… diseases can easily be spread if trees and shrubs are pruned at the wrong time of the year. For example, oak trees ( Quercus spp.) should only be pruned in the winter months when the trees …
Type: Plant Info
… of horticulture Tim Johnson . Please contact Plant Information Service at (847) 835-0972 for more information. …
Type: Plant Info
… back in late winter. If unpruned, these cultivars can reach 20 feet, which may be too large for certain landscapes. The oakleaf hydrangea ( Hydrangea quercifolia ) flowers on old wood also …
Type: Plant Info
… ring can become compacted as the fungus continues to grow underground. There is no easy remedy for controlling fairy rings. Fungicides are not effective; nor are home remedies. The best option …
Type: Plant Info
… Please contact Plant Information Service at (847) 835-0972 or plantinfo@chicagobotanic.org for additional information. …
Type: Plant Info
… the pumpkins are not close to being ripe, you can place apples around them to have them ready for fall, Halloween, and Thanksgiving festivities. Apples produce ethylene, which will hasten the …
Type: Plant Info
… up the tubers, shake as much soil off as possible, and set them aside in the garage to "cure" for two to three weeks. The curing process allows the tubers to develop callus tissues to cover …
Type: Garden Guide Plant
… by genus and is consistent with their natural habitat. While requiring adequate sunlight for a stunning bloom display, most orchids will not tolerate sustained direct sun. Many varieties …
Type: Garden Guide Plant
… by genus and is consistent with their natural habitat. While requiring adequate sunlight for a stunning bloom display, most orchids will not tolerate sustained direct sun. Many varieties …
Type: Garden Guide Plant
… northern Illinois. This variety was developed at the Chicago Botanic Garden; it was selected for its incredibly saturated dark violet-purple flowers and vigorous growth. It is part of the …
Type: Garden Guide Plant
