Just Grow Something | Evidence-Based Home Gardening

How to Time Your Fall Brassicas - Ep. 307

June 30, 2026·25 min
Episode Description from the Publisher

Fall gardening doesn't start in September. For the crops that take a long time to produce, your broccoli, your cauliflower, your cabbage, your Brussels sprouts, it starts right now in late June and early July. And if you've never had a productive fall brassica bed, it's almost certainly because you started too late and it took me a lot of years to master this. This episode is about fall gardening planning, and specifically about the crops that require you to be thinking ahead right now, in late June and into July, when literally nothing about summer conditions suggest that fall is coming. We’re talking about the timing, why it matters, how to calculate it for your specific first frost date, and exactly what to do if you're sitting here thinking you may have already missed the window — because you might not have, but we need to move quickly. Let’s dig in. Join my FREE fall garden email challenge! https://justgrowsomethingpodcast.com/fall Resources: How to Calculate Your Fall Brassica Dates Step 1: Find your average first frost date (garden.org/apps/frost-dates or your local extension service) Step 2: Take days to maturity for your chosen variety Step 3: Add 10–14 days for the short-day factor Step 4: Count backward from first frost — that is your transplant-out deadline Step 5: Count back another 4–6 weeks — that is your seed-starting deadline MU Extension — Vegetable Planting Calendar (G6201): Variety-specific fall planting dates for Missouri's three planting regions. https://extension.missouri.edu/publications/g6201 UMN Extension — Growing Broccoli: Seed-starting timing (early to late July for fall crop), variety selection, and fall head quality. https://extension.umn.edu/vegetables/growing-broccoli UMN Extension — Growing Broccoli: Seed-starting timing (early to late July for fall crop), variety selection, and fall head quality. https://extension.umn.edu/vegetables/growing-broccoli UMN Extension — Growing Brussels Sprouts: Start seeds in June indoors or direct, water deeply once weekly, harvest through fall frosts. https://extension.umn.edu/vegetables/growing-brussels-sprouts UMN Extension — Growing Cauliflower: Start seeds in July for fall crop; cool temperatures essential for quality curd formation. https://extension.umn.edu/vegetables/growing-cauliflower UMN Extension — Growing Cabbage: For fall crop, plant seed directly in garden in early July; cabbage takes 60–100 days. https://extension.umn.edu/vegetables/growing-cabbage UMD Extension — Planting Dates for Vegetable Crops (Transplant Timing): Short-day factor methodology for fall transplant timing. https://extension.umd.edu/sites/extension.umd.edu/files/2021-03/PlantingDatesforVegetableCropsinMaryland.pdf Just Grow Something: https://justgrowsomething.com Gardening Courses: https://justgrowsomething.com/courses Just Grow Something Merch and Downloads: https://justgrowsomething.com/shop Just 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/JustGrowSomething Feed my coffee habit: https://buymeacoffee.com/justgrowsomething Amazon storefront: https://www.amazon.com/shop/justgrowsomething Get 10% off and FREE shipping on my favorite raised planters at Planter Box Direct using code JUSTGROW10: https://planterboxdirect.com/?ref=593 Host

Podzilla Summary coming soon

Sign up to get notified when the full AI-powered summary is ready.

Get Free Summaries →

Free forever for up to 3 podcasts. No credit card required.

Listen to This Episode

Get summaries like this every morning.

Free AI-powered recaps of Just Grow Something | Evidence-Based Home Gardening and your other favorite podcasts, delivered to your inbox.

Get Free Summaries →

Free forever for up to 3 podcasts. No credit card required.