Not frost-hardy outdoors in most of the US. Meyer lemons in pots, moved inside, are the realistic path.
Suitability: 55/100 · Possible, but not ideal
Sun requirement: 6–8 hours
Space required: ~36.0 sq ft / plant
Difficulty: Moderate
Plant Mar–May · Harvest Sep–Nov
Expected harvest: 15–60 lb
Grocery equivalent: $37–$149
Estimated garden cost: $38–$69
Potential savings: $-32–$111/year