When to plant tulips, daffodils and wildflower seeds, from night temperatures and frost dates for your ZIP code.
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Most native wildflower seed does best sown in late fall or winter. Dormant-sowing dates for 24 US cities from NOAA hard-freeze normals, two common rules tested, and published calendars from Minnesota to Texas and Florida.
Plant daffodils from when fall nights reach 50°F until your first frost, before the 28°F hard freeze. Dates for 24 cities, checked against nine extension calendars, plus Southern types that need no chilling.
Plant tulips as fall nights cool from 50°F to 40°F, finishing around your first frost. Dates for 24 cities, checked against 16 extension calendars, plus warm-winter chilling.
Get a short email when it’s time to overseed, start seeds, open the pool or service your furnace — timed to your climate.
