Raised Beds in the Rain: A Beginner's Garden Plan

Raised beds are the simplest answer to the two things that make gardening here tricky: wet soil and a short stretch of real warmth. If you are starting from scratch in the Portland metro, a few boxes filled with good soil will get you further than fighting the ground you already have.

Why raised beds make sense in this climate

Our springs are wet and our native soil is often heavy clay. A raised bed lifts roots above the standing water, warms up earlier in the season, and gives you complete control over what your plants are actually growing in. It is also easier on your back, which matters more each year.

Pick a spot and a size

Choose the sunniest, most level corner of the yard you can find, ideally facing south. Keep beds about four feet wide so you can reach the middle from either side, and as long as you like. If the yard slopes, run the beds across the slope rather than down it. Near the rivers in Vancouver and Camas, a little extra height helps with drainage.

Build it and fill it

Untreated fir or cedar works well and holds up in our damp air. Line the bottom with cardboard to smother weeds, then fill with a mix of topsoil and compost rather than digging soil from elsewhere in the yard. Leave the base open to the ground so worms and drainage can do their work.

What to plant your first year

Start with forgiving crops: lettuce, kale, chard, peas and radishes in spring, then zucchini, beans and a few tomatoes once the soil is warm. Keep the first season simple, and you will learn how your particular yard handles sun and water before you invest in anything fussy.

Living with rain and slugs

Weeding is easier in a raised bed, but slugs love the damp. Handpick them in the evening, keep mulch away from tender stems, and water in the morning so foliage has time to dry. A simple hoop cover or row cloth will protect young starts through a cold snap.

Christian Ching is the local agent to ask about the area, the lots and how a yard here drains before you commit to a layout.