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Basil Growing Season for Louisiana

The NOAA National Climatic Data Center provides information to the public about spring and fall frost dates in the United States and the length of the expected growing season for each area. These statistics are calculated using data collected from 1971 to 2000, across 4300 weather stations located in every part of the country.

While informative, the statistics that NOAA provides is overwhelming. So, we took the liberty of extracting the most basic information that we feel would be useful to someone interested in growing basil outdoors.

The table below lists the date after which it should be safe to plant basil outdoors in each area of the state. This information is based on NOAA’s calculations for a 10% probability of temperatures falling below 36 degrees Fahrenheit. This means that, on average, there is only a 10% chance that you will see frost after this date. Also listed is the estimated length of the growing season. This is how many days you can expect to have before the risk of frost is greater than 10%.

Please use this information at your own risk. You must take into consideration many varying factors, for example, micro-climates or the presence of valleys and bodies of water, to determine your actual growing season.

StateCountyLast Frost DateLength of Growing Season
LAAcadia3/28226
LAAllen4/07214
LAAscension3/24238
LAAssumption3/24238
LAAvoyelles4/06213
LABeauregard4/18197
LACaddo4/17197
LACalcasieu3/29228
LACameron3/25238
LAClaiborne4/16194
LADe Soto4/15195
LAEast Baton Rouge4/05212
LAEast Carroll4/06211
LAFranklin4/12192
LAIberia3/27231
LAIberville3/26234
LAJefferson3/27235
LAJefferson Davis3/29226
LALa Salle4/17182
LALafayette3/27230
LALafourche3/24244
LALincoln4/17189
LAMadison4/13198
LAMorehouse4/14195
LANatchitoches4/09209
LAOrleans3/15264
LAOuachita4/09200
LAPlaquemines3/26234
LAPointe Coupee4/05219
LARapides4/08211
LASabine4/19179
LASt. Bernard3/27244
LASt. John The Baptist3/27234
LASt. Landry4/07211
LASt. Mary3/24252
LASt. Tammany4/05216
LATangipahoa4/13193
LATensas4/10197
LATerrebonne3/24236
LAVernon4/19192
LAWashington4/09207
LAWebster4/15191
LAWinn4/17181