Why does grass gather more dew in the nights than stones and bricks?

Dew is easily formed on the objects, which are good radiators, bad conductors and are n close contact with the surface of the earth. Gasses and leaves are better radiators than stones and bricks. Hence, more dew is formed on grasses and leaves. Moreover, grass and leaves give out water constantly which appears in the form of dew because the air near them is saturated with water vapors.