What a small grow costs
A small indoor cannabis grow costs $300 to $600 for one or two plants. A four-plant setup in a 2x4 foot tent costs $500 to $1,000. Electricity adds $10 to $20 per month at a 150W to 300W draw. Seeds or clones add $10 to $25 per plant.
best low cost grow lights for small setup
These figures cover a tent, light, fan, filter, pots, medium, nutrients, and meters. They do not cover a dedicated room, HVAC work, or licensing.
Equipment and prices
- Grow tent, 2x2 foot: $60 to $120
- Grow tent, 2x4 foot: $100 to $200
- LED light, 100W to 150W: $100 to $180
- LED light, 240W to 300W: $180 to $350
- Inline fan and carbon filter, 4 inch: $60 to $150
- Clip fan for air movement: $15 to $40
- Timer: $10 to $25
- Thermometer and hygrometer: $10 to $30
- pH meter or pH test kit: $15 to $50
Consumables
- Fabric pots, 3 to 5 gallon, set of five: $10 to $20
- Soil or coco coir: $15 to $40 per grow
- Nutrients, base set: $25 to $80
- Seeds: $10 to $20 each
- Clones: $10 to $25 each where legal
Electricity
A 150W light on an 18-hour schedule uses 2.7 kWh per day. A 4-inch fan uses about 0.3 kWh per day at 24 hours of run time. Total is near 3 kWh per day, or 90 kWh per month.
cheap small grow setup for 1-2 plants
The US average residential rate was about 16 to 17 cents per kWh in 2024. At that rate, power runs $14 to $15 per month.
cheap small grow setup for 1-2 plants
A 300W light doubles the light portion. Expect $20 to $30 per month during flower, when the schedule drops to 12 hours.
A four-month grow from seed uses 350 to 500 kWh. At 16 cents per kWh, that is $56 to $80. Air conditioning in a warm room can add more than the light itself.
Startup and recurring
Tent, light, fan, filter, and meters are one-time buys. They last 2 to 5 years. Medium, nutrients, and seeds repeat each grow. A second run costs $50 to $150 in consumables plus power.
Home grow rules
Home cultivation is legal in some US states and banned in others. Plant counts range from 2 to 12 per household. Some states require plants be kept from public view or tagged. Check your state cannabis agency before you buy gear. Local zoning rules and rental leases can also bar a grow.
Ways to lower the cost
- Buy a 2x2 tent and one 100W light. A full kit can land under $300.
- Use dry amendments or pre-charged soil to skip bottled nutrients.
- Skip the carbon filter in a garage or detached space if odor is not a concern.
- Run the light at night in summer to cut cooling load.