Schedule a Week of Cultivation Work in Seconds
Put crop-linked defoliation, scouting, and canopy-photo work into a crew-ready weekly plan.
Compare one harvest across four useful operating ratios. The bands are transparent reference points, not universal biological targets, and the dollar output is a directional gross-revenue scenario.
Your reference-band comparison and directional scenarios will appear here.
This walkthrough shows how Growgoyle schedules crew work on the living crop calendar. It demonstrates the operational workflow behind timing; it does not prove that a particular reference band is attainable for your rooms.
Put crop-linked defoliation, scouting, and canopy-photo work into a crew-ready weekly plan.
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The sources below provide context. The colored thresholds are Growgoyle planning heuristics, not validated universal performance standards.
10th Annual State of the Lighting Market Report (2025). The report received 185 total responses; the commercial yield distribution cited here uses a smaller base of 76 respondents. It informs g/sqft context only.
View report (PDF) →University of Guelph research on cannabis yield response to light intensity. It provides lighting context but does not validate this page's commercial g/W tier cutoffs.
View study (PMC) →25 years in commercial horticulture. Start-ups: ~35 g/sqft. Established: 50-70 g/sqft. 100+ g/sqft: few and far between.
Read article →Industry guidance on room turnaround and annual harvest cadence. Use it as workflow context; cultivar length, sanitation, staffing, and facility design change the attainable number.
Read article →Grow room efficiency is not one number. These four ratios offer compact views of canopy use, fixture output, output per watt of installed lighting, and room cadence. They do not measure quality, saleable-grade mix, labor, HVAC energy, crop risk, or total cost on their own.
| Metric | What It Measures | Upper Reference Band | Why It Matters |
|---|---|---|---|
| Grams/sq ft | Canopy utilization | 80+ g/sqft | Are you filling the room? |
| Lbs/light | Fixture performance | 3.0+ lb/light | How hard is each light working? |
| Grams/watt | Output per installed lighting watt | 1.8+ g/W | How does harvest weight compare with entered fixture wall draw? |
| Turns/year | Operational throughput | 5.8+ per room | How fast do rooms cycle? |
The four metrics are not independent. A change in entered harvest weight moves grams per square foot, pounds per light, and grams per watt together because all three reuse the same numerator. Room cadence uses separate timing inputs. If yield and cadence both change, the annual gross-revenue scenario compounds those assumptions.
Because g/sqft, lb/light, and g/W all reuse the same yield numerator, a stronger harvest can move all three at once. Do not add their modeled scenarios together. Use each ratio to ask a different operational question, then verify the answer in the underlying room and batch record.
Useful areas to inspect when a reference ratio is lower than expected include:
Canopy utilization. Empty canopy, uneven plant size, edge losses, cultivar architecture, and saleable-grade mix can all influence grams per square foot. Inspect the room record before assuming canopy management is the cause.
Room turnaround. Cleaning, repairs, plant readiness, staffing, and schedule conflicts can extend chop-to-flip time. Shortening it may increase annual room availability, but sanitation and crop readiness still set the boundary.
Variation between runs. A single harvest can hide normal cultivar differences or an unusual event. Check relative yield variation across several comparable harvests before treating one score as representative.
The scorecard highlights the lowest reference band as a place to investigate. It does not know feasibility, crop quality, facility constraints, incremental costs, or causality. Review the source records, choose a plausible operational test, and measure the full result rather than chasing the score by itself.
These tools exist because I needed them. I'm Eric, commercial grower and software engineer in Michigan. I built Growgoyle to run my own facility and these calculators are just a piece of it. If you're running a grow and want to talk shop, text me.
Text me: 616-221-9856 · info@growgoyle.ai
- Eric