You shouldn’t use olive oil to fertilize plants. Oil displaces water and can draw rodents and additional pests to the soil. It can be used in compost, but only in small amounts.
About the Author
Diane Dilov-Schultheis has been writing professionally since 2000. She is a food and travel writer who also specializes in gaming, satellites, RV repair, gardening, finances and electronics. She is a member of the Society of Professional Journalists and has been published online at the Travel Channel and Intel.