Indoor Gardening: Greenhouses, Grow Lights & Year-Round Growing

Cold climate? No yard? Indoor gardening lets you grow vegetables, herbs, and flowers 365 days a year. From simple shelves to full greenhouses, there’s a setup for every space and budget.

Greenhouse Tiers

• Mini/Lean-to: 3–6 ft, attaches to wall, fits balcony/small yard. $100–$500.
• Hobby/Standalone: 6×8 ft to 10×20 ft, polycarbonate or glass, ventilation, heating. $1,000–$10,000+.
• Commercial/High-end: Automated climate control, hydroponics-ready. $20,000+.

No Greenhouse? No Problem.

• Grow tents: Reflective interior, light-proof, ventilation ports. 2×2 ft to 10×10 ft.
• Shelves + LED grow lights: 4-ft T5 or full-spectrum LED bars. 12–18" above plants. Timer = 14–16 hrs.
• Windowsill + supplemental light: South window + clip-on grow light for herbs/microgreens.

What Thrives Indoors

• Leafy greens: Lettuce, spinach, kale, arugula (fast, shallow roots).
• Herbs: Basil, cilantro, parsley, mint, chives.
• Microgreens: 7–14 days, nutrient-dense, minimal space.
• Cherry tomatoes / peppers: Compact varieties (Tiny Tim, Patio), need 16+ hrs light, pollination assist.
• Strawberries: Everbearing in hanging baskets.

Keys to Success

• Airflow (prevents mold, strengthens stems).
• Consistent moisture (not soggy).
• Pollination (shake plants, small brush, or fan).
• Pest scouting (aphids, spider mites, whiteflies).

Resources

Local extension office, university ag sites, r/IndoorGarden, r/Hydroponics. Start small, learn, expand.