Garrett Park, MD 20896 Frost Dates
When can you plant in Garrett Park, MD?
Around 04/01 is the usual last spring frost, about 216 days away. The first fall frost typically arrives around 11/06, about 219 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Garrett Park, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Garrett Park before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Garrett Park compares
Garrett Park's growing season runs about 219 days, ranking 13,071 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 231 of 583.
Learn more
the frost range covers how to read the range around Garrett Park's dates instead of trusting one. local microclimates covers what one yard in Garrett Park can differ from the 20896 normal.