When Do I Plant Wild Lupine Seed in Zone 5?

Lupine seeds should be started indoors about six weeks before the last frost date. Lupine seeds started outdoors should be done about one to two weeks before the last frost date. The local county extension agent can provide the last frost date, which varies throughout all the USDA hardiness zones.

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Michael Logan is a writer, editor and web page designer. His professional background includes electrical, computer and test engineering, real estate investment, network engineering and management, programming and remodeling company owner. Logan has been writing professionally since he was first published in Test & Measurement World in 1989.