Popsugar Living Sustainability Uses For Old Coffee Grounds 15 Uses For Old Coffee Grounds 14 June 2018 by Tara Block View On One Page Photo 8 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Healthy carrots Mix coffee grounds with carrot seeds before planting, and it'll make it easier to sow. It'll also repel root maggots, insects, and other pests. Previous Next Start Slideshow SustainabilityBudgetUpcyclingFrugal LivingBudget TipsCoffeeDIY