Watering

Pick up any plant biology book, and they consistently list the three macro nutrients all plants need as N, P, and K, the chemical symbols for Nitrogen, Potassium, and Phosphorus. But really, what we share with plants is a need for ‘macro’ macro nutrients, something so profoundly necessary that the books don’t even feel the need to list them, and they form the backbone of all life. We’re talking about C, H, and O, or Carbon, Hydrogen, and Oxygen.

The carbon and the oxygen are easy, the plants are getting that in the air we breathe. It’s the Hydrogen that’s been stressing me out lately. Plants obtain it solely from water, through photosynthesis. I always remember my snide remarks in the retail garden center world, when a customer would ask me what kind of fertilizer to buy with their new purchases. For the most part, I’d tell them the single greatest thing they could do would be to water.

How much? It’s a good question with no real definitive answer. I remember from who knows where that gardens in the northeast need about 1/2″ of rain a week in the growing season, and an article on strawberry production I found says about the same (actually .63″). Trees need quite a bit more, though, as they have much more extensive roots throughout the soil horizon. Plan on 2″ of rain a week. I found a handy online calculator to do the math, but here’s a quick answer. A newly planted tree with about a 2″ trunk, should have a 5′ x 5′ zone watered around it, so that’s about 30 gallons, pretending to be a 2″ rain.

Sounds a little high, but the wild and woolly world of plants is never easy.  Last year we were averaging 4″ of rain a month, and we didn’t have to do any supplemental watering. On cloudy days plants don’t transpire, or lose water, at as great a clip, so maybe last year it was fine.

Or not. We’re running around like chickens with our heads cut off right now, watering every tree we’ve planted for the last 3 years. (that’s a lot) All of our recently planted trees are showing drought stress, and I’m wondering if I hadn’t watered enough in the last 2 wet years to well establish the trees. When watering, it is best to water a lot all at once, so that the roots have ample moisture and can grow long and deep. Too little water, and the tree keeps its roots near the surface, where the water is, and this makes it less drought resistant in the long run.

Gator Bags for Watering

We water all trees with 40-50 gallons of water about every 2 weeks. We use two gator bags zipped together, and they drain over the course of about a day. We hand water any tree we missed, and then gator bag it. In this heat and drought, I’d like to water weekly, but I’ve been checking the ground around the trees, and I think we’re keeping up.

Another good trick I learned once when hand watering is to watch the ground as it absorbs water from the hose. I think this is the one of the Eliot Coleman gardening books, but I loaned my copy out and now it’s gone. Once the ground starts to get saturated, the top gets glossy. Take the hose off that spot, and the glossiness will disappear. If you can count to 3 before the glossiness is gone, the ground is moist enough.

Drought stress symptoms in Birch

identifying drought stress in plants can be tricky, especially in herbaceous plants like annuals and perennials. Woody plants are easier. The inner leaves of the tree turn yellow and fall off. I find this remarkable. It isn’t like trees have brains, but here they are smart enough to drop the inner, less efficient leaves, to conserve its precious water for the maximally producing outer leaves. By the time your plants are showing symptoms of drought, obviously much damage is done. Plants are pretty hardy, so even with serious problems the tree will probably be fine.

The Juice Bar at Crossroads Cafe

I make no excuses for not blogging.

I’m not one of those super-organized, or super-marketeer landscapers who spends the slow winter writing blog posts to store them for slow release all summer. No, we spent the snowless winter busily pruning more trees in one winter than the previous 3, and my dream list of blog posts keeps growing almost, but not quite, as fast as the weeds in the garden.

So what’s my first blog post of the dog days? Guess what, it’s not even about plants, but food.

Some of you probably know my wonderfully patient wife, Nancy, and if not go introduce yourself. She summers as the supervisor of the Juice Bar, which, lacking students, is run by the Grille staff, where she slums in the winter. They’re calling it Crossroads, probably because of the large sign above the back, but the menu is all Nancy. Last year was the year of the Panini, which they’ve kept (try the Sierra Smoked Turkey one), but this year crepes are the thing.

We had crepe weekend here at home a month or two ago, where she and the children practiced all weekend. (Oh, the sacrifices I make for the Middlebury community; I didn’t eat until Tuesday)  She’s got it down now, and has taught Sydney and Kate (Kate from Wilson Cafe, similarly slumming in McCullough for the summer). And you owe it to yourself to go get one.

Like the Goliath, with flank steak, goat cheese, carmelized onions, and roasted red pepper. Or the Fernicky, (don’t get the name? Ask Miguel), with sausage, ricotta, and apple. But, believe it or not, even this landscaper thinks the best one may be the vegetarian option, with a coconut tumeric lime sauce. I run and hide from Indian food (an unfortunate experience at a local restaurant after a Sunday brunch), but this crepe may be the greatest thing since skinny pancakes came along.

So go for the crepes, but stay for the Chocolate Soup. Really. We practiced that recipe at home too, but I was training for the Middlebury Half Marathon, so it was’t a sacrifice, but needed fuel.

Or so I said.