Episode 165: Frost Protection Basics

Frost season is here — and if you’re in a cold pocket like the Southern Tablelands, you already know it can wipe out a garden overnight.

In Episode 165 of Ditch The Store, I’m walking you through frost protection basics: what frost actually is, how to judge your risk, the cheap methods that work, and the common mistakes that make things worse.

Quick personal note first: Tuesday was my “D‑Day” — I’m saw the surgeon to check the X‑ray and find out whether the bone graft in my leg has taken. If you’ve got a spare good thought, send it my way.

In this episode

• What frost is (ice crystals forming on plant surfaces below 0°C)

• Why clear, still nights are the biggest frost risk (clouds = a blanket)

• Frost pockets and why cold air behaves like water (it sinks and pools)

• How to judge your frost risk: light frost vs hard frost

• Knowing your first/last frost dates (and why late surprise frosts happen)

• What gets smashed first (the drama queens) vs what can cope

• Microclimates you can use to “cheat”:

• Brick walls + under eaves

• Evergreen shelter (with the trade-off of shade)

• Near water (more stable temps)

• 5 frost protection methods:

1. Cover plants (frost cloth, sheets, cloches, plastic with a frame)

1. Mulch (stabilises soil temps + suppresses weeds)

1. Watering (moist soil holds heat — but water early, not at night)

1. Move pots (verandah, greenhouse, shed/garage overnight)

1. Windbreaks + airflow management (wind strips warmth and dries plants)

• What NOT to do:

• Plastic/fabric sitting directly on leaves

• Leaving covers on for days without airflow/light

• Pushing nitrogen fertiliser in winter (soft growth = frost damage)

• Ignoring weeds (they don’t take winter off)

• Protecting specific plants: seedlings vs established plants, herbs, leafy greens, root veg

• Winter infrastructure checks: hoses, taps, irrigation lines, frozen pipes

• A simple frost-night checklist (forecast → cover → mulch → move pots → uncover)

• Australian cold zone map (https://canva.link/wthzfa19m20cmbi)

Mentioned Next week

What you can still grow in winter — including ideas for different zones (not just mine). Got a go-to frost trick that actually works? Send me a DM and tell me what you do.