{ Posts Tagged ‘winter mulch’ }

So is it spring or isn’t it?

I woke up at 3 am this morning to a baby fussing. I rolled over, and thought, “Just a few more hours, little girl, it’s not time yet. If you wake up now, we’ll both be miserable for the rest of the day.”

She settled down on her own, and slept until 7:30, but I found myself repeating similiar words as I looked out my window at breakfast.

“Just a few more weeks, little tree, it’s not time yet. If you wake up now we’ll both be miserable, and you’ll end up dead.” The object of my mother-naturely concern: the European mountain ash I planted in my front garden last year.

The poor dear is so confused. Between the chinooks warming everything up and blowing away his nice chilly blanket of snow, he’s convinced it’s spring. We had a warm spell a few weeks back, and I had to bring snow from the drifts around the yard over to his base. I covered his toes while mumbling (yes, out loud), “Go back to sleep, you silly thing. It’s February.” No matter what the ground-hog may guarantee, I’m an Alberta girl. I’ve seen one too many April snowstorms. Around here, you don’t plant anything tender before the May long weekend any more than you’d give chewing gum to an infant. I’m not that worried about the big old poplars; they’ve seen more winters than I have and will hardly wilt at a late frost. A young tree budding in early March is doomed.

Or is it? Driving around on the highways today, the Canada geese are everywhere and the gophers are running around getting themselves run over. There was frost on the windshield this morning, but my tulips (and the shepherd’s purse) are showing growth. Maybe it is spring, and I’m being overprotective. Maybe I need to let my baby tree out on its own — sink or swim — just like a toddler learning to walk is going to get a few bruises. But I can’t help wanting to coddle him just a little this first year. I know spring and its fickle nature can have too many casualties.

On the top of my priority list for this year: start a shelterbelt to protect my little mountain ash and all his friends (as well as eliminating the snow drifts across the driveway. Hopefully.)

Can you use sawdust as mulch?

While looking through reader comments in articles recently, I saw that someone had commented on Lorraine Flanigan’s article Blanket your garden with a cosy winter mulch. The question was whether or not you can use sawdust to cover your bulb beds. I wasn’t sure how to answer this question, so I consulted Anne Marie. Here is what she had to say:

The sawdust will add another layer of insulation in addition to the soil and protect the bulbs during winter. However it should be removed or amended in the spring. Sawdust is a high carbon source (almost 40%) and when it decomposes in the garden it can divert microorganisms from helping plants obtain valuable nitrogen fertilizer. It can easily cause a nitrogen deficiency when it is breaking down as a result. This can be compensated for by adding additional nitrogen from fertilizer (for the plants) while the sawdust decomposes. The estimated carbon:nitrogen (C:N) ratio for sawdust and wood chips is 500:1 while composted manures are usually in the 17-50:1 range. A C:N ratio of 30:1 is considered ideal. Sawdust can be used in the garden, but after it has been composted. Use it in a compost pile with lots of “greens” to provide the offsetting nitrogen source. The nitrogen sources can be lawn clippings, vegetable kitchen waste, garden refuse but not leaves which are another carbon source. Some gardeners just pile the sawdust in the back corner of their yard and let it sit for a year and then it should be safe to use. So, remove it before it robs too much more nitrogen from the soil, put it in a pile in an out of the way place and add a high nitrogen fertilizer throughout to help with the decomposition process.