… 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
… 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
… northern Illinois. This variety was developed at the Chicago Botanic Garden; it was selected for its abundant blooms, vase-shaped habit and unique rosy pink flower color that ages to …
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
… northern Illinois. This variety was developed at the Chicago Botanic Garden; it was selected for its two to three toned blooms that emerge creamy and age to a medium violet. It is part of …
Type: Garden Guide Plant
… northern Illinois. This variety was developed at the Chicago Botanic Garden; it was selected for its two bloom cycles, vase-shaped habit and deep blue-violet flower color. It is part of the …
Type: Garden Guide Plant
… northern Illinois. This variety was developed at the Chicago Botanic Garden; it was selected for its heavy flower production, vase-shaped habit that becomes more mounded as the season …
Type: Garden Guide Plant
