High on Home Grown, The Cannabis Podcast

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...

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

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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...

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 Ca...

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...

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...

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. Sm...

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...

Here are the news stories from this weeks show:

Macky: Who Really Benefits from Britain’s Medical Cannabis System? 

Smee: Police officer's sense of smell sniffs out force's 'biggest ever cannabis farm' in Mansfield | ITV News Calendar 

Dr.Margaret: Cracking open a can of cannabis — America's new pastime - Canadian Affairs 

Billy: Strain Review - Greyscales - Medical cannabis quality control.

John: Marijuana's 'Entourage Effect' Varies By Terpene And Cannabinoid Receptor, New Study Suggests

This week we take a closer look at Britain's medical cannabis system...

It's time for another Listener Mail episode, and this week the High on Home Grown community has sent in another fantastic mix of growing questions, cannabis science, and a few fun topics to keep the conversation flowing.

We start by discussing how to manage high temperatures in the grow room, what excessive heat does to cannabis plants during both veg and flower, and the best ways to keep your environment under control during the hottest months of the year. We also break down the different types of cannabis seeds, explaining feminised seeds, hermaphrodites, S1s, R1s...

In this episode, I sit down with Rhaukeem Connor, owner of Diamond Tree Dispensary in New York, for a wide-ranging conversation about cannabis, business, politics, and the journey that led him to where he is today.

Rhaukeem shares his personal history with cannabis, including his early experiences, previous run-ins with the law, and how those experiences shaped his views on prohibition and legalisation. We also dive into what it's really like to own and operate a licensed dispensary in New York, discussing the regulations, challenges, and opportunities that come with running a cannabis business in one of...

This week on High on Home Grown, we cover some of the biggest cannabis and drug policy stories from around the world, along with a brutally honest review of UK medical cannabis.

Macky: Sent in by Lob Barmey: Irish committee recommends decriminalisation of all drug possession for personal use - BBC News 

Smee: Father says NHS approval of cannabis based-medicine for epilepsy is 'nothing special' | LBC

Dr.Margaret:  DEA's youMarijuana Rescheduling Hearing Includes The Wrong Voices (Op-Ed) 

Billy:  Will be doing a news report on ‘Medical Cannabis’  and a strain review with a ra...

It's Listener Mail time again, and this week the High on Home Grown community keeps the questions coming, covering everything from grow room troubleshooting to podcast ideas, with plenty of laughs in between!

We kick things off by discussing whether LED grow lights really cause calcium and magnesium deficiencies, or if there's more to the story than growers often realise. We also answer questions about transplanting autoflowers, when (or if!) it's worth doing, and the best timing if you decide to give it a try.

The panel also chats about electrical safety in the grow...

Here are the news stories we covered in thi weeks show:

Macky: Border Force secures its largest ever cannabis seizure - GOV.UK 

Smee: Legalized Cannabis Does Not Increase Consumption - Neuroscience News 

Dr.Margaret:  Scientists found a cannabis compound that relieves pain without the high | ScienceDaily 

John: Supreme Court rules government can’t restrict gun rights for casual drug use

This week we discuss the UK's largest-ever cannabis seizure, examining what it means for enforcement efforts and whether major busts like this have any lasting impact on the cannab...

It's time for another Listener Mail episode, where the High on Home Grown community brings the questions and the panel does its best to provide the answers!

This week we dive into one of the most dreaded topics for growers: powdery mildew, botrytis, and other plant diseases. We discuss how to spot the early warning signs, what conditions allow these problems to thrive, and the steps growers can take to prevent them before they become a crop-ending disaster.

We also answer a fun question about the origin of John's famous "hoooly!" catchphrase, explore why cannabis...

This week on High on Home Grown, we cover a wide range of stories spanning health, policy, hemp innovation, and the ongoing battle for cannabis seed rights.

Macky: Using cannabis for sleep isn't harmless – it can trap people in a cycle of dependency 

Smee: UK Medical Cannabis Specialists Discuss the Rise of CBG | Releaf UK 

Dr.Margaret: Cannabis foods and flowers face crackdown wave in Europe | Euractiv Sent in by Lob Barmey

Billy:   Own Story - Can Cornwall Grow Its Own Plastic

John: Is this one ok John? Keep Seeds...

It's time for another Listener Mail episode, and as always, the High on Home Grown community brings the questions that get us thinking!

This week we discuss the relationship between compost and pest management, and whether using homemade compost indoors carries the same risks as bringing pests in from the garden. We also dive into outdoor growing, covering the common pests, diseases, and warning signs growers should be keeping an eye out for throughout the season, from powdery mildew and honeydew to insects and environmental issues.

We answer questions about reusing Grove-style curing bags, how...

In this episode, we welcome Boudica Seeds back to the show to tackle one of the most debated topics in cannabis culture: black ash vs white ash.

Does black ash really mean your cannabis is poor quality? Is white ash a sign of perfectly grown flower? Or have growers and smokers been chasing a myth for years?

We dive deep into the science and the speculation, discussing what actually affects the way a joint burns. From cultivation practices and nutrient management to drying, curing, moisture content, and rolling techniques, we break down the factors that...

This week on High on Home Grown, we cover a mix of international cannabis law, medical research, and major policy developments that could shape the future of the industry.

Macky:  Australian woman faces jail time over alleged cannabis vape liquid in Indonesia - ABC News 

Smee: Medical Cannabis Driving Rules UK | 2026 Guide

Dr.Margaret: Vertanical Secures FDA Breakthrough Designation for Cannabis-Based Pain Drug 

Billy: In oncological research, A new meta-analysis has systematically evaluated that anti-tumor effects are observed with THC/CBD use. 

John: White House Pushes Congress To Keep Hemp...

This week marks the start of our summer Listener Mail series, where we answer your questions, share our opinions, and dive into some of the topics that matter most to home growers and cannabis enthusiasts.

In this episode, we discuss drug driving tests, how they work, the challenges they present for cannabis consumers, and some practical considerations for staying on the right side of the law. We also share our thoughts on the current testing system and the issues many medical and recreational consumers have with it.

We then move on to growing, answering questions...

In this episode, Macky sits down with Dan from Legal Growers UK for an in-depth discussion about home cultivation, cannabis law, and the future of reform in the UK.

Dan joins us to explain the goals of Legal Growers UK, the arguments for allowing adults to grow their own plants, and some of the biggest misconceptions surrounding home cultivation. We explore the current legal landscape, discuss the challenges facing campaigners, and examine how home growing could fit into a sensible regulatory framework.

Along the way, we tackle some difficult questions, challenge assumptions from both sides...

Here are the stories we covered in this weeks show:

Macky:  How paranoia led to the death of a 93-year-old in Desborough - BBC News 

Smee: 98% of UK mental health patients report improvement from medical cannabis - leafie

Three jailed after former nightclub converted into cannabis farm - BBC News 

Dr.Margaret:  Japan Health Ministry Announces Ban On Cannabinol 

John: New Changes To ATF Gun Form Put Medical Marijuana Patients On The Path To Restored Second Amendment Rights (Op-Ed)

We start off by covering a story...

In this week’s episode, we wrap up Season 2 of Grow Guides with a relaxed but important conversation about the reality of growing cannabis at home, and why it’s nowhere near as complicated as many people think.

We give a simple overview of the growing process from seed to harvest, touching on the key stages growers need to understand while also reminding listeners that perfection is not required to grow good cannabis. Too many new growers get overwhelmed by information online, worrying about every little detail before they’ve even planted a seed.

The truth...

This week we spoke with Dan, a cannabis activist from the UK. Dan has some interesting ideas that he believes could help push the UK government towards legalising cannabis for recreational use. He is part of an organisation called Legal Grower UK, and we chat with him about his ideas, what he thinks is going to work, what he sees for the future of cannabis in the UK, and much more.

We also have a special livestream coming up with Dan! It will take place on Wednesday 3rd June at 10pm UK time, live on our YouTube...

Here are the stories we cover in this weeks show:

Macky:  Warnings the medicinal cannabis industry could turn deadly without tougher regulation | ITV News Channel 

Smee: Police defend decision to dismantle another Leicester cannabis grow | Leicestershire Live 

Dr.Margaret: Marijuana Can Play A Role In Combating Obesity, Contrary To Stereotypes About Lazy Stoners With The Munchies, New Federally Funded Study Suggests

Billy: UK Medical Cannabis Imports Hit 30 Tonnes as Canadian Producers Bypass European Processors 

John: Federal Judge Dismisses Anti-Marijuana Groups’ Lawsuit Challenging Medicare Hemp Coverage Program

We h...

In this week’s Listener Mail episode, we answer a huge range of questions from the amazing High on Home Grown community, covering everything from soil health and trichome production to dream grow setups and the future of cannabis laws in the USA.

We discuss compacted living soil and how to keep soil healthy throughout a grow, whether growers ever find that one “perfect strain” they’d be happy with forever, and what our ultimate no-budget dream grow rooms would look like. We also get into the possible implications of proposed cannabis seed restrictions in the US, and whet...

Here are the new stories we covered this week:

Macky:  Cannabis: it’s medicine if you’re rich enough – a crime if you’re not 

Smee: Navigating Medical Cannabis Access: A Family's Journey Through UK Prescribing Challenges - Hemp Gazette 

Billy:  Bedrocan announced the launch of Bedromed, a new range of products designed to offer its pharmaceutical grade cannabinoids in more modern forms of administration. 

John: CBD Holds Potential As An ‘Anticancer Agent’ For Dogs, New Scientific Review Concludes

We start off with John bringing us a story about how CBD can help...

In this week’s Grow Guides, we focus on how to rescue and recover damaged cannabis plants when things don’t go to plan.

We cover the most common types of plant damage growers run into, including broken branches, nutrient burn, light stress, deficiencies, heat damage, overwatering, and transplant shock. More importantly, we explain how to identify the real cause of the problem before making things worse by overreacting.

We also discuss recovery techniques, when plants can bounce back surprisingly well, and when it’s better to stop chasing perfection and simply let the plant heal n...

In this episode, we sit down with author Tom Sadira, creator of a unique cannabis-inspired sci-fi series that blends futuristic storytelling with cannabis culture, philosophy, and imagination. We talk about how Tom got started as a writer, where the inspiration for the series came from, and how cannabis has influenced his creative process and world building. The conversation moves through science fiction, culture, creativity, and the challenges of writing original stories in a crowded genre.

We of course also go on some tangents about "back in the day" and how movies used to have some crazy stuff...

In this weeks episode of cannabis news we cover the following stories:

Macky: New research raises concerns about safety of higher-THC medicinal cannabis products in Australia 

Smee: High Street mini-marts selling cocaine, cannabis and prescription drugs, BBC secret filming reveals 

Dr.Margaret: RCMP disrupts multi-million dollar cannabis distribution network 

Billy:   Cannabis MSOs sued in federal court over 'deceptive' medical marketing claims 

John: More Older Adults Are Using Marijuana As An Alternative To Pharmaceuticals, Federally Funded Study From American Medical Association Shows

We see more anti-cannabis propa...

In this week’s Grow Guides, we discuss one of the most common reasons people turn to medical cannabis, pain relief. We break down the different types of pain people use cannabis for, including chronic pain, inflammation, nerve pain, and muscle discomfort, and talk about how cannabinoids and terpenes may play a role in managing symptoms.

We also cover different consumption methods, from inhalation to edibles and oils, explaining how onset time, duration, and intensity can vary depending on how cannabis is used. We discuss strain selection, cannabinoid balance, dosing considerations, and why finding the right approach is...

In this week’s episode, we mix Grow Guides with a hands-on interview as we sit down with Boudica Seeds to break down how to make feminised seeds at home.

We go through the fundamentals of the process, including how feminisation works, the techniques used to reverse plants, and what to look out for when selecting the right genetics. Boudica Seeds shares practical advice from real breeding experience, explaining how to do it safely, effectively, and without overcomplicating things.

We also talk about common mistakes, stability concerns, and what separates good feminised seeds from unreliable on...

In this weeks cannabis news, we cover the following stories:

Macky: Durham teen arrested in Malaysia for cannabis offences | The Northern Echo 

Smee: Don’t toss cannabis leaves: Scientists found rare compounds with medical potential | ScienceDaily

Dr.Margaret: Cannabis users don't like pesticides: survey | the oz.

Billy: Patients Choose Medical cannabis instead of opioids:  

John: Trump administration move to reclassify cannabis sparks confusion 

We take a look at the rescheduling of cannabis in the USA now John is back, getting his insight and finding out why things are a...

In this week’s Grow Guides, we tackle a question that catches out growers at all levels, how much light is actually too much?

We break down what happens when plants are pushed beyond their limits, including light stress, bleaching, and stalled growth, and explain why more light doesn’t always mean more yield. It’s all about giving plants what they can actually use, not just blasting them with intensity.

We also cover key concepts like PPFD and DLI, how to recognise early warning signs of too much light, and practical ways to adjust your s...

In this episode, we sit down with the founder of Boudica Seeds, a brand new UK-based seed bank, to talk about what it takes to start a breeding company from the ground up. We discuss how the business came to life, the strains currently on offer, and the process behind creating stable, high-quality seeds. From selection and breeding techniques to the challenges of building a reputation in a competitive space, it’s a great insight into the world of modern seed production.

We also get into the bigger picture, talking about the current state of cannabis laws in...

In this weeks show we look at the following stories:

Macky: Trump administration reclassifies cannabis as less dangerous - BBC News 

Smee:  Glasgow influencer jailed for smuggling £150,000 of cannabis - BBC News 

Dr.Margaret: Study: NY cannabis packaging law did not reduce child ingestions 

Billy:  Cannabis Industry Council Releases Global Guide for Patients Travelling with Medical Cannabis 

We take a look at the big news coming out of the USA as the Trump admin may have finally rescheduled cannabis, but there is still more before we can finally say it is o...

In this week’s Grow Guides, episode 87, we take a deep dive into the evolution of autoflowering cannabis plants! From its some what "humble" beginnings to the high-quality genetics we see today.

We start with ruderalis and the origins of autoflowers, explaining how this unique subspecies made automatic flowering possible in the first place. Then we move into the early days of auto breeding, including the Lowryder era, where the first true autoflower strains began to emerge. From there, we explore the turning point in autoflower breeding, when dedicated breeders began refining genetics, improving quality, and changing how...

In this week’s interview we see the return of our good friend Bryan! Bryan has been working hard on his own business, Rubber Ducky Isopods, and joins us to share how it’s all going and how you could potentially start something similar yourself.

As always, we don’t just stick to one topic. We go off on a few tangents and get into all sorts, from business and mindset to parenting, philosophy, theology, and much more. It’s one of those laid-back sessions you can just sit back and vibe with.

So roll a few fa...

In this weeks news we cover the following news stories:

Macky: Trump rolls out Joe Rogan for White House psychedelics announcement and jokes he’d like some meds for anxiety | The Independent 

Smee:  First conviction secured against landlord enabling cannabis factories across multiple properties | Bedfordshire Police 

Dr.Margaret: High-Risk Behavior? What Your Patients Should Know About Cannabis and Diabetes

Billy: Welsh Lib Dems pass motion to protect medical cannabis patients - leafie 

John still isn't back yet as he is supporting his kid in volleyball tournaments, but he will be bac...

In this week’s Grow Guides, episode 86, we focus on one of the most important topics for any home grower, preventing disasters before they happen.

We break down the biggest risks growers face, starting with heatwaves and temperature spikes, and how quickly things can go wrong if your environment isn’t under control. We also cover power cuts and equipment failures, and why having a plan in place can be the difference between saving your crop and losing everything.

We dive into pest prevention, explaining why stopping infestations before they start is far easier than tryi...