Plant Health Testing From Arvum

Grow Diagnostics

The purpose of plant testing is to optimize the health of the plant throughout its growth cycle by using rapid analytical testing results to make data driven decisions. Healthy plants with proper nutrition will lead to greater yields and higher quality.

Plant Testing

Soil Testing

Water Testing

Quick Process

Easy Step-by-Step

From label to lab and back again—get actionable plant health data and a free consultation in just a couple simple steps.

View the Sampling Instructions & Chain of Custody Form here

Chain of Custody Form

Label

Fill out your test pouch
with a marker

Sample

Pick, spray, shake
5-10 leaves

Send

Place leaves in
pouch and send

Results

Fast, Reliable Analysis
and a Consultation with a Cultivation Advisor

About Arvum

Trusted Analytical Experts

Arvum is a leading cannabis science partner, delivering rigorous plant health testing and actionable cultivation insights to help you optimize yield, quality, and compliance.

Arvum Plant Testing

Analytes Tested For Primary, Secondary & Micro Nutrients

Primary Nutrients: Nitrogen, Phosphorus, Potassium

Secondary Nutrients: Calcium, Magnesium, Sulfur

Micro Nutrients: Manganese, Iron, Molybdenumn, Copper, Boron, Zinc

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Track Nutrient Levels

Track historical plant tissue and soil results on a harvest throughout it's life cycle

Identify Problems

Diagnose and remedy any plant health related issues

Optimize Your Nutrient Program

Dial in your nutrient program to increase quality and yield and decrease costs

When To Test

Maximize Yield & Quality.

To avoid costly issues, growers should consider plant health testing at key stages.

Early In The Season

Performing plant tissue and soil tests helps establish baselines for nutrient needs

Mid-Cycle

Run-off and nutrient water analysis are useful tools to ensure your dosing is accurate and prevent nutrient deficiencies.

If Disease Is Suspected

Targeted tests like Pythium, Fusarium, or Hop Latent Viroid can confirm infection early.

Before Harvest

Heavy metal testing ensures that crop material meets safety and compliance standards.

If you are thinking about plant health testing for your grow, consider the following. You may need testing if:

“The plants look healthy, but yields aren’t where we want them.”

“We're seeing inconsistent results, even with the same genetics.”

“Our plants seem to stall out in late flower.”

“We’ve been tweaking the fertigation recipe, but it’s still not dialed.”

“We had a great run last cycle, but this one is way off.”

“We’re noticing salt buildup or clogging in the lines.”

“We’re getting weird pH swings in the root zone.”

“The EC of our runoff is way higher than what we’re feeding.”

“We recently switched water sources.”

“We’re having trouble keeping plants consistent across zones.”

Testing Catalog

Labs Tests Details

We will ship the appropriate sample holder and accompanying instructions, along with a return label (if requested) for sending it back to our facility. Test results will be available within 2 to 3 business days, or 1 to 2 weeks, depending on the test, after which one of our Cultivation Advisors will contact you to discuss the next steps.

Plant Tissue Analysis

In the Field: Starting point for diagnostic testing. Can determine nutrient related issues.

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Soil Analysis

In the Field: Beginning of Season test for outdoor growers to help them determine fertilization strategy.

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Run Off Testing

In the Field: Check to see what Nutrients are present in run-off to make adjustments on fertilization program.

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Pythium ssp. Testing

Pythium ssp. is a water mold fungus that causes a variety of plant diseases, including damping-off, root rot, and cottony blight.

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Water Analysis

In the Field: A sample of Tap Water and RO Water can help us determine if RO System is functioning properly.

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Nutrient Water Analysis

In the Field: Check to see if nutrient batches are properly mixed.

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Heavy Metal Testing

In the Field: Check to see if there are unsafe levels of heavy metals that will not pass compliancy testing.

In the Field: Grow media testing to ensure there are not unsafe levels of heavy metals present that plants can absorb.

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Hop Latent Viroid (HLvd)

HLVd is a plant viroid that causes growth deficiencies and stunting/dudding of the plant.

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Fertilizer Analysis

In the Field: Checking to ensure fertilizer mix is within acceptable range.

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Fusarium ssp. Testing

Fusarium ssp. wilt is a soil-borne fungal disease that causes vascular wilt, root rot, foot and stem rot, leaf lesions, fruit rot, head blight in cereals and/or post-harvest decay.

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Testing Catalog

Plant Health Lab Tests

Our Lab reports test results within 2-3 business days of the sample arriving at our lab.

Title

Shop Arvum Plant Tests
Arvum Plant Tissue Analysis
Arvum Plant Testing Arvum Plant Tissue Analysis
$75.00
Arvum Soil Analysis
Arvum Plant Testing Arvum Soil Analysis
$125.00
Arvum Pythium ssp. Test
Arvum Plant Testing Arvum Pythium ssp. Test
$142.86
Arvum Water Analysis
Arvum Plant Testing Arvum Water Analysis
$100.00
Arvum Hop Latent Viroid Test
Arvum Plant Testing Arvum Hop Latent Viroid Test
$50.00
Arvum Heavy Metal Testing
Arvum Plant Testing Arvum Heavy Metal Testing
$125.00
Arvum Fertilizer Analysis
Arvum Plant Testing Arvum Fertilizer Analysis
$100.00
Arvum Nutrient Water Analysis
Arvum Plant Testing Arvum Nutrient Water Analysis
$100.00
Arvum Fusarium ssp. Test
Arvum Plant Testing Arvum Fusarium ssp. Test
$142.86
Arvum Run Off Testing
Arvum Plant Testing Arvum Run Off Testing
$100.00

Test Results

Consultation call with a Cultivation Advisor.

After you receive your results, expect a consultation call with a Cultivation Advisor who will walk you through the findings in detail. They will help explain what the results mean for the specific stage of the grow cycle, identify any nutrient imbalances, pathogen risks, or environmental concerns. The goal of the call is to turn lab insights into actionable next steps tailored to the grower’s unique operation.

Why Work With Us?

Proven Experience

Years of success with large-scale outdoor farms.

Expert Guidance Ongoing

Ongoing support to interpret results and optimize your grow to achieve maximum profitability potential.

Custom Solutions

Tailored recommendations to fit your operation parameters.

View All Arvum Tests

The purpose of Arvum is to optimize the health of the plant throughout its growth cycle by using rapid analytical testing results to make data driven decisions. Healthy plants with proper nutrition will lead to greater yields and higher quality.

Shop All Arvum