Please list guidelines for planting perennials in the fall.
–Chicago
The cooler conditions of fall are quite appropriate for planting spring- and early summer-blooming perennials. The soil is warm, temperatures are moderate and usually there is adequate rainfall. It’s important for a new plant to get its root system established before cold weather and dormancy set in. A good six weeks of growth before our average fall frost date of Oct. 15 would allow newly planted perennials a chance to acclimate to their new environment and set down roots. When taking the plant out of its pot, check to be sure the roots are healthy and do not girdle or encircle the root ball of soil. Water the plants well, even during cool weather, and mulch around them once the ground has frozen completely.
What is the correct height setting to use on lawn mowers when mowing at this time of year?
–Oak Park
During hot weather, whether rainy or dry, mow your grass at the highest level possible. It is also important to keep the mower blade extremely sharp during the mowing season so the individual grass blades can be cleanly cut rather than torn. Rough jagged edges are entry points for turf disease. No more than 1/4 to 1/3 of the grass blade should be removed at any one time.
DO IT!!
Think about next year: With just a month or so left before bulb-planting time, it’s time to place your catalog orders for daffodils, tulips, crocuses and the like, advises Phil Eichler of The Urban Gardener. Also, check local nurseries for the arrival of this season’s bulbs; early shoppers choose from the largest selection and get the best of the bulb bunch.
BEST BULB FOR BANGUP BLOOMS
Fireworks in the garden: Allium schubertii’s pink blooms burst off the ends of stems of varying lengths, making it look like a little pink rocket went off just above the ground. Plant the bulb this fall for bloom next May to June. Order it at three for $7.95 from from McClure & Zimmerman, 800-883-6998 (Item No. AL20) or five for $7.50 from John Scheepers Inc., 860-567-0838 (Item No. 1279) or see the Web site at www.johnscheepers.com.
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Lee Randhava writes for the Chicago Botanic Garden. She cannot reply individually, but will select questions of general interest to answer in this column. Send your concerns to: Gardening Q+A, Home&Garden, Chicago Tribune, 435 N. Michigan Ave., Chicago, IL 60611-4041, or send e-mail to home&garden@@tribune.com.to home&garden@@tribune.com
