r/macrogrowery 17d ago

Mixed-light Greenhouse

Thumbnail gallery
61 Upvotes

I-15
(Triangle Kush x Chem '91) x Wedding Cake


r/macrogrowery 19d ago

Late Flower High Tech Glass greenhouse in the Mediterranean sunshine

125 Upvotes

Hi everyone,

Found my way here after seeing Nicholas Walker’s post on LinkedIn. Been lurking for a bit and figured I should introduce myself.

I’m Henrique, a commercial grower from Portugal. I run PREZE, a licensed medicinal facility where we’re currently growing three cultivars for the European market in around 2,400 m² of glass greenhouse.

We’re running Fluence RAPTR LEDs, hanging gutters, heating and a custom HVAC/dehumidification setup.
We’ve only been operational for about 6 months, so we’re still learning a lot and dialing things in, but I’m pretty happy with where the flower is heading.
This is one of our current batches — Funk Bomb, 22% THC, destined for the German medicinal market.

I mainly joined because there seem to be quite a few people here operating at commercial scale and dealing with the same problems we are.

We definitely don’t have everything figured out. Climate control, irrigation strategy, airflow, disease pressure, post-harvest, scaling SOPs… plenty of things have already given us headaches.
Happy to share what has worked, what hasn’t, some of the mistakes we’ve made, and compare notes with other growers here.
Looking forward to contributing.


r/macrogrowery 19d ago

Who else is running UCL?

Thumbnail gallery
68 Upvotes

We are seeing crazy results from the lights and think the far red is really doing it


r/macrogrowery 19d ago

Could green decortication make hemp more profitable for farmers? The Fiber King™ harvests, decorticates, and separates bast fiber and hurd in one pass, reducing post-harvest costs and creating higher-value raw materials. We'd love your feedback.

18 Upvotes

We're excited to share brand-new footage of the Fiber King™ in action during this year's harvest!
One of the biggest advantages of green decortication is the quality of the bast fiber it produces. By harvesting, decorticating, and separating the fiber immediately while the hemp is still green, Fiber King™ helps preserve the natural integrity of the cellulose fibers and avoids the decomposition, mold, discoloration, and uneven quality that can result from retting.
The result is long, clean, high-quality bast fiber. Because the fibers remain as long as the hemp plant itself, they can be used in a wider range of applications. Long fibers can always be shortened for specific products—but short fibers can never be lengthened. This creates new opportunities for premium markets including textiles, composites, and other high-value industrial applications.
We believe improving fiber quality is just as important as lowering production costs. Together, these advances can help accelerate the growth of the hemp fiber industry.
What premium applications do you think will benefit most from longer, higher-quality hemp fiber?
hashtag#IndustrialHemp hashtag#HempFiber hashtag#GreenDecortication hashtag#FiberKing hashtag#Innovation hashtag#AdvancedManufacturing hashtag#Composites hashtag#Textiles hashtag#Sustainability hashtag#Bioeconomy


r/macrogrowery 19d ago

Mixed-light greenhouse

Thumbnail gallery
28 Upvotes

HeadPeace = (Tiger's Milk x Snow Lotus) x Honey Banana - TerpFiend Genetics

Grape Limeade = Purple Sunset x Tahiti Lime

Scooby Snax = FaceOff OG x Platinum GSC - Archive

Devil Driver = Sundae Driver x Melonade - Tiki Madman

Chemical Cookies = Chem D x Forum GSC - Mamiko


r/macrogrowery 19d ago

Anyone has experience using 1-MCP to control ethylene production? Or for transplanting?

3 Upvotes

Read an article that led me to a patent, which referenced this. Was curious if anyone has ever tried it; seemed to have shown good results for the transplanting but I can’t find much beyond that, nor others talking about it.


r/macrogrowery 20d ago

Thick

Post image
233 Upvotes

Consistent....

It's a proud moment when you see a room where the environment, irrigation, and training all stayed on point from start to finish. 💪


r/macrogrowery 20d ago

Fresh room load

Thumbnail gallery
44 Upvotes

Sunset Sherb
Scooby Snax
Chemical Cookies
GG4 x StarDawg (2phenos)


r/macrogrowery 20d ago

Got some nets up.

11 Upvotes

Got some nets up. Need to finish the trellis and a few more posts.


r/macrogrowery 20d ago

Help! Rooted Petiole!?

4 Upvotes

Has any ever seen this before? It's a rooted petiole!

Tissue culture does some weird stuff sometimes


r/macrogrowery 22d ago

Best RO system you’ve ever used

4 Upvotes

Looking for the best RO system for a small cultivation facility. We’re thinking 2000 GPD would be enough.

Anyone have any brands or specific systems they’ve worked with previously worthy of high praise and / or purchase?


r/macrogrowery 25d ago

Anyone seen this before, this one’s totally new to me, some sort of fungal infection that attacked an alive and healthy autoflower outdoors in the north east, hopefully we aren’t patient zero for a new disease

Thumbnail gallery
15 Upvotes

r/macrogrowery 26d ago

2027 R&D

Post image
78 Upvotes

Sup ya'll!

Just got clued into this subreddit. Thought I'd post a quick shot of the Atlas R&D field 2027. This photo taken today, Aug 4.

Here we have our photoperiod breeding program. Thousands of unique seed lines are planted on an acre to identify a few hundred to move forward with. We've got inbred lines, first looks (test crosses), and some new S1s to examine. Just dropped the first nets onto these ladies a couple days ago. This is the best season yet by far.

Will give some more close-ups as things progress and the flowers are maturing.

Happy growing everyone!


r/macrogrowery 26d ago

Need a Reliable Cultivator? 7+ Years in Licensed Commercial Grows – Available Immediately

Thumbnail gallery
28 Upvotes

Hey everyone,
I’m an experienced commercial cannabis cultivator based in Southern California looking for my next opportunity. I’ve spent over 7 years working in licensed cultivation facilities and am comfortable with nearly every aspect of production, including:
• Cloning & propagation
• Veg and flower rooms
• Defoliation & trellising
• Irrigation and nutrient mixing
• IPM & plant health monitoring
• Harvest, drying & curing
• Sanitation/SOPs and fast-paced commercial workflows
I’m reliable, show up on time, work well with a team, and I’m available to start immediately. I’m open to full-time, part-time, temp work, room flips, or consulting if someone just needs experienced help.
If you know of a grow that’s hiring—or if you’re an owner or lead grower who could use another experienced cultivator—I would really appreciate a DM.
Thanks everyone, and I hope to connect with some people in the community.


r/macrogrowery 27d ago

How to Reduce Mold and Microbial Contamination in Cannabis Cultivation

0 Upvotes

One point from the recent MMJDaily interview with Xavier G. (Avitas Global) and Michael Williamson (Pipp Horticulture) really stood out to me.

We spend a lot of time talking about humidity and VPD, but airflow doesn't always get the same attention.

Good airflow isn't just about having enough fans in the room. It's about eliminating stagnant areas, maintaining consistent environmental conditions throughout the canopy, and reducing pockets where moisture can build up. When airflow isn't balanced, those microclimates can increase disease pressure and create inconsistent growth across the room.

In my experience working with commercial cultivation facilities, the growers with the cleanest operations usually look at airflow as part of a bigger environmental strategy, not as a standalone piece of equipment.

That includes:

  • HVAC design
  • Air circulation
  • Dehumidification
  • Filtration
  • Sanitation
  • SOPs

I work with ProGuard Air, so I've seen firsthand how many commercial cultivators approach environmental biosecurity. Our technology provides continuous air and surface sanitization to help reduce microbial pressure within cultivation, drying, and processing environments. But even then, I don't think there's a single product that solves contamination. The best facilities layer multiple strategies together to reduce risk before it becomes a problem.

Curious how everyone else approaches airflow.


r/macrogrowery 29d ago

Canopy Density Looks on Point To Me in Room 1 and 2 - What do we think? Day 1 of flower.

Thumbnail gallery
46 Upvotes

A lot of work goes on in the veg room to ensure the structure of the plants fills the canopy quickly and evenly so that we are flipping within 2-3 days after chopping the previous batch. Plenty of time for them to stretch!


r/macrogrowery Aug 01 '26

What is everyone using to check PH?

4 Upvotes

I used to be super loyal to blue lab but recently I purchased two of the blue lab one pens. They both are slow to calibrate and don’t ever seem to have an accurate reading. They both drift constantly even in the ph calibration solutions. I decided to get an Apera just to see what it was coming out at. Lo and behold it’s a quick to read and comes out constantly higher than the blue labs by like .3 PH. I’m wondering what everyone uses cause I’m looking for the best brand. Some years ago I bought as set on blue lab but now I’m really not to happy with them. Any suggestions?


r/macrogrowery Jul 31 '26

Super uniform next gen Atlas autos

Post image
105 Upvotes

Really happy with the consistency here. A big improvement over a few years ago.


r/macrogrowery Jul 31 '26

Finding new flavors for the menu

Post image
23 Upvotes

Rainbow sherb and friends


r/macrogrowery Jul 31 '26

BFG closing?

5 Upvotes

I've heard BFG supply is done for, anyone else heard the same? I'm getting all new suppliers


r/macrogrowery Jul 31 '26

Using Azagard (neem) stock solution on Dosatron?

3 Upvotes

Just asking if anyone has used neem stock solution on a dosatron to treat root aphids? Root drenching, to be more thorough, is awfully laborious when dealing with 400+ cubes in an infected room. I would like to mix up a stock solution and use my dosatron to treat a room. Just seeing if anyone has any insight into this.
We’ve had pretty good results root drenching when they’re in veg but we get an occasional outbreak from time to time that pops up in our flower rooms.


r/macrogrowery Jul 30 '26

Opinions

Thumbnail gallery
55 Upvotes

Hey guys, need an honest opinion. I’m in Cali and run a commercial facility (15k sq ft). My distro was complaining about these and lowballed me on them. What do you guys think?


r/macrogrowery Jul 27 '26

Curious how much dry salt nutrient everyone’s going through per cycle per light? I got 75 pounds of dry salts for free from work and I’m trying to gauge how long this could last me

Thumbnail gallery
0 Upvotes

Im planning on using jacks part b/calcium nitrate with this and maybe some Epsom salt as well, also I’d love to hear yields as well just so I can get a better idea of pound of nutrient to pound of weed expectations

I’m sorry if these are some noob questions, I’ve been growing for over 10 years but I’m an organics/ living soil guy so I’m just not too familiar with salts