It is observed that planets in a earthy sign promotes wealth. Earthy signs are Taurus, Virgo and Capricorn. To derive the best results out of the earthy signs one must have any one of the following combinations as discussed in Jataka Parijata,

1. Vargottama ascendant

2. Vesi yoga forming in and from the sun.

3. Benefics in Kendra and Trikona from lagna and moon.

4. Planets in own house, exaltation or mool Trikona in mutual kendras.

5. Vasumati, mahabhgya or Panch Mahapursha yoga.

6. Strong 9th house, 9th lord or exalted planet in 9th house.