Does anyone have suggestions for removing pine needles from a large bed of lava rock (aside from hand-picking, that is)?
Lori, you might try a leaf blower, or if you don't have access to one maybe take a shovel and scoop everything up and spread out on the driveway then seperate using a broom then replace the lava rock with the shovel. Good luck.
Another trick might be to use a propane like torch or pour kerosene over the stones. Lava is quite resistant to heat and pine needles arn't.