If you are looking for an attractive, low cost way to add interest and fun to the hardscaping in your garden, consider Hypertufa. Hypertufa is a concrete mixture that a Do-It-Yourselfer can use to create pots, troughs, or even a birdbath. You are only limited by your imagination.
Using a large plastic container and wearing rubber gloves, combine equal parts of Portland cement, perlite and sphagnum peat moss. Mix thoroughly (by hand) and gradually add water until the mixture resembles wet mud. The mixture should hold together when squeezed, but should not drip. Once you are satisfied with the mixture, you are ready to begin the molding process.
Molds can be anything from a box to a bowl or other container. Line the mold with plastic and pack the mixture inside the mold to achieve the desired shape. Remember to create drainage holes if you are making a pot for planting. The plastic lining will assist in the release of the Hypertufa pot from the mold once the curing process is complete.
The pot should be hardened in about a week and can be removed from the mold. Then leave the pot in a dry, shady spot for another 3 weeks or so. A final step before planting is to leach out the alkali in the Portland cement by filling the pot with water and letting it drain over the course of several days. Once this process is complete, the pot is ready for planting.
Hypertufa pots give a primitive, rustic look to the garden so choose plants accordingly.
Susan Stone, Smith County Master Gardener
Texas AgriLife Extension Service