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Homegrown: Alternatives in the food garden

Unless this final week of April brings a chilling frost, sowing seeds and setting out plants will pick up speed in the days ahead as we try to produce food for our tables despite the need to cut back on watering.

Tales of dry-farming potatoes and tomatoes are legend in some families as we recall earlier days when we lived through droughts. Now we're faced with finding other crops that will succeed with fewer resources. It may be time to try different foods than we usually grow.

If you're limiting your garden to low-water-requiring crops, you likely have some open space where thirstier plants would grow in other years. This leaves space for low-water herbs and a few crops that are more often sown in cooler spring and fall months rather than for summer harvest.

Although we're nearing the end of the cool season, it does carry on quite a bit longer along the north coast than in hotter climates.

In general, plant more deep- and thick-rooted crops that take less frequent watering and in lesser amounts than shallow-rooted leafy types with thin, fibrous roots that draw only on surface moisture. If you still want to grow greens, plant kale and chard. Though not considered drought tolerant, both perform fairly well with less water than lettuce and spinach demand.

Not all root crops, though, thrive in drought. Beets and radishes become woody with too little moisture; carrots will split with erratic watering.

If you have perennial artichokes in your garden, you can reduce water use by allowing the soil to dry after harvest. Leaves and stems will die back, but roots will lie dormant until rains return in fall and winter, when they'll become active and top growth reappears.

Asparagus is similar, though ferny stems and leaves depend on moist soil until mid to late summer when they turn yellow, orange, then brown as roots enter dormancy and regular irrigation can be eliminated.

Kohlrabi: My German grandfather grew and sold kohlrabi in Chicago's ethnic neighborhoods along with truckloads of turnips and parsnips, cabbages and cauliflower. But not all generations developed a taste for old-world root and “cole” crops.

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