is not necessary to fertilize it. If you are interested in keeping your plant all … Information Service at (847) 835-0972 or check the January Gardening Checklist on this Web site. …
Type: Plant Info
… European bluestar is one of the few amsonia species native to Europe (Turkey and Greece) rather than North America. … of the genus Amsonia are commonly known as bluestars for the abundant small blue flowers borne in clusters at the stem tips in late spring or early summer. The foliage ranges from threadlike to willow-like and looks …
Type: Garden Guide Plant
… We know spring has arrived in northern climes when we see the cheery yellow blooms of the ubiquitous forsythias in April. Named after William Forsyth, one of the founders of the Royal Horticultural Society in … poor soils and varying moisture, but the flower buds may be tender on older cultivars. Pruning is best done immediately after flowering, giving new growth time to form flower buds. Never shear …
Type: Garden Guide Plant
… 'Alfresco' has completely double frilly white petals with a chartreuse throat. Plant bulbs in well-drained soils in a container 2 inches wider than the bulb. Leave the neck of the bulb sticking up above the … the flowering stalk from falling towards the light. Amaryllis (the old genus name that is now used as the common name for this group of plants) is native to tropical America whereas …
Type: Garden Guide Plant
… White Flounces magnolia is a double flowering form selected in 1991 as a seedling at the Arnold Arboretum in Massachusetts. Its 16-24 tepals are almost flat rather than cup-shaped. Members of the genus …
Type: Garden Guide Plant
… The white oak is the state tree of Illinois. It was the dominant tree in the oak savannas common in northeastern Illinois before European settlement. Its crown rounds out into a lovely canopy …
Type: Garden Guide Plant
