Pumice is a lightweight, porous volcanic rock that forms during explosive eruptions. It is used in horticulture as a soil amendment and for propagating plants. Pumice has a high surface area to volume ratio, which makes it ideal for aeration and drainage in potting mixes. It also has a neutral pH and is rich in minerals. Pumice is an excellent addition to succulent and cactus potting mixes, as well as to mixes for plants that require well-drained soil.

There are many places to buy pumice for plants. Here are some of the best:

Pumice is a great addition to any potting mix. It helps with drainage and aeration, and it’s rich in minerals. It’s also neutral in pH, so it won’t affect the pH of your potting mix. Pumice is an excellent choice for succulent and cactus potting mixes, as well as for mixes for plants that require well-drained soil.

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