How Høst Cannabis Grows 40+ Strains on One Feed Program with Rx Green’s Dry Fertilizers

In commercial cannabis, the margin between a good harvest and a great one usually comes down to what you can’t see. The substrate your clones root into. The fertilizer that carries them through veg and flower. The consistency of those products from one delivery to the next. When any of those variables shift, the ripple effects can compromise an entire batch, or, worse, a full harvest cycle across multiple rooms.

Høst Cannabis Co. knows this firsthand. Høst is a boutique cultivator and wholesaler in Denver, Colorado, that has been running a purpose-built 10,000 square-foot facility since 2018 and built its reputation as one of the city’s premier flower producers along the way. Their current wholesale relationships stretch back five-plus years, earned entirely on the strength of what comes out of their rooms and the affordability of their products in comparison to other artisan cannabis growers. In one of the most competitive cannabis markets in the country, that kind of loyalty doesn’t happen by accident.

It happens because of a relentless commitment to quality inputs. And for Høst, that commitment led them to Rx Green Technologies.

A row of flowering cannabis plants at Høst

Why Inputs Matter More Than Most Cultivators Realize

Ask any experienced grower what separates elite flower from average buds, and the answer doesn’t usually start with genetics. Genetics matter a lot, obviously, but they’re only as good as the environment and nutrition behind them. A championship caliber strain will underperform if it’s fed inconsistently, planted in an unreliable substrate, or forced to fight nutrient lockout because the EC was too high on day one.

This becomes especially apparent in commercial operations running diverse strain menus. When a facility is growing 10, 20, or, in Høst’s case, 40 or more active strains, the feeding program can’t be a moving target. Each strain has its own tendencies, sure. But the foundation (substrate quality and fertilizer performance) needs to be rock solid for operators to maintain quality and efficiency at scale.

The cannabis industry has largely accepted this principle in theory. In practice, though, many cultivators still tolerate inconsistency from their input suppliers because switching can be risky. The fertilizers and substrates you’re used to (with their own issues and vendors) is the devil you know, as the saying goes. But Høst’s story shows what happens when a cultivation team refuses to settle and actually finds a partner that delivers.

The Problems Høst Faced Before Switching to Rx Green

Before adopting Rx Green’s products, Høst first dealt with a frustrating cycle of substrate-related headaches. The coco coir they were sourcing from other suppliers suffered from significant batch-to-batch variation. One pallet might arrive at an acceptable moisture level while the next was either bone dry or soaking wet. That kind of inconsistency made it nearly impossible to standardize their feeding programs across a diverse strain menu.

Even more problematic was high EC in coco straight out of the bag from multiple brands. Elevated EC in coco means residual salts haven’t been properly washed or buffered, and those salts interfere with nutrient uptake during the most critical early stages of growth. For Høst, this meant extensive pre-wash cycles before they could even plant clones, adding labor, water usage, and time to every single grow cycle. Over months and quarters, the additional costs became too burdensome to ignore.

On top of the product quality issues, Høst’s supply chain itself was unreliable due to no fault of its own. Expired batches showed up on pallets. Product was clearly stored outdoors and arrived in unpredictable conditions. The team described the situation as a constant headache. For a quality-first operation growing dozens of strains simultaneously, this wasn’t just inconvenient. It was threatening the foundation of their entire business.

Why Fertilizer Is the Most Underrated Decision in Cannabis Cultivation

Genetics and environment tend to dominate conversations at industry events and on social media, but the choice of fertilizer program (in addition to substrate) is one of the most impactful decisions a cultivation team makes on all levels. It determines nutrient availability at every stage of growth, influences terpene development and cannabinoid expression, and directly affects operational efficiency through things like dissolution rates, pH stability, and line maintenance.

A poorly chosen fertilizer program creates cascading issues. Nutrient deficiencies show up as yellowing leaves alongside stunted growth. Poor dissolution clogs emitters, which leads to uneven feeding across the canopy, or requires that much extra work to remove the biofilm from them. Unstable pH forces constant manual adjustment, pulling labor away from higher-value tasks. Over time, these small inefficiencies compound into real losses in both quality and yield.

On the other hand, a well-designed fertilizer system simplifies everything. When nutrients dissolve cleanly, irrigation lines stay clear. When the formulation is balanced for cannabis specifically, pH buffering happens naturally in the root zone. When the product is consistent batch to batch, cultivators can develop a single feed program and trust it to perform across multiple strains and grow cycles.

That’s exactly the experience Høst has had with Rx Green’s three-part dry fertilizer system, and it’s worth looking at each component of the line to understand why.

Inside Rx Green’s Dry Fertilizer Line: What Makes It Different

Rx Green Technologies offers both dry and liquid fertilizer options, but the dry fertilizer program (the system Høst uses) has quietly become a go-to choice for commercial cultivators across the country looking for precision, cost efficiency, and simplicity. The line consists of three core products that work together to cover every stage of the cannabis plant life cycle.

Part A: The Foundation for Veg and Flower

Part A is a phosphorus, potassium, and magnesium-rich formulation designed to support protein synthesis, enzyme function, and metabolite production throughout the entire plant life cycle. It serves as the primary base nutrient, delivering the essential macro elements that cannabis plants demand in both vegetative growth and flowering. Part A stays in the feed program from clone to harvest, providing the nutritional backbone that keeps plants vigorous and healthy.

Part B: Complementary Nutrition for Vigorous Growth

Part B complements Part A with a blend of nitrogen, potassium, calcium, and magnesium. These elements are critical for structural development, cell wall integrity, and energy production within the plant. Used alongside Part A during both the vegetative and flowering stages, Part B ensures that plants receive a complete and balanced nutritional profile without requiring cultivators to source and mix a bunch of standalone supplements. 

PK: Targeted Support During Flower Development

When cannabis plants transition into flower, their nutritional demands shift significantly. PK (1-44-35) is formulated specifically for this stage, delivering concentrated phosphorus and potassium to support root development, resin production, and flower formation. Used alongside Part A and Part B during the flowering phase, PK gives plants the additional energy they need to produce dense, trichome-rich buds without overcomplicating the feed program. Using Part A, Part B, and PK in conjunction helps plants maximize resin and terpene expression from day one.

What ties the entire line together is its formulation philosophy. Every Rx Green fertilizer product was developed specifically for cannabis and tested on cannabis. The nutrient ratios, dissolution rates, and pH behavior of each product were validated through rigorous, multi-year research cycles that collect thousands of data points on real plants across multiple strains. These aren’t formulations borrowed from traditional agriculture and relabeled for the cannabis shelf. They’re purpose-built.

A close-up of a cannabis flower at Høst that is almost ready for harvest

What Høst Cannabis Experienced After Making the Switch

When Høst transitioned to Rx Green’s dry fertilizer system, the impact was immediate and tangible. Tyler Carr, General Manager at Høst Cannabis Co., put it simply: the team’s entire focus is on high-quality flower, and that starts with inputs. “Consistency,” he said, “is everything when you’re running 40+ strains, and Rx Green delivers that consistency every time.”

Here’s what actually changed in their day-to-day, and what could happen at your operation as well:

One Feed Program for 40+ Strains

According to Tyler, this is the most remarkable outcome. Høst now runs every single one of their 40+ active strains on the same feeding schedule. In most commercial operations, running that many cultivars requires constant tweaking; adjusting EC targets, modifying ratios, and managing multiple feed recipes for different genetic profiles. The fact that Rx Green’s dry fertilizer system performs consistently enough to eliminate that complexity is a massive operational efficiency win. It frees the cultivation team to focus on plant health, canopy management, and harvest quality instead of endlessly troubleshooting their nutrient program.

Zero Clogged Emitters

Clogged drip irrigation emitters are one of the most common and frustrating maintenance issues in commercial cannabis cultivation. When fertilizer doesn’t dissolve cleanly, mineral buildup along with biofilm accumulates in irrigation lines, leading to uneven watering, inconsistent nutrient delivery, and expensive system flushes. Since switching to Rx Green’s dry fertilizers, Høst hasn’t had a single clogged emitter. That’s a direct result of the product’s clean dissolution properties, which not all other fertilizer options can provide. 

No Nutrient Deficiency Issues

Across their entire garden, Høst reports zero yellowing and zero uptake problems since adopting Rx Green’s dry fertilizer program. That’s a significant claim for any operation, but especially for one running 40+ genetic varieties with different nutritional tendencies. The balanced formulation of Part A, Part B, and PK delivers a complete nutrient profile that cannabis plants can access efficiently, which means less corrective intervention and more uniform plant health throughout the entire canopy across multiple rooms.

Maximum Terpene Development

For Høst, terpene expression is a top priority. Their team views fertilizer as the key driver of terpene development, and they credit Rx Green’s dry fertilizer line with helping deliver the aromatic profiles their wholesale customers expect. In a market like Denver, where consumers are increasingly educated about terpenes and their relationships to effect and flavor, producing flower with rich, distinctive terpene profiles is a real competitive advantage.

A Set It and Monitor Approach

Tyler and his team describe Rx Green’s dry fertilizer system as simple and effective. Once the EC is dialed in, it runs predictably, and the runoff pH confirms that the coco substrate is buffering correctly. This kind of reliability turns nutrient management from a daily headache into a straightforward monitoring task, freeing cultivation staff to focus on higher-value activities like pheno hunting, managing environmental controls, and optimizing harvest timing.

A full room of flowering cannabis plants at Høst preparing for harvest

The Role of Clean Coco in the Full Picture

While Høst’s story centers on Rx Green’s fertilizers, it’s important to note that their results are built on a complete system. Alongside the dry fertilizer line, Høst also adopted Rx Green’s loose Clean Coco substrate, and the combination of the two products working together is a big part of why everything clicks.

The loose coco arrives at a consistent 26 to 28% moisture content. It’s aerated, well-blended, and uniform from the top to the bottom of every pallet. The low EC out of the bag means clones go into a clean substrate without the extensive pre-wash cycles that other coco products demand. Strong hydration properties make preparation fast and predictable, and the substrate is easy to scoop, fill, and work with on the production floor.

Most importantly, the coco’s consistency is so reliable that Høst can run every strain on the same feeding schedule, which ties directly back to the fertilizer program. When the substrate and the fertilizer are both performing predictably, cultivators gain the confidence to simplify their processes and trust their system. That’s a powerful operational advantage in an industry where complexity tends to be the default and requires skilled labor to manage it effectively. 

Rx Green’s coco is thoroughly cleaned, buffered with calcium and magnesium nitrates, and third-party tested for pH, EC, mineral content, heavy metals, and microbials (in addition to five internal quality control tests along the way). If a batch doesn’t pass every testing measure, it doesn’t ship. That level of quality control is exactly what commercial operators need from their substrate supplier, and it’s a standard that Høst struggled to find before making the switch.

Research-Backed Formulations: Why It Matters for Your Operation

One of the things that sets Rx Green Technologies apart from other cultivation supply companies is the depth of their product research. Rx Green conducts cannabis-specific product development on live plants at all stages across numerous cultivars and environments. That work equates to substrate, fertilizer, and supplement solutions that have gone through multiple iterations before dialing in and releasing products that work best in real-world cannabis cultivation systems. 

This matters because the cannabis plant has unique nutritional requirements that don’t always line up with traditional agricultural inputs. Products formulated for tomatoes or peppers and then marketed to cannabis growers can miss critical nutrient ratios or dissolution characteristics that affect performance in coco-based, drain-to-waste systems under tight crop steering. Rx Green’s formulations were designed from the ground up for cannabis, tested on cannabis, and refined based on data from cannabis. Not borrowed from another crop and slapped with a new label.

For commercial operators evaluating fertilizer options, that research-backed approach translates into practical benefits: predictable pH behavior, clean dissolution, balanced nutrient ratios, and formulations validated through published research studies. It’s the kind of confidence that allows a team like Høst to run one feed program for 40+ strains and know it’s going to work.

Broader Lessons for Cannabis Cultivators Evaluating Their Fertilizer Program

Høst’s experience highlights several principles that any cannabis cultivator, whether you’re running a single-room craft operation or a multi-state enterprise, can apply when evaluating their own fertilizer program.

#1 Consistency is non-negotiable. 

If your fertilizer or substrate supplier delivers products with batch-to-batch variation, you’re building your operation on an unstable foundation. Every adjustment you make to compensate for inconsistent inputs is labor, time, and risk that could be eliminated by choosing a supplier that treats quality control as a requirement rather than an aspiration.

#2 Simplicity is a competitive advantage. 

The ability to run one feed program across an entire diverse strain menu isn’t just convenient; it’s a strategic advantage. It reduces training requirements for new staff, minimizes the risk of human error, and allows the cultivation team to focus on optimizing outcomes rather than troubleshooting problems. If your current nutrient system requires constant tweaking, it’s worth asking whether the product is working for you…or against you.

#3 Clean dissolution matters more than you think. 

Clogged emitters might seem like a minor nuisance, but the cumulative cost of uneven feeding, system maintenance, and replacement parts adds up fast. A fertilizer that dissolves cleanly isn’t a luxury. It’s an operational necessity, especially as cultivation facilities scale up and irrigation systems become more complex.

#4 Terpenes are driven by inputs. 

In an increasingly competitive market where consumers shop by nose as much as by THC percentage, terpene expression is a differentiator. Høst’s team credits their fertilizer program as the key driver of terpene development. If your current nutrient line isn’t supporting the aromatic profiles your customers expect – that’s a direct impact on your brand and your revenue.

#5 Choose products designed for cannabis. 

The cannabis plant has specific nutritional needs that differ from those of other crops. Fertilizers formulated and tested specifically on cannabis are far more likely to deliver the balanced, predictable performance that commercial operations require than generic agricultural products repurposed for the industry.

Dry or Liquid: Choosing the Right Rx Green Fertilizer Format for Your Grow

Høst chose dry fertilizers, but Rx Green Technologies also offers a comprehensive liquid fertilizer line for operations that prefer that format. The decision between dry and liquid typically comes down to operational preferences, facility size, and existing infrastructure.

Dry fertilizers tend to be more cost-effective at scale, have a longer shelf life, and require less storage space. They do need to be dissolved before application, which adds a step to the mixing process, but many commercial growers find that the cost savings and performance benefits make that trade-off well worth it.

Liquid fertilizers offer the convenience of pre-mixed formulations and can be easier to integrate with certain automated fertigation systems. Rx Green’s liquid line, including Grow 2.0 A&B, Bloom 2.0 A&B, Bulk 2.0 PK Booster, and E-Plus 2.0, has been recently updated based on grower feedback to address flow optimization and ensure clean performance through irrigation systems. And, unlike many liquid nutrient programs, Rx Green’s are created around proprietary blends meant for suspension in water, not just dissolving the standard dry fertilizer in water and passing the cost of shipping the water on to you. 

Regardless of format, Rx Green’s underlying commitment is the same: formulations developed for cannabis, tested on cannabis, and backed by real research data.

Quality Flower Starts with Quality Inputs

Høst Cannabis Co.’s journey from struggling with inconsistent substrates and unreliable suppliers to running one streamlined feed program across many strains isn’t a story about magic. It’s a story about choosing the right foundational cultivation inputs. By partnering with Rx Green Technologies, Høst eliminated variability from their inputs, simplified their operation, and doubled down on what they do best: growing premium flower in one of the most demanding markets in the country.

Their results speak for themselves: More than two years on Rx Green’s dry fertilizer system. Zero clogged emitters. Zero nutrient deficiency issues. And a terpene profile that keeps wholesale customers coming back, harvest after harvest. For any cultivator evaluating their current fertilizer program, Høst’s experience is worth a serious look.

Because in commercial cannabis, the inputs you choose today determine the flower you harvest tomorrow.

About Høst Cannabis Co.

Høst Cannabis Co. is a boutique cultivator and wholesaler based in Denver, Colorado, operating out of a purpose-built 10,000 square foot facility. Since 2018, Høst has established itself as one of Denver’s most respected flower producers, running 40+ active strains and building wholesale relationships that stretch back more than five years, all earned on the quality of their product. Led by General Manager Tyler Carr, the Høst team is committed to a quality-first philosophy where every decision, from substrate to fertilizer to pest management, is made with one goal in mind: producing the best possible flower at a fair price. Their consistency and craft level attention to detail have made them a trusted name in one of the most competitive cannabis markets in the world.

Interested in learning how Rx Green Technologies can simplify your cultivation and improve your results? Contact the Rx Green team to get started.