If you’ve ever wanted to grow your own food at home but thought it was too expensive or complicated, you’re about to change your mind. With the right mindset and a clever approach, you can grow food indoors cheap — for under $20.
This setup requires no fancy lights, no gardening experience, and no backyard. You just need a small space, basic supplies, and the willingness to experiment. By the end of this guide, you will know exactly how to build a minimalist indoor food garden that feeds you — without draining your wallet.
The Secret to Growing Food Indoors on a Budget
Growing food indoors isn’t just for people with plant walls or smart gardens. With a little strategy and basic materials, you can grow greens, herbs, and even veggies inside your home — and for much less cost than you think.
The key is minimalist gardening, which focuses on:
- Low-cost materials
- Compact layouts
- Multi-purpose containers
- Smart plant choices
Your goal isn’t to create a designer garden. It’s to grow real food, with real simplicity.
Step 1 — Choose the Right Plants
Some crops grow faster, easier, and require less money upfront. These are the best options for a cheap indoor food garden:
- Leafy greens (lettuce, spinach, arugula)
- Fast-growing herbs (cilantro, basil, mint)
- Scallions (regrow from kitchen scraps)
- Radishes (compact and quick to harvest)
- Microgreens (easy, fast, nutrient-rich)
These plants thrive in minimal soil, shallow containers, and indirect light. Perfect for small indoor setups.
Step 2 — Gather Cheap (or Free) Containers
You don’t need ceramic pots or trendy planters. Remember: you’re growing food, not furnishing a patio.
Use what you already have or can get cheap:
- Yogurt containers (poke drainage holes)
- Plastic takeout boxes with lids
- Tin cans (rinsed and dried)
- Mason jars (for water-based herbs)
- Water bottles cut in half
If you can hold soil and it drains — it works.
Step 3 — Get Soil for Cheap or Free
Instead of buying multiple bags, use:
- Potting mix leftovers from a friend or neighbor
- Coconut coir ($3–$5 compressed block)
- Local compost (often free from municipal centers)
- Cut with perlite or rice husk if available
Avoid digging dirt from outside — it’s dense and brings pests indoors.
Step 4 — Create Passive Watering Systems
A cheap, low-maintenance indoor garden means you don’t water every day. Try:
- Recycled trays as catch basins under plants
- Mason jar hydroponics (for herbs like basil or mint)
- Water bottle drip irrigation (poke holes near cap)
- Bottom watering (fill tray, let plants drink what they need)
These methods save time and reduce the chance of overwatering.

Step 5 — Place Near Natural Light
You don’t need $100 grow lights to grow food indoors cheap. A simple setup near a window is enough.
Use:
- East or south-facing windows if possible
- Reflective surfaces like foil-covered cardboard behind plants
- White walls to bounce natural light
- Rotating plant positions weekly to even out growth
If you must use lights, start with an LED desk lamp ($4–$7) placed a few inches above seedlings.
Step 6 — Track Your Success with Replanting
This is where the magic happens: your $20 setup keeps producing if you:
- Regrow scallions from store-bought roots
- Save basil stems to clone new plants
- Harvest lettuce using cut-and-come-again methods
- Keep soil moist but not muddy
That turns your one-time setup into an infinite food source.
Shopping List — Grow Food Indoors Cheap (Under $20)
| Item | Cost Estimate |
|---|---|
| Potting mix or coco coir | $4–$7 |
| Used containers | Free |
| Seeds or scraps | Free–$3 |
| Spray bottle / jar | Free–$1 |
| LED desk lamp (optional) | $4–$7 |
Total: $8–$18
Common Mistakes That Waste Money
- Buying fancy grow kits before learning basics
- Overwatering plants in closed containers
- Growing light-loving plants in dark rooms
- Trying to plant too much in one pot
- Skipping drainage holes
Minimal setups require minimal mistakes. Keep it simple.
Final Thought
Growing food indoors doesn’t require money — it requires creativity. You’re not setting up a greenhouse. You’re building a food-producing system that fits your life, budget, and space.
Start small. Experiment. Learn how each plant behaves. That $20 investment in soil and seeds might grow into hundreds of meals.
Next Minimal Article You Should Read
Want to turn small layouts into high-yield systems?
Recommended next article:
“No Tools? No Problem: Gardening with Household Items”

