Ask how much one cannabis plant yields and you will hear everything from "an ounce" to "ten pounds," and the frustrating part is that both answers are true. Yield is not a property of the plant; it is a property of the setup. This guide gives the honest numbers by grow type, the math that actually predicts indoor harvests, an estimator for your specific setup, and what separates an average plant from a one-pounder.
- The honest averages
- Yield estimator
- The indoor math: grams per watt
- Outdoor: where the huge numbers come from
- Wet weight versus dry weight
- What a one-pound plant actually looks like
- How many plants per tent?
- From chop to jar: a worked example
- What actually moves yield
- Frequently asked questions
- The short version
The honest averages
All numbers below are dried, trimmed flower, which is the only weight that matters (more on that below).
| Grow type | Beginner | Solid grower | Dialed in |
|---|---|---|---|
| Indoor, 2x2 tent (100 to 150W LED) | 1 to 2 oz (30 to 55 g) | 2 to 4 oz (55 to 110 g) | 4 to 6 oz (110 to 170 g) |
| Indoor, 4x4 tent (400 to 500W LED), per plant at 4 plants | 1.5 to 3 oz (45 to 85 g) | 3 to 5 oz (85 to 140 g) | 5 to 8 oz (140 to 230 g) |
| Indoor, one big trained plant in a 4x4 | 3 to 5 oz (85 to 140 g) | 6 to 10 oz (170 to 280 g) | 12 to 16 oz (340 to 450 g) |
| Greenhouse, full season | 4 to 8 oz (110 to 230 g) | 8 to 16 oz (230 to 450 g) | 1 to 3 lb (450 to 1,360 g) |
| Outdoor in the ground, full season | 2 to 8 oz (55 to 230 g) | 8 oz to 2 lb (230 to 900 g) | 2 to 6 lb and beyond (900 to 2,700+ g) |
| Autoflower, any setting | 0.5 to 1.5 oz (15 to 45 g) | 1.5 to 3 oz (45 to 85 g) | 3 to 6 oz (85 to 170 g) |
Notice the spread inside each row. The gap between a beginner and a dialed grower with identical equipment is routinely three to four times, which is why every honest answer to the yield question starts with "it depends" and then, unlike this guide's competitors, actually says on what.
Yield estimator
Set it to your grow and get a realistic dry-weight range, not a seed-catalog fantasy:
The indoor math: grams per watt
Indoors, the light sets the ceiling and everything else decides how close you get to it. The standard benchmark is grams of dried flower per watt of actual light draw:
| Skill level | Grams per watt (LED) | 480W example |
|---|---|---|
| First grows, mistakes included | 0.3 to 0.5 | 145 to 240 g (5 to 8.5 oz) |
| Competent, stable environment | 0.6 to 0.9 | 290 to 430 g (10 to 15 oz) |
| Dialed: full canopy, VPD managed | 1.0 to 1.3 | 480 to 625 g (17 to 22 oz) |
Three things about this math that save you from bad conclusions:
- Use actual draw, not "equivalent" wattage. A light marketed as "1000W equivalent" that pulls 150 watts from the wall is a 150 watt light, and 0.8 g/W on it is 120 grams, not 800.
- The per-plant number is just the total divided by the count. Four plants under 480 watts do not each get 480 watts. One big trained plant and four medium ones under the same light yield about the same total; the choice is about veg time and plant count limits, not total weight.
- g/W assumes the canopy fills the light's footprint. A lonely untrained plant under a big light wastes most of the photons on the floor. Filling the space is what training is for.
Outdoor: where the huge numbers come from
Outdoors there is no wattage ceiling; the sun is free and unlimited. Yield scales with plant volume, and plant volume scales with root room and season length:
| Setup | Typical dry yield | Why |
|---|---|---|
| 5 to 10 gallon pot on a patio | 2 to 6 oz (55 to 170 g) | Root-bound at a manageable size |
| 20 to 30 gallon pot or raised bed | 8 oz to 1.5 lb (230 to 680 g) | Room for a 5 to 6 ft frame |
| In the ground, planted by late May | 1 to 4 lb (450 to 1,800 g) | Unrestricted roots and a full season |
| In the ground, big-plant methods (trellised, fed hard) | 5 to 10+ lb (2,300 to 4,500+ g) | Tree-sized plants; the record chasers |
The catch is that outdoor yield is a bet on the back half of the season. Everything that matters happens in September and October, exactly when rain and cold nights arrive, and a wet week during ripening can hand a quarter of that giant plant to bud rot. Big outdoor numbers belong to growers whose plants finish before their weather does, which is a genetics decision as much as a skill one.
Wet weight versus dry weight
The single most common way growers fool themselves: weighing at chop. Fresh-cut cannabis is mostly water, and it loses 75 to 80 percent of its weight in the dry.
| Wet weight at harvest | Expect dry, trimmed |
|---|---|
| 100 g | 20 to 25 g |
| 1 lb (454 g) | 3.5 to 4 oz (100 to 115 g) |
| 1 kg | 200 to 250 g |
Multiply wet weight by 0.22 for a realistic estimate. Trim style moves the final number a little (tight-trimmed bud weighs less than a shaggy trim), which is one of several reasons two growers can honestly report different weights from identical plants.
What a one-pound plant actually looks like
"A pound per plant" is the number everyone quotes and few have seen. Dried, a pound is 454 grams: roughly four hundred fifty solid grams of trimmed flower, or about two full gallon jars packed. The plant that produces it is not a tent plant that got lucky:
Indoors, a pound from a single plant means monopolizing at least a 4x4 tent and 450+ watts with a long veg and serious training. Outdoors it means a plant with a six-foot frame, thirty-plus gallons of root zone or open ground, planted early and finished healthy. Both are achievable. Neither happens by accident.
How many plants per tent?
Plant count does not change the total much, but it changes the timeline and the workload a lot. The light's footprint produces roughly the same weight however you slice it; more plants just fill the canopy with less veg time, while fewer plants take longer but mean fewer pots to water and fewer plants against any legal count.
| Tent | Comfortable plant count | Veg time to fill | Per-plant share of the harvest |
|---|---|---|---|
| 2 x 2 ft | 1 | 3 to 4 weeks | Everything |
| 2 x 4 ft | 2 | 3 to 4 weeks | Half each |
| 4 x 4 ft | 4 (or 1 trained, vegged long) | 4 weeks at 4 plants; 8+ weeks for 1 | Quarter each |
| 4 x 8 ft | 8, or 2 big trained plants | 4 weeks at 8 plants | Eighth each |
Crowding past these counts costs weight rather than adding it: plants shade each other, interior airflow dies, and larf replaces usable flower on the lower half of every plant. If your state caps plant count, one or two big trained plants per light is how to keep the harvest total while staying inside the number.
From chop to jar: a worked example
Here is what actually happens to the weight of a respectable 4x4 harvest, so no number on the scale surprises you:
| Stage | Weight | What happened |
|---|---|---|
| Wet, whole plants at chop | 1,600 g | Four plants, branches and fan leaves included |
| Wet, bucked to branches | 1,250 g | Fan leaves and main stalks removed |
| Dry, day 10 | 340 g | 75 percent of the remaining weight was water |
| Trimmed flower | 295 g (10.4 oz) | Sugar leaf trimmed off (save it for extracts) |
| Cured, jarred | 285 g (10 oz) | A little more moisture equalizes out |
From 1,600 grams on chop day to 285 in jars is not a failed harvest; it is a completely normal one, about 0.6 grams per watt on a 480 watt light. Growers who only remember the chop-day number spend the whole cure feeling robbed. Write down the wet weight, multiply by 0.22, and judge the grow against that.
What actually moves yield
In rough order of impact for a home grow:
| Factor | Realistic effect | Notes |
|---|---|---|
| Light (indoor) | Sets the absolute ceiling | No technique out-yields missing photons |
| Canopy training | +20 to 50 percent over untrained | Topping plus LST or SCROG turns one tall cola into a flat table of many |
| Veg time / final plant size | Roughly linear with frame size | The cheapest yield lever there is: bigger plant, bigger harvest |
| Environment (VPD, temps, airflow) | The gap between 0.5 and 1.0 g/W | Get the VPD right and everything else works better |
| Genetics | ±30 percent between strains, same care | A heavy producer simply builds more flower; browse high-yield strains |
| Pot size (containers) | Caps plant size hard | Rule of thumb: 1 to 2 gallons per month of total plant life |
| Starting from a clone vs seed | Consistency more than raw size | A verified clone removes the male risk and the phenotype lottery, so every run is repeatable |
Frequently asked questions
How much does one outdoor plant yield on average?
A full-season outdoor plant in decent conditions averages around a half pound (230 g) dried, with in-ground plants commonly reaching one to two pounds and pot-grown patio plants landing closer to a few ounces. Root room and planting date explain most of the difference.
How much can I get from one plant indoors?
Per plant depends on how many share the light. Under a 480 watt LED, expect 10 to 15 ounces total as a competent grower, whether that is one big plant or four smaller ones. A dialed single-plant SCROG in a 4x4 can reach a pound.
Is 2 pounds from one plant possible?
Outdoors, yes, and not even rare with in-ground plants started early in a long season. Indoors it is expert territory: think 650+ watts dedicated to one huge trained plant with months of veg.
How many plants do I need for a pound?
Think in light, not plant count: a pound indoors wants roughly 450 to 500 watts of quality LED run well, however many plants you spread under it. Four plants at 4 ounces each is the same pound as one plant at 16, and several weeks faster.
Do autoflowers yield less?
Per plant, usually yes: 1 to 3 ounces is typical because the fixed timeline caps plant size. Per year they can compete, since you fit three to four runs where a photoperiod grow fits two.
How much does a plant yield in a 5 gallon bucket?
Two to four ounces dried is the realistic range. A 5 gallon root zone supports roughly a 3 foot plant, and no amount of feeding pushes a root-bound plant far past what its container allows.
Why did my yield come in so far under the seed bank's number?
Seed catalogs quote grams per square meter from optimized commercial-style grows, sometimes wet, always best case. Divide catalog promises by two to three for a realistic home target, then check whether your canopy actually filled the light footprint, which is the usual gap.
Whatever the target, it starts with genetics that can carry the weight. Browse our rooted, HLVd-tested clones, the high-yield lineup in particular, and give one plant a real season.
The short version
Dried and trimmed: a few ounces per plant in a shared tent, half a pound to a pound for a big trained indoor plant, and anywhere from ounces to multiple pounds outdoors depending on root room and season. Indoors, estimate with grams per watt: 0.5 as a beginner, around 1.0 dialed in. Weigh nothing until it is dry, multiply wet weight by 0.22 if you must guess early, and remember the ranking: light first, full canopy second, plant size third, environment always. The plant will yield what the setup allows. Build the setup for the number you want.