March 10 Column: Raised Bed Gardening
If you’ve followed me for long, you know I am absolutely crazy about raised bed gardening! There are so many great attributes of this method of gardening, that I just had to share them in my column. You can read it in today’s edition of The Spokesman-Review: Raised beds offer bountiful benefits. Or you can read my column below.
Column: Raised beds offer bountiful benefits
I don’t want to sound set in my ways but I’ve been gardening in raised beds for almost 40 years. I don’t intend to change to another method any time soon.
It began innocently enough with a magazine article showing the most beautiful and productive vegetable garden I’d ever seen. It belonged to Peter Chan, who lived near Portland at the time. I instantly knew this method would be ideal for our garden.
Chan created his raised beds by mounding soil. My husband and I discovered the soil eroded over the course of a growing season and required re-mounding each year. Framing our beds with untreated wood was the perfect solution. Our garden now holds 26 beds which overflow with healthy produce every year.
One of the key features of this method is that the soil stays loose all season long. That’s because you walk around the beds, rather than on the soil right next to the plants. Because of this, root crops such as carrots, parsnips and potatoes grow especially well.
Another plus of raised beds is that the soil warms up earlier in the spring. How is that possible? The sun hits the top and sides of each bed. That often allows a gardener to plant a bit earlier.
I frequently recommend raised beds to gardeners who have poorly-draining soil or too many rocks for in-ground planting. All they have to do is build a bed, fill it with a mix of soil and organic amendments such as compost and shredded leaves. Problem solved.
To cut down on weeding, we covered the paths between the beds with weed-block fabric and a few inches of bark mulch. That way, we only have to weed the tops of the beds, which is a tremendous time-saver.
Most of our beds are 3 feet wide by 8 feet long, but there are a few 16-feet-long beds as well.
While the length isn’t so important, the beds shouldn’t be so wide that a gardener can’t tend them without having to kneel or stand on the soil. Don’t make them any wider than 4 feet.
I think the best building material for the beds is untreated lumber: pine, fir, larch, cedar or redwood. That’s because chemicals used to treat wood might leach into the soil. Our untreated beds last over 10 years. We use 2-inch-thick boards since they are sturdy and less likely to warp. We also choose 3-inch-long decking screws to fasten the end boards to the sides.
The most efficient watering methods involve either drip irrigation systems or soaker hoses. They deliver water to the base of the plants where the roots can easily take it up. Avoid overhead watering since the amount of evaporation that takes place wastes water.
What I most love about raised beds is that it’s possible to intensively plant them. In turn, you get a higher yield in a smaller space. As you plan your garden for this season, consider switching to this efficient method. You’ll be hooked before you know it.
Event: Raised Bed Gardening Workshop
When: Saturday, March 16, from 9 a.m. to noon.
Where: Spokane County Extension, 222 N. Havana St.
Details: Garden columnist Susan Mulvihill will share the benefits of gardening in raised beds, the best materials to use, and the specifics on growing vegetables in them. Cost: $15. Register online at extension.wsu.edu/spokane/event/raised-bed-gardening/ or call (509) 477-2195.
This week’s video: Seed-starting 101
I had fully intended to make that today’s video topic but you can’t even see my garden at this point. (heavy sigh) So instead, this week’s video is on a very important topic that I had wanted to cover anyway: Seed-Starting 101. Here it is: