Skip to main content

Grass Valley, CA planting calendar

When to plant vegetables in Grass Valley, CA (USDA hardiness zone 9a). Typical last spring frost around Apr 10, 2026 17 days year to year), first fall frost around Nov 13, 202614 days).

Playing it safe? Spring frost holds off until about May 1, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Grass Valley calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Grass Valley, CA’s first frost (~Nov 13, 2026) — fastest first.

Month by month in Grass Valley, CA

January

February

March

April

May

August

September

Understand your frost dates

Frost dates are NOAA 1991–2020 climate normals for a representative location in Grass Valley, CA (covering 2 ZIPs); your exact dates depend on your address. Schedules are guidance, not guarantees.