One unusual item you'll always find in Martha's garden? Horseradish. But there's a very specific way you should plant this root vegetable in your garden. Follow along as Martha explains how she Cacti and Succulents: Help white spots getting bad on agaves, 1 by Calif_Sue American Giant Sunflower Seed 4 grams Growing Lemon Trees from Seeds Tall Square Planter Bloem Living Durable & Lightweight