In The Mix

What happens when you stress plants on purpose?In this video, we break down university research from Dr. Jose Leme’s lab on plant stress, trichomes, water deficit, and biostimulants.Topics covered:Stress signals vs real stressTrichome development and plant defenseWater deficit strategies (dry back vs dry out)Biostimulants like seaweed, humic acid, chitosan, and silicaHow timing, environment, and genetics affect outcomesSome of the results challenge common assumptions.If you're interested in plant science, controlled environment agriculture, or optimizing plant performance, this is worth understanding.Chapters00:00 Intro – Who is Dr. Jose Leme?01:20 The trichome methyl jasmonate experiment03:34 Why trichomes behave unexpectedly05:20 Trichomes as a defense mechanism10:45 Measuring trichomes (limitations)11:56 Size vs concentration24:09 Genetics vs environment34:27 Water stress experiment35:00 When stress backfires36:31 Nutrients vs stress37:00 Dry back vs dry out45:36 Pushing genetic potential46:10 Biostimulants and signaling47:05 What showed promise48:48 What’s still unknown

Most facilities make the same hiring mistake: choosing a head cultivator based on plant knowledge instead of leadership ability.In modern controlled environments, success depends less on hands-on growing and more on managing systems, people, and performance.This video breaks down:Why designing around one cultivator is riskyWhat actually matters in a lead roleHow to avoid costly hiring mistakes

Light interruption is one of the most overlooked risks in indoor facilities—and it often shows up after a build is “complete.”In this breakdown, Egan O’Keefe (Co-Founder of Front Row Ag, VP of Cultivation at Story of Maryland) explains:Why commissioning doesn’t end when the building is handed overWhere light leaks actually come from (doors, ductwork, equipment)How even small LEDs can impact sensitive varietiesThe difference between resilient vs. finicky geneticsWhy green aisle lighting is a safer—but not perfect—solutionThis is practical, field-tested insight for operators who want consistency, not surprises.Chapters00:00 – New facility mistake most teams make00:30 – What commissioning actually means01:15 – The hidden issue: light interruption01:40 – Hallways, traffic, and light exposure02:00 – Why most doors fail02:20 – How to actually find light leaks02:40 – Ductwork and mechanical system issues03:00 – Fixing doors and sealing rooms03:20 – Equipment LEDs and hidden light sources03:50 – Why even tiny light matters04:05 – Two types of genetics04:45 – When light leaks don’t cause problems05:00 – When they absolutely do05:15 – How herms start from small light exposure05:30 – Why early detection matters05:40 – Green lighting in aisleways (pros & limits)

In this video, we break down the VPD ranges we use from veg through late flower, why plant posture is one of the most underrated metrics in the room, and the exact reason your humidity spikes every time your CO2 runs out.What's covered:VPD targets for veg (and why 0.9–1.0 is the sweet spot)Whether to use leaf surface temp or ambient air temp and why it mattersWeek 1–3 flower VPD and day/night humidity targetsHow to ramp VPD through late flower without running mold riskThe CO2/stomata/humidity connection most growers don't connectUsing plant posture as a real-time environmental feedback signal📊 VPD charts referenced in this video are available in our Grow Guide - link below.🔗 https://books.frontrowag.com/frontrowaggrowguide2025ggusv12Chapters00:00 Intro — Common VPD Questions00:06 VPD in Veg: The 0.9–1.0 Sweet Spot01:03 Running Rooms Warm in Veg01:44 Leaf Surface Temp vs. Ambient Air for VPD02:03 Why Ambient Temp Is the Better Benchmark03:16 Week 1–3 Flower: Targeting 1.0–1.2 VPD03:57 Day vs. Night Temp and Humidity Strategy04:07 CO2, Stomata, and Humidity Spikes Explained06:12 How to Read Plant Posture as Environmental Feedback08:24 Week 4+ Flower: Ramping VPD Through Late Cycle09:04 Day/Night Temp Differential Strategy09:35 Managing Mold Risk as VPD Rises10:07 Using a VPD Chart to Plan Week by Week10:43 Adjusting for Your Facility and Equipment

Purple expression is one of the most misunderstood traits in cultivation.In this conversation, we break down why plants turn purple, when it’s genetically driven, and what actually happens when growers try to force purple expression through environmental stress.Lower air temperatures, cold root zones, spectrum manipulation, nitrogen tapering—these strategies can increase anthocyanin expression, but they don’t come for free. Many of the same levers that push color also slow photosynthesis, reduce energy availability, and introduce yield or consistency trade-offs.We also dig into:Why genetics set the ceiling for purple expressionWhy chilling root zones is especially riskyHow spectrum shifts are often the least damaging optionWhere nutrient tapering fits (and where it doesn’t)Why environmental uniformity matters more than most people realizeHow microclimates inside a room can quietly wreck nutrient strategyThis is not a “how-to force purple” guide.It’s a reality check on trade-offs, decision-making, and choosing the least damaging path for your operation.

High-performing commercial cultivation teams don’t improvise the day.They start with a master production calendar, translate it into a short list of priority tasks, and use structured morning and end-of-day meetings to keep labor aligned and prevent drift.This conversation breaks down how top-performing teams organize the day—from calendar to canopy—so work stays efficient, predictable, and repeatable at scale.00:00 - Why the day needs structure03:10 - The master calendar as the real decision-maker07:45 - Limiting the day to a few priority tasks - Why top teams avoid overloading the schedule12:30 - Morning meetings: setting direction, not micromanaging18:20 - Labor flow and task handoffs - How experienced teams sequence work across rooms and crews24:10 - End-of-day meetings: closing the loop30:40 - Scale changes structure, not principles - What stays consistent from small to very large facilities36:00 - Why efficiency creates better outcomes

Most growers treat this crop as biologically unique. That assumption breaks more things than it fixes. In this conversation, John Sokolik explains how well-studied crops like hops, tomatoes, hackberry, and lima beans reveal practical lessons about canopy density, light penetration, pest pressure, and plant defense signaling. Topics include leaf area index, under-canopy lighting, plant communication via jasmonic acid, and why some tissues become energy sinks instead of contributors.If you want higher efficiency—not just more biomass—this is the lens to use.Chapters00:00 – Why treating this crop as “exceptional” causes problems01:06 – Hops: same family, different canopy strategy02:48 – Light penetration and under-canopy lighting results03:55 – Leaf Area Index and diminishing returns05:37 – Hackberry as a pest pressure warning sign08:29 – Plant-to-plant communication and defense signaling12:52 – Tomato trichomes and transferable research14:00 – What growers should actually apply

Every time a plant is touched, there’s risk—and cost.In this conversation, we break down why plant “touchpoints” matter more than most facilities realize. From disease pressure to labor efficiency, excessive handling quietly inflates costs and introduces variability across a crop cycle.We walk through a simple exercise: counting planned plant touches from transplant to harvest—and show why many operations could remove entire steps by rethinking container strategy, trellising, and workflow design.This isn’t about cutting corners. It’s about designing systems that need less intervention to begin with.00:00 – Touching = Risk00:24 – Why Touches Matter01:10 – Count Your Touches01:56 – Target: ~6 Touches02:34 – Too Many Is a Signal03:29 – Trellis & Workflow Design05:28 – Transplant Choices06:24 – Do Less, On PurposeApply for a commercial account to work with Front Row Ag and access a fertilizer line built for professional facilities—plus dedicated support to help streamline your operation. → https://bit.ly/3YNPcZG

Improper mixing equipment is one of the most common hidden causes of inconsistent feeds, validation failures, and wasted labor.In this episode, Front Row Ag formulator Matt Curran breaks down four levels of mixing equipment - from basic barrels and drills to fully integrated cone-bottom systems - and explain how each impacts solution quality, labor time, and feed accuracy.You’ll learn:Why drills and pumps often fail at scaleHow heat, air, and poor agitation cause foaming and scalingWhen it’s time to move beyond barrelsHow mixing quality directly affects EC validationWhy water temperature matters more than most people thinkIf your validation numbers don’t line up - or your team is rushing mixes - this video explains exactly why.00:00 Why mixing equipment matters00:40 Tier 1: Barrels + drills02:05 Tier 2: Fixed barrel mixers03:24 Why pumps & aeration cause problems04:27 Tier 3: Cone tanks & recirculation05:19 Tier 4: Dedicated impeller systems06:55 Water temperature & solubility08:29 Common failures from poor mixing09:28 Validation issues explainedApply for a commercial account and get direct technical support https://bit.ly/4pzL36A

Outdoor growers are rethinking the seed vs clone decision—and not for the reasons you might expect. In this conversation, Front Row Ag’s technical team breaks down how modern seed genetics, crop scheduling, and early environmental exposure are changing what’s possible outdoors.We cover:Why seed-grown plants are now far more uniform than they used to beThe real logistical difference between seeds and clonesHow early hardening creates tougher, more resilient plantsWhat this means for large outdoor acreage and harvest consistency

Front Row Ag Technical Specialist Tyler Simmons chats with founders Matt Curran and Egan O’Keefe about what’s actually working in outdoor cultivation at commercial scale.In this conversation, the team breaks down real-world trends they’re seeing across commercial outdoor and mixed-light operations, including why many greenhouses end up costing nearly as much as indoor grows, how poor planning around light and infrastructure limits performance, and why smaller, in-ground plants are helping growers dramatically reduce labor and fertilizer costs.They cover practical topics like greenhouse design mistakes, DLI planning, plant spacing strategies, labor logistics, soil and water testing, fertilizer efficiency, and how some operators are moving from $25–50 per pound down to $10–15 per pound in just a few seasons.This episode is a grounded, field-tested discussion for cultivators navigating tighter margins, rising input costs, and the realities of large-scale outdoor production.Chapters00:00 Greenhouse design mistakes01:15 Why “indoor-level control” gets expensive02:25 DLI and seasonal light reality03:45 Sun spectrum vs indoor expression05:10 Outdoor labor and plant size tradeoffs06:55 In-ground vs container growing08:45 Soil testing before feeding11:30 Water quality challenges outdoors13:05 Managing EC, sodium, and pH in fields17:10 Silica and stress tolerance22:10 Water temperature and pathogen pressure25:00 Adjusting expectations by season26:30 Enzymes in outdoor soil systemsApply for a commercial account for bulk pricing and technical support https://bit.ly/4jc8DVr

Front Row Ag formulator explains why our fertilizer is made with purified, prilled calcium nitrate. It provides stable nitrate nitrogen in “exceedingly high abundance,” supports protein formation, improves metabolic consistency, and avoids the volatility that can derail steering and crop uniformity.Ammonium isn’t “bad” - it’s just less predictable for high-value crop production. Purified CalNit like the main component in our Part A fertilizer, gives you control, consistency, and the absolute best protein formation.Chapters0:00 Why We Don’t Use Ammonium0:10 When Ammonium Makes Sense (Mass-Scale, Non-Flowering Crops)0:23 High Salt Index and Rapid Tissue Movement Issues0:36 Why High-End Crops Require Purified Calcium Nitrate0:55 Protein Formation, Flower Development, and Metabolism Needs1:10 Control vs. Variability: How Nitrate Behaves in the Plant1:28 Why Front Row Ag Uses Only Purified, Prilled CalNit

Most irrigation problems we troubleshoot trace back to one thing: pH management mistakes. The most common? Trusting an inline meter and ignoring what’s happening in the batch tank. When pH Up hasn’t finished reacting, the real pH continues to drift upward—pushing the solution past 6.2, triggering calcium-phosphate precipitation, and eventually clogging filters and emitters.In this episode, Matt and Tyler break down why inline readings mislead at high flow rates, why the “15–20 minute rule” still matters, and how a simple 5-gallon bucket test gives you the only trustworthy pH-Up dose for your recipe.If your system keeps forming white chalky buildup or you’re fighting mysterious clogs, this is your fix.

At the heart of every successful facility is a cleaning SOP. In this episode, Tyler Simmons and Mike Harnos break down why even the most advanced setups fail when sanitation slips.From floor drains and biofilm to HVAC and mini-split nightmares, we explore how simple cleaning habits can prevent six-figure losses and burnout across your entire team.💡 Topics covered:• Commonly ignored contamination hotspots• Real examples of facility outbreaks traced to poor cleaning• The true cost of “saving” on janitorial work• How morale and cleanliness go hand in hand📘 Learn more or apply for commercial account: https://bit.ly/3WkYefw🎓 Pre-register for the Cultivator Course: https://bit.ly/440j8EO

If you had 3 minutes to explain Vapor Pressure Deficit (VPD), where would you start? In this short video, Front Row Ag’s Tyler Simmons breaks down VPD in plain language. What it is, how it connects to relative humidity, and why there’s a “Goldilocks zone” that maximizes plant water and nutrient uptake. You’ll learn how air moisture levels create suction forces that pull water through the plant, how stomata react under stress, and why finding balance between humidity, temperature, and airflow is key for consistent growth.Ready to take your understanding further?📘 Pre-register for the Front Row Ag Certified Cultivator Course — a complete introduction to Controlled Environment Agriculture (CEA), covering light management, temperature, VPD, CO₂, irrigation strategy, and root-zone optimization. 👉 https://bit.ly/440j8EOInterested in professional-grade inputs or commercial support? 💼 Apply for a commercial account here: https://bit.ly/3WkYefw

When you’re cultivating in a sealed environment like a grow room or a grow tent, running high CO₂ without enough humidity can trigger what Tyler calls the VPD Death Spiral — a feedback loop where humidity drops, stomata close, and growth grinds to a halt.This episode breaks down:Why high CO₂ lowers stomatal conductanceHow sealed rooms create extreme VPD conditionsHow to fix it fast with humidifiers or light adjustmentsWhy overusing CO₂ can reduce productivityIf you’ve ever seen plants stop transpiring in a sealed setup, this one’s for you.00:00 – The VPD Death Spiral Explained00:38 – Why CO₂ Makes It Worse01:15 – The Feedback Loop in Sealed Rooms02:00 – How to Fix It (Humidifiers & Light Control)03:00 – Real-World ExamplesGet Front Row Ag Certified to deepen your understanding of controlled environment cultivation: https://bit.ly/3WkYefwApply for a commercial account to get product support, bulk pricing, and personalized cultivation guidance. https://bit.ly/4oy4A7n

Why do some hydroponic grows see great yields in winter… then slow growth, yellowing, or strange pH problems in summer?In this video, Front Row Ag’s Matt and Tyler share real cases from commercial facilities where:Water temperature rose seasonally, dissolved oxygen crashed, and yields dropped.Root zones got too cold on concrete floors, bottlenecking growth even with perfect nutrients.Runoff pH looked wrong because irrigation shots were too large and too frequent, giving false readings.Growers overcorrected pH and wrecked consistency — when the real problem was irrigation strategy.👉 If your hydroponic plants are showing slow growth, stunted roots, low pH, or misleading runoff data, this episode will help you spot the hidden root zone issues that most growers miss.Front Row Ag’s commercial team helps operators diagnose and solve these mysteries every day — so if you’re tired of chasing mysterious issues and want consistent yields with expert support, apply for a commercial account today. https://bit.ly/4dNIjjC

Front Row technical expert Tyler Simmons breaks down the cloning practices that separate thriving facilities from the rest. In this video, he covers:Why keeping mothers too long increases pathogen riskSanitation practices that actually stop pathogen spreadAdjusting to Stronger LightingTyler also explains how to reset declining strains in just a few cycles, plus practical tips for clone hydration, cutting technique, and mother plant training.Whether you’re troubleshooting slow-rooting clones or fine-tuning a production SOP, this is a must-watch for consistent, vigorous results.Visit our website’s Resources tab for our Simplified Cloning SOP with commercial cloning recommendations.

Managing a commercial cultivation facility means keeping track of hundreds of moving parts—propagation, transplanting, sanitizing, plant training, and more. In this episode, Egan O’Keefe breaks down how ERP (Enterprise Resource Planning) systems can bring order to the chaos.Topics covered:• How ERP software like Canix, Dutchie, BioTrack, and others help with compliance and plant tracking• Scheduling propagation, topping, culling, and other recurring tasks• Creating strain-specific profiles for better timing and canopy management• Apps Vs. Big Dry Erase Calendars• The importance of daily team meetings to adjust priorities and handle curveballsWhether you’re using advanced cultivation software or keeping it old-school, the key is having a clear, daily plan that your whole team follows.Chapters0:00 Intro0:05 ERP systems and compliance tracking0:34 Scheduling propagation & rotation tasks1:18 Strain profiles & canopy management2:05 Low-tech alternatives that work2:36 Importance of daily team meetings

Uneven watering wrecks consistency. In this episode, Omar from Rivulis joins Tyler from Front Row Ag to break down the most common mistakes in irrigation system design, from pressure regulation to clogged emitters, and how to fix them with real-world setups and smarter components.💡 Learn:The truth about pressure vs. flowWhy your “perfect” crop steering protocol fails if irrigation is offWhat dripper pressure specs actually meanBest practices for line cleaning and dripper maintenanceWhether automatic flush valves are worth the investment📌 Perfect for: growers, irrigation techs, facility managers, and anyone building or troubleshooting fertigation/irrigation systems in commercial agriculture.Chapters00:00 – Why Uneven Watering Happens in New Facilities01:30 – Pressure ≠ Flow: What Every Grower Gets Wrong03:00 – Common Mistakes: Leader Pumps Without Pressure Regs04:05 – You Can’t Crop Steer if Your Irrigation is Garbage05:30 – How to Calculate Flow, PSI, and Zone Design Like a Pro06:45 – Why Emitters Matter & How to Pick the Right One08:00 – How Often Should You Replace Drippers?09:45 – Fixing Filters, Clogged Emitters & Cleaning Mistakes13:15 – Correct Way to Clean Irrigation Lines (2-Part Flush Method)20:00 – Understanding Opening Pressure vs Sealing Pressure24:30 – Sizing Pumps, Choosing Tubing, and Avoiding Supply Mistakes32:00 – Automatic Flush Valves: Worth It or Waste?

Join Tyler and Egan as they break down the science and strategy behind defoliation in commercial cultivation. Are you removing too much? Too little? Learn how to balance airflow, light penetration, and plant energy reserves for optimal yield.00:00 – Why Overdefoliation Happens00:41 – Leaves = Energy: What You Lose When You Strip02:47 – Balancing Light Penetration vs. Storage03:37 – How to Read Your Canopy Like a Pro05:13 – What Causes Overgrowth and How to Prevent It06:01 – The Light Trick to Set a Defol Standard07:26 – Strain-Specific Defol: Not One-Size-Fits-All08:28 – Why You Might Want to Remove Top Leaves Instead08:50 – Don’t Forget the Middle Canopy!

Commercial cultivators lose tens of thousands in yield and labor every year—because of bacteria they can’t see. This conversation between Tyler Simmons and Egan O’Keefe of Front Row breaks down the hidden contamination risks in your fertigation setup, RO filters, HVAC, and humidifiers—and how to fix them before it’s too late.From preventative sanitation tips to in-cycle emergency solutions like enzymatic cleaners, this video is packed with actionable steps to protect your crop and facility.👉 If you’re running a facility and want to trial Front Row nutrients or level up your operations with our Certified Technician Training, learn more at https://www.frontrowag.com/📍 Chapters00:00 – Introduction: Why Bacteria Builds Up in the First Place00:15 – Common Contamination Points in Water Systems01:22 – Shocking Agricultural Wells and Pre-Tank Sanitation02:09 – Storage Tank Strategies and Preventative Chlorination03:33 – Free Chlorine Residuals and Systemic Demand04:38 – What to Do When It’s Too Late: Enzymatic Cleaners06:08 – Retrofitting Lines for Maintenance Access08:04 – Air and HVAC: The Overlooked Contamination Vector09:02 – Humidifiers: A Perfect Pathogen Breeding Ground10:46 – Cleaning Between Rounds: Veg vs Flower Rooms12:05 – Diagnosing Biological vs Mineral Blockages13:14 – Sampling and Mapping Out Contamination Sources14:00 – Environmental Triggers: VOCs, Leaks, and Construction Materials15:00 – Why We Built the Front Row Certified Tech Training16:00 – How Support from Our Team Helps Commercial Clients

Tyler Simmons (Technical Expert at Front Row Ag) and Egan O'Keefe (Co-Founder of Front Row Ag and Director of Cultivation at Story) dive deep into the critical aspects of optimizing Controlled Environment Agriculture (CEA) cultivation. They explore the intricacies of plant spacing, canopy density, and trellising techniques, providing valuable insights for growers looking to maximize yield and quality.Topics Covered:00:20 - Optimizing usable flower sites per cubic foot01:43 - Balancing plant size, veg time, and plant spacing02:24 - Issues with high planting density and large plants02:47 - Shade Avoidance Response04:04 - Balancing veg duration and plant spacing05:06 - The cubic canopy05:17 - Calculating veg time per square foot for crop rotation05:27 - Unique considerations for vertical facilities06:17 - Trellising and plant training during the stretch phase08:01 - Optimizing bench space utilization08:39 - Branch density and trellising techniques10:12 - Selective pruning and defoliation11:12 - Balancing trellising, plant spacing, and canopy density for maximum yield and quality11:44 - Consequences of improper planting densityTyler and Egan offer practical advice and rule-of-thumb calculations to help growers achieve the perfect balance in their cultivation practices. They discuss the importance of considering factors such as strain vigor, growth rates, and facility design when developing an optimization strategy.Follow so you never miss out on expert insights from the Front Row Ag team!

Front Row account manager and crop advisor Mike Harnos and technical expert Tyler Simmons break down one of the hidden threats in controlled environment agriculture: algae in water systems.In this video, they cover:Why algae doesn’t always show up on water testsHow algae blooms and biofilms clog emittersThe impact of algae on pH stability and water absorptionBest practices for tank cleaning and sanitizationProven strategies to keep irrigation systems free of algae over the long termIf you’re running a commercial facility, this discussion highlights critical steps to protect your fertigation system and prevent costly downtime.📌 Want to trial the Front Row Ag A/B/Bloom fertilizer system in your facility? Apply for a commercial account today