Santa Maria, more commonly known as Planck, is a landrace strain originating in the rainforests of the Amazon. Today's version of the strain has been repeatedly crossed with Mexican Haze and Silver Pearl to stabilize its genetics. Both Pro Seeds and No Mercy have versions of the cultivar on the market.

The top reported aromas of Santa Maria are floral, citrus, and earth. It is said to taste like lavender, soil, and oranges.

No Mercy's version of Santa Maria has won over a dozen cannabis awards from 2003-2008.