9 Vegetables That Thrive in 5-Gallon Buckets Small-Space Superstars 勒 Best Bucket-Friendly Veggies: Zucchini High yield with minimal effort. Green Onions Continuous harvest from one planting. Bush Beans Compact, productive, and easy to grow. Carrots Sweet and crunchy right from your bucket. Radishes Fast-growing, ready in just a few weeks. Spinach Nutrient-packed leafy greens. Lettuce Crisp and refreshing for fresh salads. Cucumbers Train vines up a trellis for best results. Peppers Thrive in warm weather, perfect for containers. Why Buckets Work: Saves space 華 Easy to move for sunlight Great for beginners Minimal weeding required Tip: Use well-draining soil, water consistently, and add stakes or trellises for climbing plants like cucumbers.