Prevent terra cotta flower pot deterioration with roofing tar

Have you noticed that after a while a terra cotta planter will disintegrate before your eyes? I have lost many a favored pot to the ravages of water and minerals leaching through the walls of the vessel. To prevent this from happening, coat the inside with elastomeric roof coating~it creates a barrier between the wet soil and the porous terra cotta. You’ll get about 4 gallons for the price, but it will last for a long time if all you’re doing is coating pots. It is worth the investment.

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