This $100 Tarp Replaced Our Tiller — Here's Proof
If you'd told us a year ago that the best $100 we'd spend on the farm would be a plain black-and-white tarp, we wouldn't have believed you. But that's exactly what happened with one of our garden beds this spring.
The Problem: Weeds, Every Single Year
Like most growers, we used to till every bed before planting. It worked, but it also woke up a fresh crop of weed seeds every time, which meant more hand-weeding all season long. We wanted a way to prep beds that didn't create more work down the road.
The Fix: Silage Tarping (aka Occultation)
Silage tarps are heavy-duty, UV-treated black-and-white tarps originally used to cover dairy silage. Market gardeners have adopted them as a no-till weed control method: you lay the tarp over a bed, weigh down the edges, and let it sit.
Here's what happens underneath:
- The dark cover blocks light completely, so nothing can photosynthesize
- Warmth and moisture trapped under the tarp actually encourage weed seeds to germinate
- Without light, those newly sprouted weeds die off within days
- Worms and soil microbes move in and break down the dead plant matter, loosening the soil naturally
No spraying. No tilling. No disturbing the soil biology we're trying to build up.
What We Did
We bought a 5-mil, dual-sided, UV-treated silage tarp (around $100 for a size that covers a standard raised bed footprint), spread it over one of our weediest beds, and staked down the edges so wind couldn't get under it.
Then we walked away for 4 weeks.
The Results
When we pulled the tarp back, the bed was clean — no weeds, no clumps, just soft, dark soil ready to plant. We didn't touch a tiller or a hoe. That same bed is now growing basil that we're harvesting every week.
The tarp itself isn't a one-time cost either — it's reusable season after season, so this $100 tool is going to keep paying for itself on future beds too.
Watch It In Action
See the full before-and-after in our short video: Watch on YouTube →
Should You Try It?
If you're tired of the tilling-and-weeding cycle every spring, silage tarping is one of the lowest-effort upgrades you can make to your bed prep. A few tips if you're getting started:
- Timing: plan for 3–6 weeks under the tarp, depending on the season (longer in cooler weather)
- Sizing: measure your bed and add extra so you have enough overhang to weigh down the edges
- Anchoring: sandbags, boards, or landscape staples all work — the key is keeping wind from getting underneath
We also use lighter white row covers for frost and pest protection on other beds — same idea of covering the soil, different material and purpose than a silage tarp.
Where to Get One
We carry this exact tarp — the dual-sided, UV-treated, 5-mil silage tarp from our Mindful Farmer line, rated for 10+ years of use: Shop the Silage Tarp on Harvick Farms →
Want more no-till and market gardening tips? Follow along on Instagram or subscribe on YouTube.
Shop our farm: harvickfarms.com
