When to plant green beans in Maryland
Sow outdoors in Baltimore
Mar 31–Apr 21
Across Maryland the window opens between March 31 and May 1. Find your city below; the dates follow each town's own average last frost.
- Sow outdoors, Baltimore
- Mar 31–Apr 21
- Last sowing for a harvest
- Sep 8
- Last frost, Baltimore
- Mar 24
Sow outdoors 1–4 weeks after the last frost. Bush beans ripen all at once, so sow a new row every two to three weeks.
Green beans planting dates by city
Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BaltimoreMar 31–Apr 21
ColumbiaApr 12–May 3
FrederickApr 9–Apr 30
GermantownApr 21–May 12
WaldorfApr 24–May 15
Silver SpringApr 17–May 8
Ellicott CityApr 9–Apr 30
Glen BurnieApr 17–May 8
GaithersburgApr 8–Apr 29
RockvilleApr 8–Apr 29
BethesdaApr 16–May 7
DundalkMar 31–Apr 21
BowieApr 29–May 20
SevernApr 17–May 8
Bel Air SouthApr 17–May 8
TowsonApr 9–Apr 30
Aspen HillApr 8–Apr 29
WheatonApr 8–Apr 29
North BethesdaApr 8–Apr 29
PotomacApr 8–Apr 29
OdentonApr 17–May 8
HagerstownApr 18–May 9
CatonsvilleMar 31–Apr 21
EssexMar 31–Apr 21
AnnapolisApr 3–Apr 24
Severna ParkApr 3–Apr 24
ClintonApr 10–May 1
OlneyApr 8–Apr 29
RandallstownApr 9–Apr 30
Owings MillsApr 9–Apr 30
All 68 cities
| City | Sow outdoors | Last frost |
|---|---|---|
| Baltimore | Mar 31 to Apr 21 | Mar 24 |
| Columbia | Apr 12 to May 3 | Apr 5 |
| Frederick | Apr 9 to Apr 30 | Apr 2 |
| Germantown | Apr 21 to May 12 | Apr 14 |
| Waldorf | Apr 24 to May 15 | Apr 17 |
| Silver Spring | Apr 17 to May 8 | Apr 10 |
| Ellicott City | Apr 9 to Apr 30 | Apr 2 |
| Glen Burnie | Apr 17 to May 8 | Apr 10 |
| Gaithersburg | Apr 8 to Apr 29 | Apr 1 |
| Rockville | Apr 8 to Apr 29 | Apr 1 |
| Bethesda | Apr 16 to May 7 | Apr 9 |
| Dundalk | Mar 31 to Apr 21 | Mar 24 |
| Bowie | Apr 29 to May 20 | Apr 22 |
| Severn | Apr 17 to May 8 | Apr 10 |
| Bel Air South | Apr 17 to May 8 | Apr 10 |
| Towson | Apr 9 to Apr 30 | Apr 2 |
| Aspen Hill | Apr 8 to Apr 29 | Apr 1 |
| Wheaton | Apr 8 to Apr 29 | Apr 1 |
| North Bethesda | Apr 8 to Apr 29 | Apr 1 |
| Potomac | Apr 8 to Apr 29 | Apr 1 |
| Odenton | Apr 17 to May 8 | Apr 10 |
| Hagerstown | Apr 18 to May 9 | Apr 11 |
| Catonsville | Mar 31 to Apr 21 | Mar 24 |
| Essex | Mar 31 to Apr 21 | Mar 24 |
| Annapolis | Apr 3 to Apr 24 | Mar 27 |
| Severna Park | Apr 3 to Apr 24 | Mar 27 |
| Clinton | Apr 10 to May 1 | Apr 3 |
| Olney | Apr 8 to Apr 29 | Apr 1 |
| Randallstown | Apr 9 to Apr 30 | Apr 2 |
| Owings Mills | Apr 9 to Apr 30 | Apr 2 |
| College Park | Apr 17 to May 8 | Apr 10 |
| Chillum | Apr 5 to Apr 26 | Mar 29 |
| Pikesville | Apr 9 to Apr 30 | Apr 2 |
| Montgomery Village | Apr 21 to May 12 | Apr 14 |
| Salisbury | Apr 10 to May 1 | Apr 3 |
| Pasadena | Apr 17 to May 8 | Apr 10 |
| Milford Mill | Apr 9 to Apr 30 | Apr 2 |
| Middle River | Mar 31 to Apr 21 | Mar 24 |
| Bel Air North | Apr 17 to May 8 | Apr 10 |
| Eldersburg | Apr 9 to Apr 30 | Apr 2 |
| Parkville | Apr 9 to Apr 30 | Apr 2 |
| Laurel | Apr 12 to May 3 | Apr 5 |
| Crofton | Apr 29 to May 20 | Apr 22 |
| Clarksburg | Apr 21 to May 12 | Apr 14 |
| Perry Hall | Apr 9 to Apr 30 | Apr 2 |
| Carney | Apr 9 to Apr 30 | Apr 2 |
| Reisterstown | Apr 9 to Apr 30 | Apr 2 |
| South Laurel | Apr 12 to May 3 | Apr 5 |
| Lochearn | Apr 9 to Apr 30 | Apr 2 |
| Ilchester | Apr 17 to May 8 | Apr 10 |
| Fairland | Apr 12 to May 3 | Apr 5 |
| Elkridge | Apr 17 to May 8 | Apr 10 |
| Ballenger Creek | Apr 9 to Apr 30 | Apr 2 |
| Fort Washington | Apr 10 to May 1 | Apr 3 |
| North Laurel | Apr 12 to May 3 | Apr 5 |
| Edgewood | Apr 17 to May 8 | Apr 10 |
| Greenbelt | Apr 17 to May 8 | Apr 10 |
| Suitland | Apr 5 to Apr 26 | Mar 29 |
| Landover | Apr 5 to Apr 26 | Mar 29 |
| North Potomac | Apr 8 to Apr 29 | Apr 1 |
| Arnold | Apr 3 to Apr 24 | Mar 27 |
| Cockeysville | Apr 9 to Apr 30 | Apr 2 |
| Camp Springs | Apr 10 to May 1 | Apr 3 |
| Langley Park | Apr 17 to May 8 | Apr 10 |
| Hyattsville | Apr 5 to Apr 26 | Mar 29 |
| Arbutus | Mar 31 to Apr 21 | Mar 24 |
| Rosedale | Mar 31 to Apr 21 | Mar 24 |
| Westminster | May 1 to May 22 | Apr 24 |
Questions
When should I plant green beans in Maryland?
In Baltimore, sow outdoors from March 31 to April 21. Across Maryland the window opens between March 31 and May 1, depending on the local last frost.
How is this date worked out?
Sow outdoors 1–4 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.
More for Maryland
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Green beans in other states
- Alabama
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