In the Field
Inside real operations,
with real growers.
From craft grows to large-scale commercial facilities across North America and Europe.
The ones that survive don't grow less — they grow smarter, without ever sacrificing what makes their flower worth buying.
Your cost per gram is killing you. GroDoctor builds the precision systems, data-driven SOPs, and environmental controls that fix it — while protecting the craft that defines your operation.
The operators failing right now aren't failing because they love their craft too much. They're failing because they never built a real system underneath it.
GroDoctor builds that system — precision environments, data-driven decisions, dialed-in operations — while protecting everything that makes your flower special. This isn't a corporate playbook. It's the science that lets the plant do what it does best.
Most growers reach out after a stretch of bad harvests, rising costs, or shrinking margins. We start by finding where you're losing money upstream — before it ever shows up at harvest.
"Your environment is either working for you or against you. We find out which — and fix it."
"A bad harvest doesn't start at harvest. It starts six weeks before — in your environment, your data, your SOPs."
"Better data. Better decisions. Better flower. Every time."
Every technique GroDoctor has applied to cannabis — the environmental controls, the precision irrigation, the systems thinking — comes from operating at a level most consultants have never seen.
Built on experience spanning The GRODAN Group (the world's leading substrate science company), VertiFarms, and Future Growing — with commercial aeroponic systems built for NASA, the SF Giants, Google, Microsoft, and the world's largest hydroponic operations.
Unlike consultants who double as gear salespeople, when GroDoctor recommends a product, it's because we've seen it work in real facilities — not because we earn a commission.
"Indoor precision. Greenhouse scale. Outdoor efficiency. We've operated in all three environments — and brought what worked into cannabis."
Three clear phases. One goal: a more profitable operation that never compromises on quality.
A full-day, on-site deep dive into every layer of your operation. We find what's costing you — in yield, inputs, energy, and consistency — before prescribing anything.
A detailed written roadmap — prioritized actions, ROI timelines, phase-by-phase milestones. Built around your specific facility, strains, and team. Not a generic checklist.
Full-cycle coverage from cuttings through harvest. Weekly calls, unlimited email support, photo and video troubleshooting. We stay in it with you until results are real.
Douglas Jacobs — the GroDoctor — isn't a cannabis consultant who once grew some plants. He's a precision horticulture expert who has built and operated growing systems at a scale most people never encounter, and spent years applying that mastery to cannabis.
His background spans The GRODAN Group, VertiFarms, and Future Growing — building aeroponic and CEA systems for the most demanding clients in the world. In 2011, he built New Orleans' first commercial aeroponic supermarket. He has been featured in Ed Rosenthal's publications, written extensively for Garden Culture Magazine, and spoken at leading industry conferences.
The cross-industry credentials aren't a distraction from cannabis — they're what makes the difference. GroDoctor has seen what elite environmental control and disciplined systems thinking do at scale. That expertise comes to your facility.
Founder · Miami Beach, FL
970.309.4014 · linktr.ee/grodoctor
GroDoctor works with trusted partners including GrowPros Solutions. When we recommend a product, it's because we've seen it perform in real facilities — not because of referral fees or commissions.
From craft grows to large-scale commercial facilities across North America and Europe.
Articles, videos, and features across leading cannabis and horticulture publications.
No long contracts upfront. No pitch. A real conversation about your grow first.
A 30-minute conversation about your facility, your goals, and your biggest pain points. No commitment, no pitch — just a real look at where you are.
Based on what we learn, GroDoctor prescribes a tailored approach — whether that's a facility audit, ongoing grow guidance, or both.
Better yield. Lower cost per gram. Better flower. Results you can measure, documented from day one.
Most operations GroDoctor visits are running at 60–70% of their potential — not because the growers don't care, but because nobody has ever looked at the whole picture at once.
That's what the free call is for. No pitch. No commitment. Just a real conversation with the GroDoctor — someone who has been in your room.