title: Matplotlib BoxPlot Labels and Title
body: <p>Thank you in advance for your help!</p>
  <p><strong>I am trying to create a boxplot in matplotlib and I get an error when trying to add the labels.
  This is the code that pulls an error:</strong></p>
  <pre><code>df_selected_station_D.boxplot(column='20 cm', by='Month',figsize=(15,5),grid=True, xlabel = 'x data');
  </code></pre>
  <p><strong>This is the error it causes:</strong></p>
  <pre><code>TypeError: boxplot() got an unexpected keyword argument 'xlabel'
  </code></pre>
  <p><strong>What does this error mean and why am I getting it? (Complete code and images below)</strong></p>
  <pre><code>import pandas as pd
  import numpy as np
  import matplotlib.pyplot as plt
  import warnings
  warnings.filterwarnings('ignore')
  
  
  raw_data = pd.read_csv('all-deep-soil-temperatures.csv', index_col=1, parse_dates=True)
  df_all_stations = raw_data.copy()
  
  df_selected_station = df_all_stations[df_all_stations['Station'] == 'Minot']
  df_selected_station.fillna(method = 'ffill', inplace=True);
  df_selected_station_D=df_selected_station.resample(rule='D').mean()
  df_selected_station_D['Day'] = df_selected_station_D.index.dayofyear
  
  mean=df_selected_station_D.groupby(by='Day').mean()
  mean['Day']=mean.index
  
  
  df_selected_station_D['Month'] = df_selected_station_D.index.month
  df_selected_station_D.head()
  </code></pre>
  <p><a href="https://i.stack.imgur.com/QQxqH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QQxqH.png" alt="enter image description here" /></a></p>
  <pre><code>df_selected_station_D.boxplot(column='20 cm', by='Month',figsize=(15,5),grid=True);
  </code></pre>
  <p><a href="https://i.stack.imgur.com/13Oo0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/13Oo0.png" alt="enter image description here" /></a></p>