blissgarden.

When to plant in Poplar Bluff, MO

USDA Zone 7a

Everything below — frost dates, hardiness zone, and what to plant when in Poplar Bluff, Missouri — is derived from the closest NOAA station with complete climate normals.

In zone 7a, Poplar Bluff supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.

Station · POPLAR BLUFF · 1.0 km
Last spring frost
March 29
50% chance · 32°F
First fall frost
November 5
50% chance · 32°F
Growing season
221 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for Poplar BluffA year-band showing 32°F frost risk from January to December for Poplar Bluff: last spring frost around March 29, first fall frost around November 5, about 221 frost-free days between.
Shaded months carry frost risk; the clear span is the average frost-free season.

Frost probability

POPLAR BLUFF · 1991–2020

The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Poplar Bluff’s own odds, recorded at POPLAR BLUFF.

Frost-probability curves for Poplar BluffProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around March 29 and the first fall frost around November 5, giving about 221 frost-free days.
Last spring frostFirst fall frostbold = 32°F · thin = 28°F / 36°F · dot = 50% date · band = 10–90% window
ThresholdSPRING 10%SPRING 50%SPRING 90%FALL 10%FALL 50%FALL 90%
36°FApr 25Apr 9Mar 23Oct 13Oct 26Nov 6
32°FApr 12Mar 29Mar 10Oct 22Nov 5Nov 21
28°FApr 1Mar 16Feb 28Nov 1Nov 15Dec 4

Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.

What to plant now

TODAY · JULY 19
Fall sowopen now
Brussels Sprouts
July 16July 30
Fall sowin 11 days
Rutabaga
July 30August 13
Fall sowin 25 days
Broccoli
August 13August 27
Fall sowin 25 days
Cabbage
August 13August 27
Fall sowin 25 days
Carrot
August 13August 27
Fall sowin 25 days
Cauliflower
August 13August 27
Fall sowin 25 days
Napa Cabbage
August 13September 10

Add these crops to your calendar (.ics) ↓

Full-year planting calendar

Start indoorsTransplantDirect sowFall sow

Each bar is the exact window to take a planting action in Poplar Bluff, drawn to the day from the local frost dates. The dashed line is today.

Nearby weather stations

3 within 21 km · complete 32°F normals

When stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.

POPLAR BLUFF
Primary
1 km · 113 m elevation
SPRING
Mar 29
FALL
Nov 5
POPLAR BLUFF MUNI AP
8 km · 100 m elevation
SPRING
Mar 31
FALL
Oct 31
WAPPAPELLO DAM
21 km · 125 m elevation
SPRING
Apr 2
FALL
Nov 2

Poplar Bluff planting FAQ

When is the last spring frost in Poplar Bluff, MO?

Plan for the last spring frost in Poplar Bluff around March 29 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.

When is the first fall frost in Poplar Bluff, MO?

In Poplar Bluff, the first 32°F freeze of fall lands around November 5 on average. Time your last harvests and any season-extension cover before it.

What hardiness zone is Poplar Bluff in?

Poplar Bluff is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.

How long is the growing season in Poplar Bluff?

Poplar Bluff has about 221 frost-free days — a long growing season — between the average last spring frost (March 29) and first fall frost (November 5).

When should I plant tomatoes in Poplar Bluff?

For Poplar Bluff, sow tomatoes indoors about February 1–February 15 and move the seedlings out around April 5, after the last spring frost.

Planting reminders

Never miss a window in Poplar Bluff

An email when it’s time to start seeds, transplant, and sow — timed to Poplar Bluff’s frost dates. Double opt-in, one-click unsubscribe, no spam.

Nearby cities

8 within reach

Frost dates recorded at POPLAR BLUFF, 1 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.

Cite this page
BlissGarden. "When to Plant in Poplar Bluff, MO — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00236791. Retrieved from https://blissgarden.com/missouri/poplar-bluff.