In this week's interview, I sit down with Jackson Farmer, who runs a specialist DNA and sex-testing company for cannabis plants. We take a deep dive into the science behind cannabis sex testing, looking at how plant DNA can be analysed to determine sex at a much earlier stage than growers would normally be able to tell by looking at the plant.

Jackson explains how the testing process works, what growers can learn from their plant's genetics, and how DNA technology could potentially save growers time, space and resources when planning a crop. We also get into the increasingly discussed issue of HLVd (Hop Latent Viroid), what it is, why growers are concerned about it, and how testing can play a role in identifying problems.

But this isn't all cannabis science! We also take a few interesting detours into dog fostering, Jackson's experiences outside the cannabis industry, and plenty of other subjects along the way.

It's a fascinating conversation that brings together cannabis cultivation, genetics, modern DNA technology and a few unexpected tangents. Whether you're a home grower interested in the science behind your plants or simply curious about where cannabis testing technology is heading, there's plenty to get stuck into.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

In this week's episode of High on Home Grown, we take a look at some of the biggest cannabis stories from the UK and around the world, covering crime, medical research, changing regulations and the risks surrounding cannabis edibles.

Macky: Teen guilty of murdering Joshua Ingram over '£25 cannabis debt' – East Sussex | British Transport Police 

Smee: British woman who smuggled £512,000 worth of cannabis from Thailand posted about ‘grass’ before arrest | The Independent 

Billy:   Medical cannabis compound alleviates nightmares associated with PTSD 

John: New York legalizes cannabis sales at farmers' markets, pop-up events 

Margaret: Police issue warning about dangers of cannabis edibles after man stopped on M1

This week we discuss the tragic consequences that can surround the illegal cannabis market, from a murder reportedly linked to a tiny £25 debt to a huge international smuggling operation. We also look at some more positive developments, including promising research into cannabis compounds and PTSD, and New York's decision to allow licensed cannabis businesses to sell at farmers' markets and pop-up events.

Finally, we examine another warning about cannabis edibles and driving, discussing why edible cannabis can be particularly unpredictable and why understanding delayed effects is so important.

Another packed episode of cannabis news from across the UK, America and beyond.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

It's time for another Listener Mail episode, and this week the High on Home Grown community has delivered another brilliant mix of growing questions, thought-provoking discussions, and the usual off-the-rails conversations that make these episodes so much fun.

We kick things off by discussing what to do when you accidentally snap a branch during plant training, comparing different types of tape for repairs and whether breathable options offer any real advantages. We also explore whether supercropping autoflowers is worth the risk, and answer questions about lollipopping outdoor plants, looking at how outdoor training differs from growing indoors.

The panel also discusses whether over-dried cannabis loses potency, how drying conditions affect the final product, and whether experienced growers should be paying more attention to terpene development than trichome colour when deciding the perfect time to harvest. Along the way, we answer a few fun questions, including which fantasy character we'd most like to be, and tackle one of Margaret's famous thought experiments about what we'd do if we suddenly inherited £100 million.

To round off the episode, the conversation drifts into one of our favourite rabbit holes: space, the possibility of extraterrestrial life, and what might really be out there beyond our little blue planet.

As always, it's another relaxed episode packed with practical growing advice, cannabis science, philosophical tangents, and plenty of laughs with the High on Home Grown community.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

In this week's interview, I sit down with Thomas Gibson, the founder and CEO of Grand Master LED, to talk about one of the most important pieces of equipment in any indoor grow: the grow light.

Thomas shares the story behind Grand Master LED, explaining what inspired him to start the company and how it has grown into one of the most respected names in high-performance LED lighting. We discuss the latest developments in their lighting technology, take a look at some of their newest models, and talk about what growers can expect from the next generation of Grand Master LED products. We also get a sneak peek at the company's upcoming line of nutrients and the thinking behind expanding beyond lighting.

As the conversation unfolds, we venture away from cannabis growing and chat about fitness, health, and some of the sports injuries Thomas has picked up over the years. It's a relaxed, honest conversation covering entrepreneurship, innovation, personal challenges, and plenty of practical advice for growers looking to get the most out of their indoor gardens.

Whether you're interested in LED technology, growing better cannabis, or hearing the story behind a successful company in the industry, this is an interview you won't want to miss.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

This week on High on Home Grown, we cover another busy week of cannabis news, from major legal changes in the United States to public health warnings, promising medical research, and some controversial political statements.

Macky: Texas bans hemp-derived THC products, leaving smoke shop owners and customers with questions 

Smee: The risks of cannabis gummies with fake sweet packaging - BBC News 

Billy: A Cannabis Flavonoid Stopped Up to 99% of Cancer-Cell Growth in Lab Tests 

John: Marijuana Has 'Horrific Health Risks' And No Medical Value, Former Trump Attorney General Claims

This week we discuss Texas' decision to ban hemp-derived THC products, exploring what the new law means for businesses, consumers, and the wider hemp industry. We also examine the growing problem of cannabis gummies being sold in packaging that closely resembles popular sweets, and why this continues to raise concerns about child safety and responsible regulation.

Billy brings us an exciting piece of early-stage medical research looking at a cannabis flavonoid that showed remarkable anti-cancer activity in laboratory studies. While the findings are promising, we also discuss why it's important to distinguish between laboratory results and proven medical treatments. Finally, we take a closer look at former US Attorney General Bill Barr's claim that cannabis has "no medical value," comparing those comments with the growing body of scientific evidence and the experiences of patients around the world.

Another packed episode covering cannabis science, policy, medicine, and the stories making headlines across the globe.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

It's time for another Listener Mail episode, and this week the High on Home Grown community has sent in another brilliant mix of growing questions, cannabis myths, and a few completely random discussions that only Listener Mail can deliver!

We begin by helping a listener who's planning a brand-new grow room after moving house. We discuss the pros and cons of building a secure enclosure inside a garage, how to make it as smell-proof as possible, and the key things to consider when growing safely with young children around. We also dive into the best methods for long-term cannabis storage, including whether vacuum sealing is a good option and how to preserve your harvest for months, or even years.

The panel also tackles a common harvest question: can you dry your cannabis in the same tent you grew it in by simply turning off the lights? We discuss the ideal drying conditions, what to watch out for, and how to get the best possible cure. We also bust an old cannabis myth by asking whether Miracle-Gro really "sucks the THC" out of your plants, separating internet folklore from reality.

Of course, it wouldn't be Listener Mail without a few lighter moments. We compare cannabutter vs cannabis oil for making edibles, answer a couple of wonderfully ridiculous philosophical questions, and even try to make sense of one of Dave's mysterious text messages.

As always, it's another relaxed episode packed with practical growing advice, cannabis knowledge, community questions, and plenty of laughs along the way.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

This week on High on Home Grown, we bring you another round-up of the biggest cannabis stories from the UK and around the world, covering crime, medical cannabis, regulation, and the continuing evolution of legal markets.

Macky: Essex resident sentenced for importing 24 kilos of cannabis concealed in his vehicle 

Thai cannabis smuggler jailed for 12 months - National Crime Agency

Smee: NHS Trust Approves UK-First Inpatient Medical Cannabis Policy · CannabisHealth

Guernsey deputy calls for cannabis to be taxed 'like alcohol' - BBC News

Dr.Margaret: Report: Illegal cannabis diversion from Canada a growing problem in Europe 

Billy: Two Strain review/grinder report

This week we discuss two separate cannabis smuggling cases, examining the risks people continue to take despite increasingly sophisticated border enforcement. We also look at a landmark decision by an NHS Trust to approve the UK's first inpatient medical cannabis policy, a significant step forward for patient access within the healthcare system.

Smee also brings us a story from Guernsey, where calls are growing for cannabis to be regulated and taxed in a similar way to alcohol, echoing many of the arguments we've been making on the show for years. Dr. Margaret explores a new report warning that cannabis legally produced in Canada is increasingly finding its way onto Europe's illicit market, raising fresh questions about regulation and international trade. Billy rounds off the episode with two more strain reviews, sharing his thoughts on the latest flower he's been trying.

Another packed episode full of cannabis news, medical developments, policy discussions, and honest opinions from the High on Home Grown panel.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

It's another Listener Mail episode, and this week the High on Home Grown community has sent in another fantastic selection of questions covering everything from grow room science to keeping your harvest as discreet as possible.

We kick things off by tackling a question inspired by AI-generated growing advice: do cannabis plants breathe oxygen at night, and should you avoid watering before lights out? We separate fact from fiction and discuss how cannabis plants actually behave during their light and dark cycles. We also share practical tips for reducing the smell during trim jail, and explore the long-standing claim that classical music can help plants grow. Is there any science behind it, or is it simply another gardening myth?

The panel also discusses using the dry mode on modern air conditioners to control both temperature and humidity, whether it's a worthwhile option for indoor growers, and takes a closer look at nutrient mixing. We answer a question about CANNA's recommended feeding ratios, EC management, and whether diluting a correctly balanced nutrient solution is the best way to feed your plants.

Finally, we chat about what to do with cannabis roots after harvest, when it's time to replace your carbon filter if you're running high airflow through your tent, and plenty of the usual Listener Mail banter that makes these episodes so much fun.

As always, it's a relaxed conversation full of practical growing advice, cannabis science, community questions, and more than a few laughs along the way.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

In this week's interview, I sit down with Neil from Worm Hole Junction, a worm farmer, educator, and content creator from Canada who's on a mission to help more growers discover the benefits of vermiculture and living soil.

We chat about how Neil got started in worm farming, what inspired him to turn his passion into a business, and why worms are one of the most valuable tools any organic grower can have. From producing nutrient-rich worm castings to improving soil biology, Neil explains how a simple worm bin can transform the way you grow cannabis and other plants.

We also discuss the current state of the Canadian cannabis industry, how things have changed since legalisation, and the opportunities and challenges facing growers and businesses today. Along the way, we cover composting, sustainable growing practices, and plenty of practical advice for anyone thinking about starting their own worm farm at home.

Whether you're already growing in living soil or you're curious about making the switch, this is an informative and entertaining conversation packed with tips, insights, and inspiration from someone who's dedicated his career to building healthier soils.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

In this weeks cannabis news we discuss the following stories:

Macky: Cannabis smuggler knows most of his drugs mules 'will get caught' - BBC News 

Smee: Strain Review Roundup What Worth Smoking in July 2026

Dr.Margaret: Heavy marijuana smoking may increase cancer risk, researchers warn | ScienceDaily

This week we discuss a BBC report featuring a convicted cannabis smuggler who admits that many of the people recruited as drug mules are expected to get caught, raising questions about organised crime and the people being exploited to carry out these operations. Smee joins us with his latest strain roundup, highlighting what's been impressing him and what's worth checking out this month.

Dr. Margaret looks at new research investigating whether heavy, long-term cannabis use may be associated with an increased risk of certain cancers, and we discuss what the study actually found, its limitations, and why it's important to look beyond the headlines.

We also have an interesting conversation about the future of cannabis reform in the UK, following reports that Andy Burnham has reached out to Gary Youds and his team for advice on cannabis policy. Could this signal a serious shift in the conversation around legalisation if Burnham becomes Britain's next Prime Minister? We share our thoughts on what it could mean for patients, home growers, and the wider cannabis community.

Another episode packed with news, science, politics, and cannabis conversation from around the world.

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown

It's Listener Mail time once again, and this week's episode is packed with practical growing advice, community questions, and the usual dose of High on Home Grown banter!

We kick things off by discussing one of the most common indoor growing pests: fungus gnats. The panel shares their favourite methods for preventing and controlling infestations, including biological controls like beneficial nematodes, and how to stop these annoying little pests before they become a real problem.

We also dive into one of the biggest decisions new growers face: soil or coco? We compare the pros and cons of each medium, explain why coco often produces faster growth, and highlight the common mistakes growers make when switching from soil to coco for the first time.

The conversation then turns to late-flower stress techniques, discussing whether methods like extended darkness, drought stress, or ice water actually increase resin production, or if they're simply long-standing grower myths. We also answer a great question about how we'd each spend £300 on a beginner grow setup, sharing what we'd prioritise, where we'd save money, and what we'd avoid.

Finally, we tackle an important question about bringing a pollinated outdoor plant back indoors, explaining how long pollen remains viable and what precautions growers should take to avoid accidentally seeding the rest of their crop.

As always, it's another relaxed episode full of useful growing knowledge, community questions, plenty of laughs, and even a philosophical discussion about just how much wood a woodchuck could chuck...

🌐 Website: https://highonhomegrown.com
💬 Discord: https://discord.gg/sqYGkF4xyQ
📺 YouTube: https://www.youtube.com/highonhomegrown