… buds are set. Monitor roses for insects and diseases. Check daily for black spot, especially in wet weather. Do not handle rosebushes if foliage is wet and infected. Wait until leaves have … rose slugs (small white caterpillars with black heads) and their damage (tissuelike patches on the leaves). Succulent new green growth is particularly susceptible to aphid attack. Monitor newly planted shrubs, small flowering trees, and juicy perennials for …
Type: Plant Info
… Masses of pure white flowers cover the informally arching branches in May in a dazzling display that can last for weeks. This easy-to-care-for hardy shrub is forgiving of poor soils, which endears it to Chicago area gardeners. …
Type: Garden Guide Plant
… This dwarf form of the native sneezeweed is known for its bright orange and yellow petals surrounding a chocolate … central disk. It has an extended flowering season and attracts butterflies, bees, and moths to the garden. Plant in full sun in moist soils and provide space for good air movement to discourage foliar diseases. …
Type: Garden Guide Plant
… Green leaves create the beautiful surroundings during these early fall months, but they can be the most challenging plant component for botanical artists. In this studio class, designed for students with a foundation in drawing and watercolor, the … demonstrate various methods for painting realistic looking leaves. The class will discuss how to perfectly coordinate lush leaves with white, pale flowers. Prerequisites: Botanical Drawing 1 …
Type: Item Detail
… My work is focused on breeding novel ornamental cultivars that are well-suited for the harsh environmental conditions of the Upper Midwest, with a preference for native taxa. Traits of interest in our breeding program include new flower characteristics, unique growth habits, disease/pest … chosen subjectively and made by hand, these methods are supplemented by chemical mutagenesis to introduce genetic and phenotypic variation into the program. Promising accessions are studied …
Type: Staff bio
… Dense, rounded white umbels gracefully age to mauve-pink shades above the finely dissected gray-green leaves in the height of summer. This perennial is biennial, meaning that it flowers, sets seed, and dies …
Type: Garden Guide Plant
… abundant deep pink buds from which white flowers emerge, followed by small yellow fruits in the fall. It is rated excellent to good for disease resistance by the University of Illinois Extension. Crabapples are small …
Type: Garden Guide Plant
… The white buds of Jack crabapple open to fragrant white flowers and are followed by purplish fruit in the fall. This variety is noted for its deep green foliage as well. Crabapples are small …
Type: Garden Guide Plant
… The pink buds of HARVEST GOLD® crabapple open to white flowers, followed by yellow fruit in the fall that persist into the winter. This cultivar is noted for good disease resistance by …
Type: Garden Guide Plant
… Short Stop bluestar is a cultivar developed by Intrinsic Perennials in Illinois. It is notable for its purplish black stems and silvery blue flowers. Unlike most bluestars where the foliage continues to grow taller after blooming, this one stops growing up and remains short after blooming -- …
Type: Garden Guide Plant
