Last updated: March 2026
The cost to grow cannabis at home depends almost entirely on how you choose to grow. An outdoor grow in good soil can be done for under $100. A solid indoor setup runs $300–$500 before your first harvest. A well-equipped indoor grow room with quality lighting can push past $1,000 upfront. The range is that wide because the paths are that different.
This guide breaks down the real costs for three approaches: outdoor, basic indoor, and a more extensive indoor setup. For each one, we separate the one-time startup costs from the ongoing per-harvest costs, because that’s where most cost breakdowns fall short. Seeds are included in every path, and as you’ll see, they’re one of the few costs that stays the same across all three.
Quick Answer
| Setup | One-Time Startup | Per-Harvest Cost | Notes |
|---|---|---|---|
| Outdoor (2–3 plants) | $50 – $160 | $20 – $50 | Lowest cost, weather dependent |
| Basic Indoor (2×2 tent) | $250 – $400 | $50 – $100 | Controlled environment, small yield |
| Mid-Range Indoor (4×4 tent) | $500 – $900 | $100 – $200 | Best quality/cost ratio over time |
Seeds run $5–$15 per seed regardless of setup. Feminized seeds from a quality source are the same cost whether you’re growing indoors or out.
Table of Contents
- Outdoor growing costs
- Basic indoor growing costs
- Mid-range indoor growing costs
- Recurring costs every grower pays
- The cost most people underestimate
- Where seeds fit into the budget
- Does home growing actually save money?
- FAQ
Outdoor Growing Costs
Outdoor is the lowest-cost path to growing cannabis at home. The sun does the work that a grow light would otherwise do, which removes your biggest expense. If you already garden, you may have most of what you need.
One-time startup costs:
| Item | Estimated Cost |
|---|---|
| Fabric pots (3–15+ gallon depending on plant size goal, 2–3 pots) | $10 – $30 |
| Quality potting soil (enough for 2–3 pots) | $20 – $40 |
| Basic nutrients (a simple bloom/grow set) | $20 – $40 |
| Seeds (2–3 feminized seeds) | $20 – $45 |
| Total | $70 – $160 |
Per-harvest recurring costs:
After your first grow, the main recurring costs are fresh soil or amendments (if you’re not amending your existing soil), nutrients, and seeds for the next run. Realistically, plan on $20–$50 per harvest once the startup costs are behind you.
What affects outdoor costs: Soil quality is the biggest variable. Cheap potting mix from a hardware store will grow cannabis, but amended soil or a living soil mix gives plants what they need without heavy nutrient inputs. Spending an extra $15–$20 on better soil often reduces what you spend on nutrients. Pot size is the other major variable. A 3–5 gallon pot keeps plants manageable and works well if you’re watering frequently, but growers who want larger plants and are comfortable with less frequent deep watering often go 10–15 gallons or bigger. Larger pots mean more soil cost upfront but give roots more room to develop.
Outdoor limitations to budget for: If you’re in a climate with a humid fall season, short season or autoflowering genetics matter. A crop lost to botrytis late in flower is a total write-off. Factor that into strain selection, not just cost. Growers in colder or wetter climates sometimes add a basic greenhouse or hoop structure ($50–$200) to extend the season and protect plants from rain and early frost, a worthwhile addition if your outdoor window is tight. See our outdoor planting timing guide for regional growing season information. Check out our USDA Zone Map for climate specific seeds by zip code.
Basic Indoor Growing Costs
A 2×2 grow tent setup is the entry point for indoor growing. It fits in a closet, produces 1–3 ounces per harvest depending on the strain and your technique, and gives you full environmental control regardless of the season or climate.
One-time startup costs:
| Item | Estimated Cost |
|---|---|
| 2×2 grow tent (AC Infinity, Vivosun, or similar) | $60 – $100 |
| LED grow light, 100–200W | $80 – $130 |
| Inline fan + carbon filter | $50 – $80 |
| Fabric pots (1–2 gallon) | $8 – $15 |
| Soil + perlite | $20 – $35 |
| pH meter | $15 – $30 |
| Basic nutrients | $20 – $40 |
| Seeds (2 feminized seeds) | $10 – $30 |
| Total | $273 – $460 |
Per-harvest recurring costs:
Once you have the equipment, a 2×2 indoor harvest costs roughly $50–$100 to repeat: fresh soil or amendments, nutrients, seeds, and electricity. Electricity on a small 2×2 setup running a 100–150W LED runs approximately $10–$20 per month depending on your local rate.
What to know about cheap vs. quality equipment: The tent and fan are not where to cut corners. A poorly ventilated tent creates humidity problems that lead to mold. A quality inline fan from AC Infinity or Vivosun costs a little more but lasts multiple grows. The light matters most for yield.
Mid-Range Indoor Growing Costs
A 4×4 tent is the setup most growers land on once they’ve done a first grow and decide to continue. It produces meaningfully more per harvest (up to a pound or more with the right genetics and technique), the cost per ounce drops significantly over time, and the equipment is more capable across the board.
One-time startup costs:
| Item | Estimated Cost |
|---|---|
| 4×4 grow tent | $100 – $160 |
| LED grow light, 400–600W | $200 – $400 |
| Inline fan + carbon filter (6 inch) | $100 – $160 |
| Fabric pots (3–5 gallon, 4 pots) | $15 – $25 |
| Soil + amendments | $40 – $70 |
| pH and EC meters | $30 – $60 |
| Nutrients (a full veg/bloom set) | $40 – $70 |
| Seeds (4 feminized seeds) | $40 – $60 |
| Total | $565 – $1,005 |
Per-harvest recurring costs:
A 4×4 setup running a quality 400W+ LED will add roughly $30–$60/month to your electricity bill. Per-harvest recurring costs (soil, nutrients, seeds) run $100–$200. The payback period on the setup investment compresses fast once you’re harvesting regularly.
Recurring Costs Every Grower Pays
Regardless of your setup, certain costs repeat every grow. These are what most cost guides ignore, and they’re what determines your true cost per harvest over time.
Nutrients: Even in amended soil, most plants benefit from added nutrients during vegetative growth and flowering. A basic two-part nutrient line (something like General Hydroponics Flora Series or Fox Farm Trio) runs $30–$60 and lasts multiple grows.
Soil: If you’re growing in containers, most growers use fresh soil each run. A quality potting mix like Fox Farm Ocean Forest or Roots Organics runs $15–$30 per bag. One bag handles 2–4 pots depending on size.
Electricity: This is the cost that catches indoor growers off guard. A 200W LED running 18 hours/day for 8 weeks of vegetative growth and 8 weeks of flowering adds up to roughly 200 kWh. At the national average of about $0.16/kWh, that’s around $32 per grow for the light alone. Add fans, timers, and other equipment and you’re closer to $40–$60 per harvest for a 2×2 setup, $70–$120 for a 4×4.
Seeds: Every new run means new seeds if you’re not cloning. Quality feminized seeds run $5–$15 per seed. Two seeds for a 2×2, four seeds for a 4×4.
Water: Indoor growers rarely notice this on the bill, but outdoor growers in dry climates (the Southwest, parts of California, desert zones) can use significant water through a long season, especially with large containers. If you’re on a well or paying elevated water rates, it’s worth factoring in.
The Cost Most People Underestimate
Time. Cannabis is not a set-it-and-forget-it plant. A healthy outdoor grow requires 2–3 hours per week through the season. An indoor grow requires daily check-ins and more active management of the environment. Harvest and trim time alone can run 4–8 hours per pound of dry flower.
This isn’t a reason not to grow. Most growers enjoy the process and consider it part of the hobby. But it’s an honest cost that doesn’t show up in any equipment list.
Where Seeds Fit Into the Budget
Seeds are one of the most controllable costs in any home grow setup, and they’re the one input that directly determines what you’re growing. A bad seed source wastes everything downstream: the soil, the nutrients, the electricity, and the time.
Feminized seeds run $5–$15 per seed from a quality source. That’s $20–$60 for a full run depending on your setup size. As a share of your total grow cost, seeds are rarely more than 10–15% of the budget, but they’re the one variable where cutting costs reliably produces worse results.
All Triangle Hemp seeds are feminized, meaning every plant will be female. Buying regular or bag seeds to save a few dollars often means some of your plants are male, which have to be removed before they pollinate your females and eliminate your flower harvest. Every Triangle Hemp seed also comes with a germination guarantee. If your seeds don’t sprout following our germination guide, we’ll replace them at no charge. Browse our seed catalog or call or text us at (919) 410-6945 if you want help choosing the right genetics for your setup and region.
Does Home Growing Actually Save Money?
For almost every grower, yes, as long as your plants produce. Dispensary prices in most states run $30–$60 per eighth. Even a modest harvest from a basic setup produces flower at a fraction of that cost, regardless of whether you’re growing outdoors or indoors.
An outdoor grower who spends $100–$160 upfront and harvests 2–4 ounces from 2–3 plants is producing flower at well under $20 per ounce in total costs. By the second season, recurring costs drop to $20–$50 and the savings become even more significant.
An indoor grower spending $300–$500 on a 2×2 setup and harvesting 1–2 ounces per run is producing flower at roughly $150–$500 per ounce on the first harvest. That number looks steep until you account for the fact that the equipment is paid for. By the second and third harvest, that same run costs $50–$100 in supplies and electricity, bringing the cost per ounce down to $25–$100 depending on yield. At a 4×4 scale with 4–8 ounces per harvest, the cost per ounce drops further with every run as the setup cost gets amortized across more harvests.
The one real caveat is the first grow. Most new growers produce less than their setup is capable of on the first run, and a failed grow is the one scenario where the math doesn’t work in your favor. Starting with quality feminized genetics from a reliable source is the single best thing you can do to protect that first investment.
FAQ
How much does it cost to grow one cannabis plant at home? A single outdoor plant costs $50–$80 to grow including soil, a fabric pot, basic nutrients, and a feminized seed. A single indoor plant in a small tent costs $200–$300 for the first grow including equipment, dropping to $30–$60 per run after that.
Is it cheaper to grow cannabis indoors or outdoors? Outdoors is significantly cheaper, both upfront and per harvest. The tradeoff is that outdoor grows are weather and season dependent. Indoor growing costs more but gives you full control over the environment and the ability to grow year-round.
What is the cheapest way to grow cannabis at home? A basic outdoor grow with 2–3 feminized plants in fabric pots with quality soil and minimal nutrients is the lowest-cost path. With a good growing season and healthy plants, you can produce several ounces for under $150 total investment.
How much does electricity cost to grow cannabis indoors? A small 2×2 setup running a 100–150W LED adds roughly $15–$30 per month to your electricity bill. A 4×4 setup with a 400–600W light runs $40–$80 per month. Your local electricity rate is the biggest variable.
Are feminized seeds worth the cost? Yes. Feminized seeds guarantee female plants, which are the ones that produce flower. With regular seeds, a portion of your plants will be male and have to be removed before they pollinate your crop. The cost difference between feminized and regular seeds is small relative to the cost of losing half your plants.
How many plants should a new grower start with? Two to three plants is the right starting point. It’s enough to learn on without being overwhelming, and most home grow laws allow between 2 and 6 plants for personal use. Check our state home grow laws series for the rules in your state.
About the Author
Matt, Co-Founder, Triangle Hemp – Matt has been growing plants commercially since 2013, starting with Endless Sun Farms before co-founding Triangle Hemp in 2017 alongside childhood friend Chase. Over more than a decade, Triangle Hemp has produced and sold over a million seeds to home growers, homesteaders, and hemp farmers across the United States. Matt and Chase manage seed selection personally, only carrying genetics Triangle Hemp has grown and tested. Learn more about Triangle Hemp.
