When to plant potato in Baltimore
Potato is cold-hardy, so every date keys off Baltimore's frost dates of Mar 21.
Step 1 · Sow
Direct sow outdoors
Mar 18 – Apr 8
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 27 – Jul 16
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
Baltimore's 249-day season leaves this much room.
Potato on Baltimore's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
HARVEST
MAR 21
NOV 27
Common questions
When can I sow potato outdoors in Baltimore?
Direct-sow around mid March (Mar 18–Apr 8) in Baltimore, based on its local frost dates. Confidence 81%.
When will potato be ready to harvest in Baltimore?
Expect to harvest from around late May (May 27–Jul 16) in Baltimore, based on its local frost dates. Confidence 76%.
How long is the growing season in Baltimore?
Baltimore has roughly 249 frost-free days, which is enough time to grow potato to maturity outdoors.
The rule of thumb
Sow potato as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Baltimore's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.