Pumice is a porous volcanic glass formed from the rapidly cooled froth of lava flows. As a soil amendment pumice is lauded for its dual use application for aeration to allow water drainage and increase oxygen flow, and its porosity allows for the storage of water and nutrients- making them available to roots as the plant needs. In potting soil, pumice is the perfect substitute for perlite- pumice is a little heavier than perlite which prevents it from ‘floating’ to the surface like perlite will. Pumice is often used as a base for succulents and desert plants because it creates a well-draining environment for plants that thrive in arid and drought like conditions.
Mix as much as 33% pumice to compacted soil or potting mixes for increased aeration. For cactus and desert adapted landscapes lay a 4-6 inch bed of pumice beneath transplants, thicker applications in clay heavy soils. For soil-less growing practices mix up to 40% pumice with preferred growing medium.
Sourced in New Mexico.
COVERAGE CALCULATOR
Soilutions products are sold in bulk quantities measured by the cubic yard (3’x3’x3’). Our handy coverage calculator will help you easily figure out how much compost, soil, or mulch you need for a successful project.
There are two easy ways to visualize a cubic yard:
How to Use Coverage Calculator:
Depth recommendations for common applications. For more details check out our guides:
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COVERAGE DEPTH RECOMMENDATIONS |
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LAWNS |
DEPTH |
RECOMMENDED PRODUCT(S) |
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TOPDRESSING EXISTING LAWN |
0.5-1" |
Enriched Topsoil |
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NEW SEED OR LAYING SOD - TOPSOIL METHOD |
4-6" |
Enriched Topsoil, Premium Garden Soil |
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NEW SEED OR LAYING SOD - TILL IN COMPOST METHOD |
2-3" |
Soilutions Compost |
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GARDENS & PLANTING AREAS |
DEPTH |
RECOMMENDED PRODUCT(S) |
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AMENDING EXISTING VEGETABLE OR FLOWER GARDEN |
2-4" |
Soilutions Compost, Enriched Topsoil, Premium Garden Soil |
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NEW RAISED BED OR GARDEN |
16"+ |
Enriched Topsoil, Premium Garden Soil |
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AMENDING TREES & SHRUBS |
3" |
Enriched Topsoil, Premium Garden Soil |
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MULCH |
DEPTH |
RECOMMENDED PRODUCT(S) |
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IN-GROUND GARDEN MULCH APPLICATION |
2-4" |
Any Soilutions Mulch |
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PLAYGROUND MULCH APPLICATION |
8" |
Playground Mulch |
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RAISED BED GARDEN MULCH APPLICATION |
2-4" |
Forest Floor Mulch |
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TREES & SHRUBS MULCH APPLICATION |
4" |
Forest Floor Mulch, Native Mulch |
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PATHWAY MULCH APPLICATION |
3" |
Pecan Shell Mulch, Wood |
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SLOPE OR EROSION CONTROL MULCH APPLICATION |
4-6" |
Native Mulch |
Pumice is a porous volcanic glass formed from the rapidly cooled froth of lava flows. As a soil amendment pumice is lauded for its dual use application for aeration to allow water drainage and increase oxygen flow, and its porosity allows for the storage of water and nutrients- making them available to roots as the plant needs. In potting soil, pumice is the perfect substitute for perlite- pumice is a little heavier than perlite which prevents it from ‘floating’ to the surface like perlite will. Pumice is often used as a base for succulents and desert plants because it creates a well-draining environment for plants that thrive in arid and drought like conditions.
Mix as much as 33% pumice to compacted soil or potting mixes for increased aeration. For cactus and desert adapted landscapes lay a 4-6 inch bed of pumice beneath transplants, thicker applications in clay heavy soils. For soil-less growing practices mix up to 40% pumice with preferred growing medium.
Sourced in New Mexico.
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This pumice is great for providing airaton for roots in our soil mix for cacti. I prefer just a straight 1/4 inch pumice but unfortunately they don’t offer this size option.
