Using pumice for plants is a better choice if the plant is tall, because the weight of the pumice can help prevent the pot from toppling. … Pumice also lasts longer than perlite. On the other hand, pumice may be harder to find in the store, especially crushed for mixing with soil, and costs more than perlite.
In this manner, can I substitute pumice for perlite?
Pumice is also a bit heavier than perlite. This means there will be less waste, and you won’t lose so much product to wind, rain, and routine watering. Since pumice doesn’t decompose, this means that you won’t need to replace it, which can help cut back on cost.
Moreover, what can I use instead of perlite?
What is a good substitute for perlite?
- Rice husks.
- Horticultural grit.
- Granite gravel.
- Calcined clay.
Does pumice increase drainage?
Both pumice and perlite help improve soil drainage and increase oxygen levels in clay soils. Pumice particles are larger than perlite and less likely to blow away in windy areas. Basic garden soil is enough for many plants. Pumice is the better choice for sandy soils because it greatly increases water-holding capacity.
Mulch. Pumice also works as a mulch. It can be used to reduce evaporation and erosion rates, especially in areas where torrential rainfall is a risk. The porous surface of pumice helps absorb water and insulates the soil, decreasing moisture loss during dry periods.
Styrofoam is an economical alternative to perlite, according to the University of Connecticut. Similarly, it is lightweight, but differently, and it compresses over time instead of retaining its airy properties.
- Water can drain away quickly. …
- Being so lightweight, perlite can be blown away and tends to float in excess water.
- Nonrenewable resource. …
- Dust can create respiratory problems and eye irritation.
WEST LAFAYETTE, Ind. – Greenhouse plant growers can substitute rice hulls for perlite in their media without the need for an increase in growth regulators, according to a Purdue University study.
Uses of Pumice
- an abrasive in conditioning “stone washed” denim.
- an abrasive in bar and liquid soaps such as “Lava Soap”
- an abrasive in pencil erasers.
- an abrasive in skin exfoliating products.
- a fine abrasive used for polishing.
- a traction material on snow-covered roads.
- a traction enhancer in tire rubber.
Pumice for Succulents
You can also plant your succulents in exclusively pumice, though you’ll want to be careful with your watering frequency. … This can work well for succulents as pumice doesn’t “feel” wet like a traditional potting soil and it allows for more airflow around the particles, similar to the gritty mix.
Pumice is naturally rich in micronutrients that are exceptional for healthy succulents. Unlike the feather-weight, lookalike perlite, pumice will not float up through the potting soil with each watering. To improve the drainage of your succulent soil, simply add pumice!