How to Get Rid of Privet: Glyphosate-Free Smothering for Good

How to get rid of privet—it’s trickier than it looks. That glossy-leaved shrub may seem harmless, but it’s a garden bully. I’ve wrestled with this invasive shrub for years—until I discovered smothering techniques that actually work. No harsh chemicals, just elbow grease and patience to reclaim your yard. The secret weapon? Cardboard, thick mulch, and timing. Cut the privet down in early spring before new growth starts, then cover the stumps with layers of cardboard and wood chips. Within 6-12 months, the roots will starve and die, leaving you with a clean slate. You’ll notice fewer weeds, no more privet sprouts, and soil that’s finally ready for your dream plants. The best part? This method works for any size yard, from suburban backyards to small urban plots. Fair warning: regrowth is the biggest challenge. Stay vigilant for 2-3 years after treatment, but persistence pays off—your garden will thank you.

What you need

Step-by-Step instructions for removing privet without glyphosate

Here’s how I’ve successfully eliminated stubborn privet hedges using only organic methods—no chemicals, just persistence and the right technique.

First, grab a pair of loppers or a pruning saw and cut the privet back to the ground. This removes the leaves and stems that would otherwise compete with your smothering efforts. I like to do this in late winter or early spring when the plant is dormant—it’s easier on the tools and the plant isn’t actively growing.

Cut as close to the base as possible without damaging the surrounding soil. You’ll likely see new shoots emerge from the roots, but don’t worry—this is normal. The goal is to weaken the plant’s energy reserves so it can’t sustain regrowth when we smother it. If the privet is thick, tackle it in sections to avoid overworking yourself.

Once the privet is cut back, cover the entire area with a thick layer of cardboard or newspaper. This blocks sunlight, which privet roots need to produce food. I use at least 4-6 layers of cardboard (the thicker, the better) to ensure no light can penetrate. Overlap the edges by 6 inches to prevent gaps where light could sneak through.

Secure the edges with rocks or bricks to keep the cardboard in place, especially if you’re in a windy area. This step is critical—privet roots are tough, and even small amounts of light will allow regrowth. If you see any gaps after a few days, add more layers immediately. The goal is complete darkness for the roots.

After the cardboard is in place, add a 3-4 inch layer of mulch or wood chips on top. This keeps the cardboard from blowing away and adds weight to hold it down. I prefer shredded hardwood mulch because it breaks down slowly and adds organic matter to the soil as it decomposes.

Spread the mulch evenly, making sure there are no bare spots where light could reach the cardboard. If you’re working in a high-traffic area, consider adding a thin layer of straw on top of the mulch to protect it from foot traffic or erosion. This entire setup should last at least 6 months, but I’ve found that 12 months gives the best results for complete eradication.

Check the covered area every 2-3 months to ensure the mulch and cardboard are still intact. If you notice any shifting or gaps, add more mulch or secure the edges again. Privet roots are persistent, so consistency is key. You’ll know the method is working when you see no new shoots emerging from the ground.

After 6-12 months, carefully remove the mulch and cardboard. Dig up the remaining roots with a shovel or garden fork, being thorough to avoid any regrowth. If you find any stubborn root fragments, you can either leave them to decompose naturally or treat them with a vinegar and salt solution (a final non-toxic option). The soil should now be ready for new plants or landscaping.

To ensure privet doesn’t return, install a landscape fabric barrier around the edges of the former hedge area. Bury the fabric 6 inches deep and extend it 12 inches above ground level. This blocks any underground runners or seeds from taking root. I also plant competitive ground covers like clover or creeping thyme in the area to further suppress privet growth.

If you’re planting new shrubs or flowers in the space, choose species that grow quickly and densely, like periwinkle or ajuga, to outcompete any lingering privet roots. With patience and the right approach, you’ll have a privet-free yard in no time.

Tips & tricks for effective privet removal

These practical strategies will help you tackle privet eradication with confidence—and avoid the common pitfalls that can turn this method into a never-ending battle.

Timing is Everything: The late winter or early spring timing in Step 1 isn't just about convenience—it's when privet plants are most vulnerable. Their energy reserves are lowest during dormancy, making them far more susceptible to the smothering technique. If you miss this window, don't panic: fall is actually the second-best time to attack, as the plant begins storing energy for winter and becomes more sensitive to stress.

Layering Secrets: When creating those 4-6 layers of cardboard in Step 2, think of it like building a fortress against light. The key is creating an unbroken barrier—even a tiny gap can let in enough sunlight to trigger regrowth. I like to use corrugated cardboard for extra thickness, and I always remove any tape or glossy coatings that might reflect light. For newspaper, use at least 6 sheets per layer to match the cardboard's effectiveness.

Mulch Matters More Than You Think: That 3-4 inch layer of mulch in Step 3 serves three critical purposes: it anchors the cardboard, blocks remaining light, and creates a microclimate that accelerates root decomposition. I've found that shredded hardwood mulch works best because it breaks down slowly while still allowing some moisture penetration. Avoid using fresh wood chips, as they can draw moisture away from the roots and actually slow down the process.

The 2-3 Month Check-In: Those regular monitoring intervals in Step 4 are your best defense against privet persistence. I set a calendar reminder because I've seen too many well-intentioned gardeners forget to check and end up with stubborn regrowth. When you do check, look for three signs: settled mulch (no shifting), no visible light gaps, and—most importantly—no new shoots. If you see even a single sprout, it means your barrier isn't complete somewhere.

Frequently asked questions

When is the best time of year to smother privet?

The ideal time is late spring or early summer (May–July in most regions) when privet is actively growing but before it flowers. This ensures the plant is stressed enough to die under mulch while minimizing regrowth. Avoid smothering in winter—cold temps can delay decomposition.

How long does it take for smothering to kill privet?

With proper technique (3–4 inches of dense mulch + consistent moisture), privet typically dies within 6–12 months. Younger plants may succumb faster (3–6 months), while thick, mature roots can take up to 2 years. Patience is key—check for new shoots annually and reapply mulch if needed.

Can I use cardboard or newspaper instead of black plastic?

Yes! Cardboard or thick newspaper (ink-free) works well as a biodegradable alternative. Wet the layers thoroughly to prevent wind from blowing them away, then top with 3–4 inches of mulch. Just ensure the material fully blocks light—privet can sprout through thin or torn sheets.

What if privet keeps growing back after smothering?

Regrowth usually means roots survived or light sneaked through. Dig up any new shoots immediately and check for remaining stems. Add another 2–3 inches of mulch to the area, or spot-treat stubborn roots with a vinegar-based herbicide (glyphosate-free) for stubborn cases.

Will smothering privet harm nearby plants or wildlife?

No—smothering is targeted and eco-friendly. Just keep mulch 2–3 feet away from desirable plants to avoid suffocating them. Wildlife like bees or birds won’t be affected unless you’re using chemical herbicides. For extra safety, opt for organic mulch (straw, wood chips) to support local ecosystems.

Wrapping up and next steps

Getting rid of privet doesn’t have to mean harsh chemicals—with the right glyphosate-free smothering techniques, you can reclaim your yard for good! 🌱 Whether you choose cardboard mulching, black plastic sheets, or dense ground cover, consistency is key.

Start small, stay patient, and soon, your space will be free of those stubborn shrubs.

Ready to take action? Pick your method, gather your supplies, and begin smothering today! Your future, weed-free garden is waiting—just a few steps away. 🌿