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Home & Garden

Cold Rules

Water Freezes. Why Don’t Plants?

(The following is adapted from my book, The Ever Curious Gardener: Using a Little Natural Science for a Much Better Garden, available wherever fine books are sold, and my website.)

Not being able to don gloves and a scarf, or shiver, to keep warm, it’s a wonder that trees and shrubs don’t freeze to death from winter cold. They can’t stomp their limbs or do jumping jacks to get their sap moving and warm up. The sap has no warmth anyway.

Sometimes, of course, plants do succumb to winter cold. But usually that happens to garden and landscape plants pushed to their cold limits, not to native plants in their natural habitats or to well adapted exotic plants. 

Think about it: water freezes at 32 degrees Fahrenheit—not a particularly cold temperature for a winter night—and plants contain an abundance of water. Water is unique among liquids …

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Get Crackin’

Cured!

It’s finally time to get crackin’. Literally. Black walnuts are ready for shelling.This nutty story goes back to early this past autumn as black walnut trees were shedding their nuts. The nuts fall in their husks, the whole package looking like green tennis balls. Lots of people curse the trees for littering lawns, sidewalks, and driveways. We, on the other hand, praise and collect the nuts.

The first step to the present day crackin’ was husking the nuts. The soft, fleshy covering is easy to twist off the enclosed, hard-shelled nut. But we’ve also tried many methods to speed up the process, from spreading the dropped fruit in the driveway and driving over them to pounding them through a 1-1/2” hole in a thick piece of plywood to running them through a suitably modified old-fashioned corn-sheller.

There’s no way around it: Husking black walnuts is a tedious job. And messy, because the …

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Gardening by the Book

An outdoor temperature of 8.2 degrees Fahrenheit this morning highlighted what a great time winter is for NOT gardening, but for reading about gardening. A lot of gardening books, new and old, end up on my bookshelves, and I’d like to note a few favorites new to my shelves last year.

(Disclaimer: I had a new published last year, The Ever Curious Gardener: Using a Little Natural Science for a Much Better Garden — available here. I like the book very much.)

For anyone serious about vegetable growing, Eliot Coleman, gardener extraordinaire, has done it again. The Winter Harvest Handbook builds on his The New Organic Grower (recently re-issued to celebrate its 30th year since publication!) and Four Season Harvest, delving into innovative techniques for growing vegetables more efficiently and year ‘round, with minimum heat inputs even in northern climates.

The “aha” moment for me in reading Eliot’s method’s for year ‘round harvests was that sunlight, even this far north, is not limiting plant …

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