How to Cure Hypertufa

Natural Curing

• 1

  Place the dried hypertufa outside where it will be exposed to weather and natural rainfall. Because hyperfuta contains lime, it is necessary to allow the finished project to cure in the rain to wash away the excess lime. Otherwise, the lime may harm your plants and inhibit their growth.

• 2

  Flush the pot with water every two to three days if your area does not receive at least 1 inch of rainfall a week.

• 3

  Allow the hypertufa to cure for at least four weeks. Longer curing is preferable to ensure that all of the lime has washed away. Many gardeners prefer to make hypertufa planters in the fall for use the next spring.

Speed Curing

• 4

  Mix 1/2-cup vinegar with 2 gallons of water to create a solution for soaking the hypertufa. You will need enough solution to totally submerge the planter or garden art.

• 5

  Pour the solution into a large basin, bucket or other container large enough to hold the hypertufa.

• 6

  Submerge the hypertufa in the solution of vinegar and water and allow it to sit for 24 to 48 hours. The solution of vinegar and water dissolves the excess lime.

• 7

  Remove the hypertufa from the solution and rinse it with water. Allow it to dry then use as desired.