How do I produce a boxplot in ggplot using a matrix

In R it is easy to turn a matrix into a boxplot

> myMatrix
      [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
 [1,]   27   32   31   28   20   28   10   29   15    29
 [2,]   31   33   20   28   21    9   14   21   34    33
 [3,]   27   33   28   23   26   33   19   11   26    30
 [4,]   33   17   10   31   10   32   10   29   31    28
 [5,]   25   10   29   34   32   33   28   32   32    32
 [6,]   32   19   13   32   26   20    9   26   32    33
 [7,]   33   32   18   26   27   28   29   32   24    25
 [8,]   33   34   32   30   27   31   22   32   33    30
 [9,]   32   34   31   22   17   31   11   27   18    23
[10,]   26   10   30   30   27    4    4    4    4     4

> boxplot(as.data.frame(myMatrix))

How do I accomplish the same thing in ggplot?