Search

  • … and given master classes at Yale and Toronto. She has also served on the GCNA exam committee for over a decade, first as juror and currently as co-chair. Margaret's academic degrees (S.B. …
    Type: Event for Calendar
  • … session will showcase the results of the challenge with a full group slide show. Get ready for ideas to set you free, to shake you out of ruts, and charge you up to make new photographs.  …
    Type: Item Detail
  • … rose blooms in late winter and Lenten rose in very early spring. The flowers can persist for up to eight weeks if the plants are well-sited. They prefer partially shaded conditions in …
    Type: Plant Info
  • … Q. What are the current recommendations for using horticultural oil to protect mature trees from insect attack? A. Spraying trees or …
    Type: Plant Info
  • … insects eat leaves, not roots. Heavy infestations can easily be controlled with insecticides. For more information about armyworms and control measures, please send an email to …
    Type: Plant Info
  • … Please contact Plant Information Service at (847) 835-0972 or plantinfo@chicagobotanic.org for additional information. …
    Type: Plant Info
  • … contact Plant Information Service at (847) 835-0972 or email plantinfo@chicagobotanic.org for a positive diagnosis and if you feel chemical treatment options are warranted. …
    Type: Plant Info
  • … newly seeded lawns moist until seeds germinate. Do not allow the grass to become overly dry for the first year and limit excessive foot traffic. Begin mowing when the grass reaches a height …
    Type: Plant Info
  • … month to fertilize any tree or shrub that looks like it might benefit from extra nutrition — for example, has stunted growth, has failed to fully flower or leaf out, or has undersized fruit …
    Type: Plant Info
  • … Prune grapevines according to selected method. For detailed information on pruning grapevines, contact plant information at (847) 835-0972 to …
    Type: Plant Info