… rhizomes and seed. It generally produces single, narrow prickly stems that expand underground to form colonies. The aggressive root systems of these plants can go down 6 to 7 feet into the soil and travel for many yards underground before surfacing in another spot. These extensive root systems make … thistle Cirsium discolor Pasture thistle Image By Fritz Flohr Reynolds - https://www.flickr.com/photos/fritzflohrreynolds/15143788606, CC BY-SA 2.0, …
Type: Plant Info
… Jamie Berlin is the horticulturist for the Lavin Evaluation Garden and Green Roof Gardens at the Daniel F. and Ada L. Rice Plant Conservation Science Center. The Lavin Evaluation Garden is home to the Garden's Plant Evaluation Program, featuring plants best suited for Midwestern gardens and those in similar climates. The Green Roof includes a south …
Type: Staff bio
… I manage the Plants of Concern, a citizen science rare-plant monitoring program designed to gather standardized, long-term regional monitoring data to detect population trends. The program is a collaboration of trained citizen scientists, land managers, and researchers using science to best conserve rare plants and habitats. In addition to our regional monitoring work, Plants of …
Type: Staff bio
… is a newer cultivar from France that is very low-growing, at about 2 feet tall and spreading to 3 feet or more. It has better flowering than ‘Arnold Dwarf’. In France, it is marketed as Casque D’or. Forsythias are very adaptable to poor soil 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
… July ushers in peak summer weather for our USDA cold hardiness zones, with average daily temperature hovers in the mid-70s, making … models anticipate hotter, drier summers in the future. For gardeners, it’s important to monitor moisture levels, especially for new plantings, container plants, and vegetables. As … mulch garden beds immediately after weeding with 2 to 3 inches of shredded bark. This is the best way to help retain soil moisture and keep weeds under control. Take notes and photos to plan …
Type: Plant Info
… Volunteer Opportunities Thank you for your interest in joining our Volunteer team at the Chicago Botanic Garden! Our new volunteer intake has paused for the season. We will be sending an email to schedule phone interviews sometime after January 2026; all inquiries will be responded to in the order they are received. We ask that you please refrain from using our volunteer login, … Garden! Our new volunteer intake has paused for the season. We will be sending an email to schedule phone interviews sometime after January 2026; all inquiries will be responded to in …
Type: Page
… Grants and Awards American Institute for Conservation, Ross Merrill Award, May 2019 The Lenhardt Library is the recipient of the Ross Merrill Award for Outstanding Commitment to the Preservation and Care of Collections. This award honors institutions in North America that have shown an exemplary and sustained commitment to conservation and collections care through interpretation, research, scholarship, education, …
Type: Page
… of trees, shrubs, annuals, perennials, vegetables, fruits, and houseplants plant selections for northern Illinois Diagnosis and treatment options Control of insects, diseases, and cultural … purchasing sources for particular plants Specimen collection and submission Please be sure to read our guidelines for specimen collection and submission if you will be bringing in a sample … sample. Please follow our guidelines for collecting and submitting samples in order for us to provide you with accurate answers to your questions. Prevention of boxwood blight Plant …
Type: Page
… The alpine Japanese spirea is a miniature cultivar that grows to a mound of two feet, spreading to three feet, with tiny densely set leaves. It features flat clusters of rose-pink flowers. The … are quite small, they occur in clusters of inflorescence that can be very showy. Spireas are best used in groupings in a shrub or mixed border, where they are valued as tough, reliable and …
Type: Garden Guide Plant
… Galanthus nivalis 'Atkinsii') is a very showy, large-flowered snowdrop, among the first bulbs to bloom in early spring. The name was given to the genus by Carl Linnaeus in 1735. Native to large areas of Europe, from Spain to the … have small, fleshy tails containing substances attractive to ants, which distribute the seeds. Best planted in partial shade in moist, hummus-rich soil, snowdrops can be naturalized in grass …
Type: Garden Guide Plant
