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  • … a moderate fragrance from early summer until frost. Pointed tea rose-like buds are produced on long stems on a plant maturing at 6 feet in height. Its foliage is disease resistant, and the rose performs … with adequate water, responding well to applications of fertilizers formulated specifically for roses. Mound the base of the plant with mulch/leaf mold after the first hard frost to protect …
    Type: Garden Guide Plant
  • … Birchleaf spirea is named for the shape of its leaves, which resemble those of the birch genus. White flowers appear in June on new wood. The genus Spiraea consists of small to medium sized flowering shrubs with a … 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 …
    Type: Garden Guide Plant
  • … or as a spiller in a container, that dense, bright mass of color acts as a "footlight" for taller plants with darker leaves. But the color show doesn't end there. 'Angelina' is a constant source of yellow flowers throughout the summer, and its leaves take on orange tones in autumn. Stonecrops are tough. They're native to rocky, arid mountains and … rock gardens and as spillers in containers. Or plant them between pavers. They'll even thrive on green roofs or a south-facing living wall. …
    Type: Garden Guide Plant
  • … stellata ‘Giovanna’s Select’ is a seed strain featuring purple, blue, and blue-purple flowers on 3 feet tall plants that thrive under cool, moist, shady conditions. This species is an annual … area but is perennial in USDA zones 9 to 10. Free of most insect and diseases (botrytis on the petals in areas with poor air movement is the exception). Seeds are started in February in a cool greenhouse (like pansies and primulas) for planting out after the last of the hard freezes. Taxonomic research using DNA analysis …
    Type: Garden Guide Plant
  • … in June with 6-12” long racemes of fragrant, white flowers. Flowers bloom simultaneously on each raceme providing a dramatic visual display. There may be one or two additional flushes of … prefers slightly acidic, moderately moist and fertile, well-drained soils in full sun (needed for best flowering). It can be slow to establish and may require three years or more to flower. … can be aggressive, producing rooting surface runners. It will need a sturdy support structure on which to grow; choose growing sites wisely because plants dislike being transplanted. …
    Type: Garden Guide Plant
  • … As the weather cools, smart kitchen gardeners search for ways to stretch the growing season, hoping for a few more salads…an extra harvest of kale…or (gasp!) truly fresh veggies on the table at Thanksgiving. The idea of season extension—gaining a month longer to grow crops … the soil warmer for longer; limits weather damage; helps hold in moisture; and is easy to take on and off and to store. At the Regenstein Fruit & Vegetable Garden, raised beds are built with …
    Type: Plant Info
  • … Elegans sets the benchmark for large, blue-green-leaved hostas. Introduced in 1905, it is noted for the size, texture, and substance of its foliage. Considered a slow grower, Elegans may take … easy to grow, and long lived. Although they produce flowers held high above the foliage on long stalks called scapes, they are grown primarily for their foliage and neat habit. Hostas …
    Type: Garden Guide Plant
  • … colors also fade, and the leaves turn brown, wither, and drop. Then the trees become dormant for winter.     Color(ing) Activity Color the leaves according to the pigments they produce. … maple The darker anthocyanin hues turn these feathery leaves the color of shadows—fitting for the spooky month of Halloween.     Sweetgum Like the maple, this tree puts on an awe-inspiring display of xanthophyll, carotene, and anthocyanin all together.   Ginkgo …
    Type: Page
  • … most unusual species in a family filled with a lot of diversity. Virtually leafless; relying on the green photosynthetically active roots for it's energy supply.& Multiple pendulous spikes of many pale green flowers with creamy white … in winter time. A challenge for most homeowners to grow, requiring a slab of bark to grow on, consistent daily moisture except for a short dry period in fall needed to set the flower …
    Type: Garden Guide Plant
  • … Persistence can be a good trait for prairie plants. Take this tale of the return of the Hill’s thistle ( Cirsium hillii ) to the … assistant ecologist for the natural areas at the Garden. While managing some tall vegetation on the gravel hill of the Dixon Prairie in summer 2016, I noticed something I have not seen in a … prefers drier prairies with less competition from taller plants. A number of species of bees visit and pollinate this plant. The plant is believed to be monocarpic, which means the plant …
    Type: Blog