When to plant / Pennsylvania
When to plant spinach in Pennsylvania
The page gives dates for much of Pennsylvania, not for named regions. Spinach is the crop placed in a named month, April, and that month is read as April 1 through April 30. Phrases such as “early April,” “mid-April to late May,” and “late May to early June” stay phrases, because the page does not give them a day. Crops the page times only as “after the danger of frost has passed” or “early spring,” with no month, are left off these windows.
Source: Penn State Extension, Starting Your Summer Vegetable Garden—Seeds or Transplants?, retrieved 2026-10-10.
How this page reads that source: Spinach seeds should be planted outdoors in April since this vegetable needs to be harvested before it bolts (goes to seed) in the summer heat.
Statewide
- April (April 1–April 30). The guide gives months, so the dated range uses the first day through the last day of those months.
City frost pages in Pennsylvania are listed on Pennsylvania.