Varick 20 Ceramic Self Watering Pot White Dolomite Wild Ginger Seeds Its my first time growing brussel sprouts! But in my search for companion plants, I was met with a very short list. So heres the few things Ive planted in the brussel bed: , Onions, Marigolds , Litterbox Plant Pot Litter Tray Clay Planter Hidden Cat Litter Box 6" Flower Bunches Applique Planter, Ivory Handpainted Planters Wing on Wo & Co.