A question from a listener is one you may be thinking about while you’re in the garden: why are my tomato leaves turning brown?Possibilities include shaded older leaves; tomato russet mites; whiteflies; aphids; root knot nematodes; fusarium wilt; verticillium wilt; late blight; powdery mildew. But in most of those instances, the tomatoes themselves will show abnormalities. In this case, the tomatoes were perfect.  America’s favorite retired college horticulture professor, Debbie Flower, tackles this one. In the middle of that chat, Debbie mentions a use for old potting soil, just in case that is the culprit: making a hypertufa pot. We touched on that topic a couple of months ago, but it was buried inside another tomato question, so  you may have missed it. So, here it is again, one use for questionable, old potting soil:  making your own  hypertufa pot. Debbie explains.We’re podcasting from Barking Dog Studios here in the beautiful Abutilon Jungle in Suburban Purgatory. It’s the Garden Basics with Farmer Fred podcast, brought to you today by Smart Pots and Dave Wilson Nursery. And we will do it all in under 30 minutes. Let’s go!Pictured: Brown Tomato Leaves Surround a Healthy TomatoPrevious episodes, links, product information, topic search and transcripts at the new home site for Garden Basics with Farmer Fred, GardenBasics.net. Transcripts and episode chapters also available at BuzzsproutLinks: Subscribe to the free, Beyond the Garden Basics Newsletter https://gardenbasics.substack.com Smart Pots https://smartpots.com/fred/ Dave Wilson Nursery https://www.davewilson.com/home-garden/Hypertufa MoldsHypertufa Pots (Video)Got a garden question? • Leave an audio question without making a phone call via Speakpipe, at https://www.speakpipe.com/gardenbasics• Call or text us the question: 916-292-8964. • Fill out the contact box at GardenBasics.net• E-mail: fred@farmerfred.com All About Farmer Fred: The GardenBasics.net websiteThe Garden Basics with Farmer Fred Newsletter, Beyond the Basics https://gardenbasics.substack.comFarmer Fred website: http://farmerfred.com Daily Garden tips and snark on Twitter The Farmer Fred Rant! Blog Facebook:  "Get Growing with Farmer Fred" Instagram: farmerfredhoffman Farmer Fred Garden Minute Videos on YouTube As an Amazon Associate, I earn from qualifying purchases from possible links mentioned here.And thank you for listening.The Proffitt PodcastThe podcast that shows you tips & strategies to create content with confidence!Listen on: Apple Podcasts   Spotify