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After they have been made safe, the next thing to do for old trees is renew their vigor. Enough has been said above (Chapter IV) about tree feeding to provide guidance for doing or bossing this work yourself. To recapitulate: Your soil strata and the levels at which your trees' roots run can be determined by digging a few test holes. If the root systems are predominantly shallow, simple broadcasting, and spiking the turf, may be the soundest way to reach them with fertilizer.
"How Long Must We Wait for Shade?" One quick answer to the new home owner's most pressing question is provided by Princeton Nurseries' new strain of locust called the Shade master. The stock in rows above is only three years old. At right, a specimen of the same strain after three more years. The backboard is eighteen feet high. |
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