Grid-Down Guide

Off-grid living

Growing Food

Start a productive garden — what to grow for real calories, raised beds, a Northwest planting calendar, season extension and saving seeds.

Photo: Peter Barr, CC BY-SA 2.0

Start small, start now

Gardening is a skill that takes a few seasons to learn — the time to start is before you need it. A 4 × 8 foot raised bed is a great first garden: easy to manage, warms up early, and produces a surprising amount.

Grow what counts

If the goal is food security, focus on crops that give lots of calories or nutrition per square foot and store well:

Crop Why Stores
Potatoes the calorie champion; easy months in a cool, dark place
Winter squash (butternut, hubbard) calories, vitamins 3–6 months at room temperature
Dry beans protein; just let pods dry on the plant years
Onions & garlic flavor, keep well months
Carrots, beets, parsnips sweet, store in the ground or in sand months
Cabbage, kale, collards cold-hardy greens kale survives Spokane frosts into early winter
Tomatoes can them, dry them, sauce them preserved: a year
Corn (flint/dent types) dried corn for cornmeal years
Zucchini, beans, peas, lettuce easy and fast, eat fresh short

Inland Northwest growing calendar

Spokane is roughly USDA zone 6 (colder in the hills and valleys around it) with a short-ish season: the last spring frost averages around early-to-mid May, and the first fall frost around late September to early October (varies a lot by neighborhood and elevation — valleys get frost earlier).

When What
March–April Start tomatoes, peppers and onions indoors. Plant peas, spinach and lettuce outside as soon as the soil can be worked.
Late April Plant potatoes, onion sets, carrots, beets, kale, cabbage starts.
Mid–late May After frost danger: tomatoes, peppers, squash, beans, corn, cucumbers.
July Sow fall carrots, beets, kale and lettuce.
September Harvest and cure squash, potatoes and onions. Plant garlic in October for next summer.

Check with your local WSU or University of Idaho Extension office and Master Gardeners — they know your exact area.

Raised beds and soil

  • Soil is everything. Fill beds with a mix of topsoil and compost. Add compost every year.
  • Water deeply, less often — about 1 inch a week, more in July heat. Drip irrigation on a timer saves water and time. Off-grid, a rain barrel with a gravity drip line works well.
  • Mulch with straw, leaves or grass clippings to hold moisture and block weeds.
  • Rotate crops so the same family isn't in the same spot every year.

Stretch the season

  • Row covers (frost cloth) add several degrees of frost protection.
  • Cold frames — a box with an old window on top — let you grow greens into November and start early in March.
  • A hoop house or greenhouse can add a month or more on each end.

Save your own seeds

Seeds are the ultimate renewable resource. Grow open-pollinated or heirloom varieties (not hybrids, marked "F1") so the seeds grow true.

  • Easiest to save: beans, peas, tomatoes, lettuce, peppers.
  • Harder (they cross-pollinate): squash, corn, cabbage family.
  • Dry seeds well, label with variety and year, and store cool, dry and dark in jars or envelopes. Most stay viable 3–5 years.

Perennials: plant once, harvest for years

Fruit trees (apples, pears, plums and cherries do well here), raspberries, strawberries, blueberries (with acidic soil), asparagus, rhubarb, and herbs. Plant them early — they take years to reach full production.

Sources: WSU Extension — Gardening · USDA Plant Hardiness Zone Map · University of Idaho Extension

Watch & learn

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