Just Grow Something | Evidence-Based Home Gardening

Just Grow Something | Evidence-Based Home Gardening

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Grow a better vegetable garden, whether you're a seasoned gardener or have never grown a thing in your life. Karin helps home gardeners learn to grow their own food using evidence-based techniques and research. She talks all about specific plants, pests, diseases, soil and plant health, mulch, garden planning, and more. It's not just the "how" but also the "why" that makes us better. The goal? For everyone to know how to grow their own food no matter what sized space they have or their...
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Episode List

Hardening Off Homegrown AND Storebought Seedlings - Ep. 291

Mar 10th, 2026 8:00 AM

Hardening off is the difference between sturdy transplants that take off fast and seedlings that stall, scorch, or collapse after planting.Today on Just Grow Something, you’ll learn what to do indoors before hardening off, a simple step-by-step hardening-off schedule (including temperature guidelines, shade vs. sun, wind protection, and watering adjustments), and what to watch for when you transplant.We’ll also cover the “mystery variable” of purchased seedlings and how to treat garden-center starts if you’re not sure they’ve been acclimated. Then, in the second half, we’ll talk about how the process changes when you’re using a greenhouse, cold frame, or high tunnel and why protected structures can help without eliminating the need to transition plants carefully.Let’s dig in!Resources:University of Maryland Extension — Hardening Off Vegetable Seedlings for the Home Garden: https://extension.umd.edu/resource/hardening-vegetable-seedlings-home-garden/NC State Extension Gardener Handbook — Season Extenders and Greenhouses: https://content.ces.ncsu.edu/extension-gardener-handbook/appendix-e-season-extenders-and-greenhousesIowa State University Extension — All about Cold Frames: https://www.extension.iastate.edu/news/yard-and-garden-all-about-cold-framesJust Grow Something: https://justgrowsomething.comGardening Courses: https://justgrowsomething.com/coursesJust Grow Something Merch and Downloads: https://justgrowsomething.com/shopJust Grow Something Gardening Friends Facebook Group: https://www.facebook.com/share/g/18YgHveF5P/ Check out how you can become a patron on Patreon: https://www.patreon.com/JustGrowSomethingBonus content for supporters of the Podcast: https://buymeacoffee.com/justgrowsomethingAmazon storefront: https://www.amazon.com/shop/justgrowsomething

How to Time Seed Starting for Your Garden: Start Dates That Make Sense - Ep. 290

Mar 3rd, 2026 9:00 AM

Timing your seed starting shouldn't be hard. There are plenty of calendars to follow, right? Until following a calendar means you start too early, run out of space, and end up babysitting leggy, root-bound seedlings for weeks. Or you start too late and miss the planting window you planned for.So, today on Just Grow Something, we're connecting the dots between frost dates, planting calendars, and harvest windows to build a seed-starting schedule that fits your garden and your climate.You’ll learn which crops are best started indoors vs direct sown, which plant families need a long “grow-on” period, how to avoid common timing traps, and a step-by-step way to pick seed-starting dates based on your planned transplant date or your desired harvest window.Let's dig in!If you need some additional help with starting your seeds indoors, it’s not too late in the season to take my Seed to Sprout course. In about 90 minutes you’ll know everything you need to know about getting your seeds started in the proper containers, with the right balance of lighting, water, and air flow, and how to get them transitioned to the garden with very little shock or damage. https://www.justgrowsomething.com/indoor-seed-startingUniversity of Missouri Extension — Starting Plants Indoors From Seeds: https://extension.missouri.edu/publications/g6570 Illinois Extension (Good Growing) — When should I start my seeds?: https://extension.illinois.edu/blogs/good-growing/2023-02-10-when-should-i-start-my-seedsJust Grow Something: https://justgrowsomething.comGardening Courses: https://justgrowsomething.com/coursesJust Grow Something Merch and Downloads: https://justgrowsomething.com/shopJust Grow Something Gardening Friends Facebook Group: https://www.facebook.com/share/g/18YgHveF5P/ Check out how you can become a patron on Patreon: https://www.patreon.com/JustGrowSomethingBonus content for supporters of the Podcast: https://buymeacoffee.com/justgrowsomethingAmazon storefront: https://www.amazon.com/shop/justgrowsomething

Spring Garden Bed Preparation - Ep. 289

Feb 24th, 2026 9:00 AM

If you want an easier garden season, February is the time to set the foundation. Two steps do most of the heavy lifting: getting a soil test and prepping beds without damaging soil structure. Done well, these tasks reduce fertilizer guesswork and improve root growth.You can do a lot right now that sets you up for success without rushing into two classic mistakes:1. throwing amendments at the garden without knowing what the soil actually needs, and2. working soil while it’s still too wet, which can damage structure for the long haul.So, today on Just Grow Something, I’m walking you through what a soil test can (and can’t) tell you, exactly how to collect a sample that’s representative of your whole garden, the key parts of a soil report that matter most for vegetables, and bed prep steps you can do now that improve soil instead of compacting it.Let’s dig in!Resources:My Seed to Sprout course is waiting for you here: https://justgrowsomething.com/indoor-seed-startingMy free Seed Starting eBook is here: https://justgrowsomethingpodcast.com/seedbookSoil amendment episodes and articles: https://justgrowsomethingpodcast.com/search/amendmentsHow to calculate how much fertilizer to add to the garden: https://justgrowsomethingpodcast.com/blog/how-much-fertilizer-to-add-to-your-gardenReferences:How temperature affects the rate of nitrification: https://livetoplant.com/how-temperature-influences-the-rate-of-nitrification/Guide to Collecting Soil Samples - Oregon State University: https://extension.oregonstate.edu/catalog/ec-628-guide-collecting-soil-samples-farms-gardensSoil Compaction from Wet Soils - Purdue University Extension: https://www.purdue.edu/hla/sites/yardandgarden/resist-the-urge-to-work-wet-soil/Add Organic Matter to Improve Most Garden Soils - Oregon State University: https://extension.oregonstate.edu/news/add-organic-matter-improve-most-garden-soilsJust Grow Something: https://justgrowsomething.comJust Grow Something Merch and Downloads: https://justgrowsomething.com/shopJust Grow Something Gardening Friends Facebook Group: https://www.facebook.com/share/g/18YgHveF5P/ Check out how you can become a patron on Patreon: https://www.patreon.com/JustGrowSomethingBonus content for supporters of the Podcast: https://buymeacoffee.com/justgrowsomethingAmazon storefront: https://www.amazon.com/shop/justgrowsomething

Indoor Seedling Troubleshooting - Ep. 288

Feb 17th, 2026 9:00 AM

Today is a clinic episode, a Seedling Troubleshooting Clinic to be exact, because if you’re starting seeds indoors, something is eventually going to look weird. A tray that was perfect yesterday is suddenly leaning. Something looks fuzzy on the soil surface. Or a seedling that seemed fine just flops over.The good news is most seedling problems come from a small handful of causes, causes that we can actually control - light, temperature, water, airflow, or sanitation. And once you know what you’re looking at, you can usually fix it quickly or at least stop it from spreading to the rest of your tray.So, I’m going to give you a simple diagnostic checklist and then we’ll walk through the most common seedling symptoms and what to do about each one.Let's dig in!Get my FREE seed starting ebook: https://justgrowsomethingpodcast.com/seedbookTake my comprehensive course for indoor seed starting, Seed to Sprout: https://justgrowsomething.com/indoor-seed-startingJust Grow Something episodes, videos and blog posts on seed starting: https://justgrowsomethingpodcast.com/search/seed%20startingReferences and resources:University of Illinois Extension: Troubleshooting seed starting problems: https://extension.illinois.edu/blogs/good-growing/2022-02-25-whats-wrong-my-seedlings-troubleshooting-seed-starting-problemsUniversity of Minnesota Extension: How to prevent seedling damping off: https://extension.umn.edu/solve-problem/how-prevent-seedling-damping Utah State University Extension: Seedling culture, airflow, temps: https://extension.usu.edu/yardandgarden/research/starting-vegetable-seeds-indoors-seeding-culture-and-transplanting.pdf Just Grow Something: https://justgrowsomething.comJust Grow Something Merch and Downloads: https://justgrowsomething.com/shopJust Grow Something Gardening Friends Facebook Group: https://www.facebook.com/share/g/18YgHveF5P/ Check out how you can become a patron on Patreon: https://www.patreon.com/JustGrowSomethingBonus content for supporters of the Podcast: https://buymeacoffee.com/justgrowsomethingAmazon storefront: https://www.amazon.com/shop/justgrowsomething

Onions vs Shallots in the Kitchen and the Garden - Ep. 287

Feb 10th, 2026 9:00 AM

Onions and shallots are closely related, they can be used in similar ways, and they look similar at the store, but they behave differently in both the kitchen and the garden.So, today on Just Grow Something we’re doing a side-by-side comparison of these alliums. We’ll cover how they differ in taste and cooking uses, how they differ in growth habit, how to grow each one, and finally, how to adapt for hot climates and short-season climates, because those two extremes can make or break your allium crop.Let’s dig in.References and Resources:Plan Like a Pro Gardening Planning Course: https://justgrowsomething.thinkific.com/courses/plan-like-a-proGrowing Onions - Ep. 233: https://justgrowsomethingpodcast.com/episode/ep-133-growing-onionsHow to Harvest, Cure, and Store Garlic and Onions - Ep. 256: https://justgrowsomethingpodcast.com/episode/how-to-harvest-cure-and-store-garlic-and-onions-ep-256University of Minnesota Extension — Growing onions in home gardens: https://extension.umn.edu/vegetables/growing-onionsUF/IFAS Gardening Solutions — Onions and shallots: https://gardeningsolutions.ifas.ufl.edu/plants/edibles/vegetables/onions-and-shallots/ Oregon State University Extension — Plant onions early for bigger summer bulbs: https://extension.oregonstate.edu/news/plant-onions-early-bigger-summer-bulbsJust Grow Something: https://justgrowsomething.comJust Grow Something Merch and Downloads: https://justgrowsomething.com/shopJust Grow Something Gardening Friends Facebook Group: https://www.facebook.com/share/g/18YgHveF5P/ Check out how you can become a patron on Patreon: https://www.patreon.com/JustGrowSomethingBonus content for supporters of the Podcast: https://buymeacoffee.com/justgrowsomethingAmazon storefront: https://www.amazon.com/shop/justgrowsomething

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