Lava stone is a natural volcanic rock that is quarried, which contains many kinds of mineral materials, such as silicon, magnesium, nickel,etc.
Lava rock is the output of melted rock from volcanoes that has cooled down. The natural colors range from dark reddish to deep brown and black. Smaller rocks are used for a permanent mulch while larger ones are available as prominent landscaping features.
Advantages
a.Tests show that micro nutrients even in these tiny amounts are enough to give many drought tolerant plants all the food they need.
b.Maintains a reservoir of moisture in the soil so you don't need to water as often, or at all. The cool moist root run helps many plants survive drought conditions much better.
c.Prevents weeds from germinating, and also makes the soil softer and existing weeds are easier to pull.
d.Adds organic matter to the soil as the mulch breaks down.
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