How much cannabis does one plant yield?
Cannabis yield per plant runs about 1 to 4 ounces (28 to 113 grams) of dried, trimmed flower for a healthy indoor plant. Outdoor plants in warm climates often reach 8 to 16 ounces (227 to 450 grams), and expert indoor growers who train plants and run strong lights report 6 to 8 ounces per plant.
Cannabis Yield Per Plant: Tips to Maximize Your Harvest
These figures cover dried bud only. Water makes up 70% to 80% of fresh bud weight, so wet weight tells you nothing about your final harvest.
cannabis yield per plant photoperiod
Indoor yield per plant
Most home grows finish between 1 and 4 ounces per plant. The spread comes from light power, pot size, and veg time, not from luck.
Cannabis Yield per Plant in Photoperiod Grows: Real Numbers and How to Raise Them
- Basic setup (small pot, weak light, short veg): 0.5 to 1 ounce (14 to 28 grams)
- Solid home grow: 1 to 4 ounces (28 to 113 grams)
- Tuned grow with training, CO2, and 6+ weeks of veg: 6 to 8 ounces (170 to 227 grams)
Growers compare runs with grams per watt instead of grams per plant. A result of 0.5 to 1 gram per watt is a normal target for LED lights, and 1.5 grams per watt marks a skilled grow. Per square foot of canopy, expect 30 to 60 grams.
Outdoor yield per plant
Sunlight and root space give outdoor plants a large edge. A plant in the ground with a full season can produce 1 to 2 pounds (450 to 900 grams), and big sativas in long-season climates hit 5 pounds or more.
Outdoor numbers depend on climate, season length, and legal plant counts where you live. Cold nights, early rain, and mold cut harvests before weight becomes the issue.
Autoflower vs photoperiod yield
Autoflowers start flowering on their own after 3 to 5 weeks, so they build less structure. A healthy auto yields 1 to 3 ounces, with top setups reaching 4 to 6 ounces.
Photoperiod plants let you choose veg length. Add three or four weeks of veg and a photoperiod plant can double the harvest of an autoflower started the same day.
Wet weight vs dry weight
Fresh bud holds a lot of water. Drying removes 70% to 80% of the weight over 10 to 14 days, and trimming takes stems and sugar leaves on top of that.
A 400-gram wet plant ends up near 100 grams of dry flower after trimming. That gap explains why two growers with the same plant can report numbers that look nothing alike.
Weigh your harvest after drying and a 2 to 4 week cure at 58% to 62% relative humidity. That final number is the one worth reporting.
What decides cannabis yield per plant?
Light
Light sets the ceiling. In flower, cannabis wants 600 to 900 PPFD (a daily light integral near 30 to 40) without added CO2, and 1,000 to 1,200 PPFD with CO2 enrichment. Weak lights cap yield no matter how good your nutrients are.
Genetics
Two seeds from the same pack can differ by 2x in final weight. Yield-focused hybrids with big colas beat compact indicas, and clones from a proven mother remove the guesswork.
Pot size and root space
Roots support the canopy above them. A 3-gallon pot suits a small plant, 7 to 10 gallons fits a trained indoor plant, and outdoor plants do best in 30-gallon pots or raised beds.
Veg time and training
Each extra week of veg adds branches and bud sites. Topping, low-stress training, and a SCROG net spread the canopy so light reaches more than the top cola.
Environment and nutrients
Keep day temps at 75 to 85F, nights at 68 to 75F, and humidity near 40% to 50% in flower. Hold VPD between 1.2 and 1.5 kPa, and keep pH at 6.0 to 6.5 in soil or 5.8 to 6.2 in coco and hydro.
How to increase yield per plant
- Pick a strain known for weight, not just flavor.
- Give the canopy 30 to 40 DLI in flower.
- Veg photoperiod plants for 6 to 8 weeks.
- Train the canopy flat with topping and LST.
- Move up to a 7 to 10 gallon pot.
- Hold VPD and pH in range through flower.
- Harvest when trichomes turn cloudy with a few amber heads.
- Dry slow, then cure for 2 to 4 weeks.
Common yield mistakes
- Reporting wet weight as your harvest.
- Cutting plants two weeks early, which costs weight and potency.
- Feeding heavy in late flower instead of tapering.
- Packing too many plants into one tent, which lowers grams per square foot.
- Skipping training and letting side branches sit in shade.
FAQ
How many grams does one plant produce?
Indoor plants produce about 28 to 113 grams of dried flower, and outdoor plants produce 227 to 450 grams or more. Skilled growers pass 170 grams indoors with training and strong lights.
Does more veg time always mean more yield?
No. Longer veg helps until the plant outgrows its pot, light footprint, or tent height. Past that point, extra weeks add cost and risk without adding bud.
Is grams per watt better than yield per plant?
Yes for comparing setups. Grams per watt accounts for light power, and grams per square foot accounts for space. Yield per plant shifts with how many plants you run.
What is a good yield for a first grow?
One to two ounces per plant is a normal first harvest. Focus on a clean run with no mold, pests, or early chop, then raise the number on the second round. Pop's Cannabis can point you to strains and gear that fit a home grow.