Bunching onions you can grow in a window box. Cut-and-come-again.
Suitability: 100/100 · Excellent choice
Sun requirement: 4–8 hours
Space required: ~0.1 sq ft / plant
Difficulty: Very Easy
Plant Mar–Oct · Harvest May–Jul
Expected harvest: 2–5 lb
Grocery equivalent: $5–$14
Estimated garden cost: $15–$33
Potential savings: $-28–$-1/year