Planting daffodils and thinking ahead to spring is a perfect way to spend a crisp autumn day. For tree and plant advice, contact the arboretum’s Plant Clinic (630-719-2424 or plantclinic ...

Spring-blooming bulbs won’t bloom unless they spend enough time in cold soil; most species need their bulbs chilled below 40 degrees for 12 to 14 weeks before they sprout.