Spring “branch-breaker” storms do so much damage to precious trees.

If you grew up on the Front Range, you’re probably familiar with the old adage to “plant out on Mother’s Day.” The idea was, of course, that any chance of a hard frost was past, and delicate warm-weather crops, like tomatoes, cucumbers, peppers and eggplant, would be safe for the summer growing season.

If you’ve lived and gardened in the Denver area over the last twenty years, however, you know the very idea of planting on Mother’s Day is pretty laughable. This year, the holiday occurred as early as it possibly can – on May 8. Between Thursday and Friday last week, the temperatures in some Front Range areas plummeted from the high eighties to the low forties, with heavy, wet snow and overnight lows well below freezing. If you chose to “plant out on Mother’s Day” and your plants weren’t carefully protected or relocated indoors, you’re likely headed back to your friendly local garden center (hi Anne, Dave and team!) to replace your summer vegetables.

Obviously, Denver weather is known to be erratic, and these massive diurnal shifts are one big reason (after overdevelopment, of course) why the Front Range no longer has a commercial fruit industry like we do on the Western Slope. But while Denver was in the grip of a monster late-spring storm, the East Coast was broiling under record high temperatures and excruciating humidity. Locally, our area has seen more than its fair share of severe weather recently, including unseasonal hard freezes that absolutely crushed peach and cherry growers. A certain number of extreme weather events are to be expected, of course, but it is no longer possible to argue that they’re the exception. They’re now the rule.

In less than a decade, Colorado has experienced two “hundred-year weather” events – the devastating 2013 floods and the scorched-earth Marshall Fire this past December. That stunning fire, of course, was precipitated by bone-dry conditions and hurricane-force winds – and followed a few hours later by about ten inches of snow. Too late, obviously, to prevent the loss of a thousand homes; the Marshall Fire quickly enthroned itself as the most expensive “natural disaster” in Colorado’s history. Is it even accurate to refer to these disasters as natural, since they’re entirely our fault?

The point is, it is no longer feasible to expect the weather to act the way it’s always acted. It is no longer possible to change the trajectory that we’re on as a population and a planet; there is absolutely no hope of achieving the 1.5 degree warming limit by 2030 and it’s foolhardy to pretend otherwise. All we can do now is adapt to our rapidly changing climate – stop building in wildland-urban interfaces, create a resilient and regionally-adapted agriculture system and learn how to live with the ‘new normal.’ Hundred-year weather events should be expected every ten years, if not more frequently, and we need to ready ourselves for these, instead of acting shocked and horrified and surprised every time they occur. We cannot continue to behave as we’ve behaved in the past and expect that the weather will accommodate us. Also, we should really, really stop irrigating the desert to raise cattle and lettuce (looking at you, Arizona) and we should outlaw Kentucky bluegrass – actually, lawns in general – in the American West. (We can’t even hide bodies in Lake Mead any longer!) The sooner we accept our harsh new reality and learn to live with it, the better off we’ll all be.

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