How to Make a Hypertufa Planter

8 steps
14:00 video
Difficulty: Medium
About 1 hour, plus 36 hours to dry or set
Materials about $15 to $25
Crafts

Based on a video by Irene's DIY Addiction

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Steps written out by Crafting Step by Step · Published Jul 14, 2026 · Updated Oct 10, 2026

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Also in:Gardening

Hypertufa is a lightweight, porous version of concrete that looks like weathered stone once it ages. It costs a fraction of a real stone trough and you can shape it into any container you have lying around. This build comes from Irene's DIY Addiction, whose recipe held up through a Canadian winter that hit -22 F.

The mix is simple: two parts Portland cement, one part peat moss, and one part vermiculite, plus a handful of reinforcing fibers. You pack it into greased plastic bowls or tubs, let it cure, then brush and drill it into a finished planter. If you like this kind of casting project, take a look at our guide on how to make a concrete planter for a smoother, modern finish.

Once your trough has cured and leached, it is ready to plant. Grasses, sedums, and alpines all love the gritty, free-draining feel of hypertufa. Pair it with our succulent terrarium guide if you want a second low-water container to sit beside it.

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Step-by-step guide

8 steps, about 14 minutes. Tap a picture to jump to that step. Your progress saves automatically.

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Step 1: Measure the Dry Mix
Watch this step · 2:50
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Start with your dry ingredients in a large tub. The recipe is two parts Portland cement, one part peat moss, and one part vermiculite, plus a handful of reinforcing fibers. Add the vermiculite and peat first, then the cement. Break up any clumps of peat with your gloved hands so everything blends evenly. A dust mask matters here since dry cement and peat both throw fine dust.
Tip:
Vermiculite keeps the planter light and frost-tolerant. Perlite works too if that is what your garden center stocks.
Used in this stepPortland cement peat moss vermiculite reinforcing fibers for concrete
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Step 2: Add the Portland Cement
Watch this step · 1:30
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Cement is what binds the whole planter, so measure it carefully against the peat and vermiculite. Two scoops of cement to one scoop each of the others gives you a strong wall that still ages to a soft stone finish. Pour it into the tub with the rest of the dry mix. Keep your ratios consistent scoop to scoop rather than by weight, since the peat and vermiculite are so much lighter.
Tip:
Buy a fresh bag of cement. Cement that has sat in a damp garage picks up moisture and sets weak.
Used in this stepPortland cement rubber gloves dust mask
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Step 3: Add Water and Mix by Hand
Watch this step · 3:30
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Pour in water a little at a time and work it through with your hands. You are aiming for a thick, moldable texture, closer to wet clay than to pourable concrete. Squeeze a handful and it should hold its shape without water dripping out. If it slumps or runs, add a scoop of dry mix. Too little water and it will crumble instead of packing, so add slowly and keep testing.
Tip:
Wear thick rubber gloves. Wet cement is caustic and will dry out and crack bare skin fast.
Used in this steprubber gloves mixing tub
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Step 4: Prepare Your Molds
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Almost any container works as a mold. Plastic mixing bowls, storage tubs, and cardboard boxes all give you a shape to pack against. Wipe the inside with a thin coat of cooking oil or grease so the cured planter releases cleanly later. If you want a bowl shape, use a rounded bowl. For a rectangular trough, a plastic storage box does the job.
Tip:
Flexible plastic molds pop off far more easily than rigid ones. A little give lets you flex the mold away from the cured piece.
Used in this stepplastic mixing bowls plastic storage container
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Test yourself when you finish
5 quick questions are waiting at the end of this guide. No signup, and nothing is saved. Skip to the quiz
Step 5: Pack the Mix Into the Mold
Watch this step · 5:10
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Press the mix firmly against the mold, building up walls about an inch thick and a solid base. Push out air pockets as you go, because trapped air turns into weak spots and holes. Work from the bottom up and keep the wall thickness even all the way around. A thicker base helps the planter sit steady once it is full of soil and plants.
Tip:
Keep the rim a little thicker than the walls. Rims take the most knocks and chip first.
Used in this steprubber gloves plastic mixing bowls
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Step 6: Cure and Unmold
Watch this step · 7:40
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Cover the piece loosely and let it cure for a day or two before you touch it. Slow curing under plastic makes the planter stronger than letting it dry fast in the sun. Once it holds firm, flex the mold and ease the planter out. It is still green at this stage, so support the whole thing and set it down gently on cardboard.
Tip:
If the surface still feels soft, give it another day. Rushing the unmold is how corners break off.
Used in this steprubber gloves plastic mold container
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Step 7: Brush the Surface and Drill Drainage
Watch this step · 8:40
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Now you give it character. Run a wire brush over the surface to knock off sharp edges and expose the porous texture that reads as aged stone. Brush harder in spots for a more weathered look. Then drill a drainage hole through the base with a masonry bit so water can escape. Without drainage, roots sit in water and rot, so do not skip the hole.
Tip:
Brush while the planter is still slightly green. Fully cured hypertufa is much harder to shape.
Used in this stepwire brush cordless drill with masonry bit
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Step 8: Leach, Then Plant It Up
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Fresh hypertufa is high in lime, which can harm plants, so rinse and soak the planter several times over the next couple of weeks to leach it out. Once the water runs clear, fill it with a gritty, free-draining mix and plant it. Sedums, ornamental grasses, and alpines all thrive in the porous walls. Set it into the garden and it will start to grow moss and soften into the landscape.
Tip:
A splash of buttermilk or yogurt brushed on the outside speeds up the mossy patina if you want that aged look sooner.
Used in this stepwell-draining potting mix succulents or alpine plants
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How to Draw a Dreidel

Products Used

Portland cementView peat mossView vermiculiteView reinforcing fibers for concreteView rubber glovesView dust maskView mixing tubView plastic mixing bowlsView plastic storage containerView plastic mold containerView wire brushView cordless drill with masonry bitView well-draining potting mixView succulents or alpine plantsView

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Question 1 of 5

What is the classic hypertufa mix by volume?

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Key takeaways from How to Make a Hypertufa Planter

5 questions, answers, and one-line explanations. Tap to expand.

1.What is the classic hypertufa mix by volume?
Answer: Two parts cement to one part each peat and vermiculite
Two-to-one-to-one gives a wall strong enough to hold yet light enough to lift.
2.What texture are you going for when you add the water?
Answer: Thick and moldable, closer to wet clay than to concrete
Squeeze a handful; it should hold its shape without water dripping out.
3.Why grease the inside of the mold before packing the mix in?
Answer: So the cured planter releases cleanly instead of sticking
A thin coat of oil lets you flex the mold off a cured piece without cracking it.
4.Why cure the piece slowly under cover instead of drying it fast in the sun?
Answer: Slow curing under cover makes it stronger
Concrete gains strength from slow, moist curing, not a quick bake.
5.Fresh hypertufa is high in lime, which can hurt plants. What do you do before planting it up?
Answer: Rinse and soak it several times to leach the lime out
Repeated soaking pulls the lime out so roots don't sit in a harsh mix.