Pennsylvania Planting Calendar: When to Sow and Plant, Frost Dates Included
Shows Pennsylvania’s frost-free window near Philadelphia from NOAA data, plus how to adjust the dates for colder regions using soil temperature and elevation.
Home & garden, state by state
Shows Pennsylvania’s frost-free window near Philadelphia from NOAA data, plus how to adjust the dates for colder regions using soil temperature and elevation.
Philadelphia sits at 39.87 degrees north and gets 14 hours and 50 minutes of daylight on the longest day of the year.
Pennsylvania flowers need to survive winter lows near 26F and dozens of 90-degree days, and native perennials and a well-planned border handle both extremes best.
Yes, Pennsylvania gets cold enough for nearly every classic spring bulb — but the state runs from USDA zone 5a in the northern tier to 7b along the…
West of the Cascades, Oregon runs on a simple summer script: warm, dry weeks strung together, water arriving from a hose instead of the sky.
Oregon’s official state soil is the Jory series, a deep red clay loam from the Willamette Valley’s old volcanic hillsides.
Portland sits at 45.59 degrees north, and on the longest day of the year the sun stays up for 15 hours and 30 minutes.
A look at which flowers handle Oregon’s mild winters and cool summers well, from native pollinator plants to perennials worth planting.
Portland’s cold season is deep enough to satisfy nearly every spring bulb on the market, but the calendar for getting them in the ground runs on a…
Ontario’s climate rarely pushes gardens into true heat stress, so the real skill is matching water to soil type and to what’s actually dry at root depth…