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| Photo Credit: © Pennystone Gardens |
| We fit a group of four propagation boxes into one 20-foot-square area next to a service path. (The fifth box is one on the opposite side). |
When we demolished an old deck as part of an entry makeover, we were left with a big pile of 2x6-foot pressure-treated lumber. Once flooring, the 12-foot-long boards were good candidates for a landfill. Instead, we filled them with land.
Now, you may have heard reports that pressurized wood should not be used in food-crop beds, due to the leaching of chromated copper arsenate (CCA) into the soil. (And if you haven’t heard those reports, you know about them now.) Note that my recycled deck lumber is being used for propagating ornamental plants – not edibles – as well as for occasional short-term storage of a purchased plant (pot and all). If you plan to make a propagation (or raised) bed for food-producing plants, do not use pressurized wood. You would do better to go with redwood or cedar, just to be on the safe side. (Food-producing beds are also likely to be set up in more visible locations in the garden and become part of the landscape display, so you’d want nicer materials for that anyway.) But in my case, one look at our old decking was all it took to launch a one-day project with big results. We decided the old floor would be great for building propagation or storage beds – basically giant flats back behind our shed. In addition to growing plants, the beds make terrific temporary housing for plants just in from a garden center but not yet in their final location, or for storing uprooted plants for when our flower beds are being serviced. The boxes are also great for young plants that momentarily have no other place to grow.
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