Best Trees To Grow In Pots BBC Gardeners World Magazine Red Oak Tree Seeds 5 Seeds Bonsai Variety Quercus rubra, Highly Jayme Garden Amazon.com : JOIKIT 17 Inches Black Plastic Planter Box, 6 Packs, Good Drainage, Indoor Outdoor Usage, for Garden, Windowsill, Patio, Balcony : Patio, Lawn & Garden Dirt Pot Flexible Portable Planter, Grey, 10 gal, with handles Bird's Nest Fern Flores Mantilla: Floral Design & Gifts Five gallons is all most vegetables need to thrive. 1. Peppers: Prefer black containers. 2. Onions: Grow multiple in one bucket. 3. Tomatoes: Use deep pots for a juicy harvest. 4.