July 1, 2017

Summer Rain

This summer, our garden is lush.
Double-click for a full-screen view.
It rained yesterday afternoon.  It was a glorious thunderstorm that dropped better than a half an inch of rain on our garden.  As this is written, the skies are overcast and there is a promise of even more rain this evening.

Our four rain barrels are
full, and are augmented
by twenty-plus re-purposed
cat litter jugs, each
holding three gallons.
Last year at this time, we had four empty rain barrels across the back of our home.  Those rain barrels were at the receiving end of an elaborate system of gutters, diverters, and underground drain pipes to collect and carry away rain water.  It was a beautiful system; intelligently conceived and built with back-breaking labor.  But without rain, it was also pointless.  We went weeks without a drop of rain in the summer of 2016.

So, instead, with a new garden filled with plants with limited root systems, we scrounged water from every possible source.  We doled out that water with a figurative eyedropper, conserving every pint.  We watered at six in the morning to ensure no water was lost to evaporation.  The garden made it through that long, hot summer but we were exhausted by the effort.

This year, our four rain barrels are completely filled with 220 gallons of neutral pH and chlorine-free water, and an additional reservoir is stored in twenty re-purposed, three-gallon cat litter jugs.  We lavish water on container gardens to keep them blooming and on new perennials to encourage root growth.  What isn’t collected flows directly into the wetlands behind us via six subterranean conduits.  As a result, the vernal pools that were dry in April last year are still filled with water at the end of June.  It is a sign that we are, at long last, beginning to replenish our watersheds.

Diverters allow us to
switch from filling barrels
to directing water into
the wetlands behind us.
A return to more normal rainfall has an unexpected benefit as well as a drawback.  The benefit, as reported by the University of Massachusetts Extension Service, is that all this moisture has activated the maimaiga fungus.  Why is that important?  The fungus is deadly to gypsy moth caterpillars.  Caterpillars die before they can lay the eggs that would otherwise wreak havoc next spring on our oaks.  It means the devastation of the past two years will likely abate.  The downside to the precipitation is that the woolly adelgids are hatching.  They primarily attack hemlocks and the drought kept eggs from hatching.

June 2017 yielded more than five inches of rain in Boston; more than an inch above the long-term average.  We’ve had 26 inches of precipitation so far this year – four inches above normal.  This week’s Drought Monitor map shows no area in New England as being even abnormally dry.  Last year, all of New England except extreme northern Maine was in at least a ‘Stage 0’ drought and much of the region was in a moderate drought (which would become ‘extreme’ by summer’s end).

Our elaborate system of
drains is also designed to
look attractive.
We learned to cope last year.  An absolute lawn watering ban in our town (Medfield) reduced summer water usage to winter levels.  Lawns went brown.  Then, to the surprise of many homeowners, cooler weather in September and October, coupled with a little rain, caused those same lawns to green up.
The question is whether we learned any lasting lessons from the summers of 2015 and 2016.  I fear the answer is that we did not.  Driving around town this week I saw automatic lawn sprinkler systems pouring water onto bright green lawns in mid-day.  I saw other sprinkler systems operating in the rain. 

Rain is not guaranteed.  It is a gift to be cherished.  Being stewards of the land means also being stewards of our finite water resources.  It’s an imperative that ought to be obvious. All those lawn sprinklers tell me that, sadly, lessons have been too easily and quickly forgotten.

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