Indoor Year‑Round Vegetables in a Canadian Apartment: Realistic Limits

Canadian bachelor apartment: wants tomatoes, cucumbers, lettuce, peppers, onions year‑round. Has space, heat, some summer light. Pays electric, so 24/7 lights not possible. Worried about 5‑min winter window opening.

Reality Check

• Tomatoes, peppers, cucumbers: Need 14‑16 hrs intense light (400‑600 µmol/m²/s) + warm temps to fruit. Window light + affordable LEDs won't suffice. Fruit set unlikely.
• Lettuce, spinach, microgreens, herbs: Do well under modest lights (T5/T8 fluorescent or 30‑50W LED) 12‑14 hrs/day.
• Onions/garlic: Need long days + cool temps for bulbing—hard indoors.

Best Bet: "Mesclun" Cut‑and‑Come‑Again Lettuce

• Shallow tray, 2‑3" soil.
• Dense seeding.
• Harvest at 3‑4" (scissors), regrows 2‑3x.
• 12‑hr light cycle, cool (60‑65°F).

Winter Air Exchange

5 minutes of cold air won't kill plants if they're not in the direct draft. But avoid freezing temps near foliage.

Conclusion

Focus on leafy greens & herbs. Fruiting vegetables need a greenhouse or high‑end grow tent with serious lighting—costly for electricity‑payer.