Mulch Learning Centre

Everything on this page exists to answer one question: how do you keep plants alive and soil healthy in a climate with 45°C+ summers, sandy alkaline soils and some of the highest evaporation rates on earth? The Learning Centre collects our science articles, water-saving research, installation guides and honest comparisons in one place, all written for UAE conditions rather than copied from temperate-climate gardening advice.

Start with the science section if you want to understand why mulch works — the physics of evaporation, soil biology, root-zone temperature and organic matter. Go straight to the practical guides if you have a spade in your hand. And if you are weighing up mulch against gravel or landscape fabric, the comparison articles give you the trade-offs without the sales pitch. When you are ready to work out quantities, the mulch calculator does the maths for you.

Guides & Science (20)

Practical, UAE-specific guides on mulch science, water saving, installation, maintenance and comparisons.

News & Featured Articles

More reading from our article library.

Frequently Asked Questions

What is the Mulch Learning Centre?

It is the free knowledge base of mulch.ae, covering the science of soil moisture, soil biology and temperature, plus practical guides on installation, maintenance and water-saving landscaping. Every article is written for UAE conditions — sandy alkaline soils, saline irrigation water and 45°C+ summers — rather than recycled temperate-climate advice.

Where should a beginner start?

Start with How Mulch Retains Soil Moisture to understand the core mechanism, then read the DIY Garden Mulching Guide before you buy anything. Between those two articles you will know why mulch works, how deep to lay it (50–70mm for residential beds) and how to prepare the soil underneath.

Is the advice specific to coconut coir mulch?

The science applies to any organic mulch, but our depth, lifespan and performance figures are based on 100% coconut coir, which is what Green Zen supplies. Coir is pH neutral (5.8–6.8), lasts 18–24 months in UAE conditions and reduces soil moisture loss by up to 70% versus bare soil.

How much water can mulch actually save in the UAE?

Properly installed organic mulch at 50–70mm depth reduces evaporative moisture loss from soil by up to 70% compared with bare soil. In practice most gardens can cut irrigation frequency substantially, especially in summer when evaporation peaks. The article on water-saving landscaping covers the full picture, including drip irrigation and plant selection.

Does mulch really work in 45°C summer heat?

Yes — extreme heat is precisely where mulch delivers the most value. Bare UAE soil surfaces can exceed 45°C in summer, which stresses or kills shallow roots. A 50–70mm mulch layer insulates the root zone, keeping soil markedly cooler by day and more stable overnight. The soil temperature article explains the mechanism in detail.

What depth of mulch do the guides recommend?

50–70mm for residential beds and 70mm as the commercial standard. Thinner layers lose their insulating and moisture-holding effect; much deeper layers can restrict air exchange and encourage roots to grow upward into the mulch. The mulch depth guide covers the reasoning and the exceptions.

Is mulch better than gravel or landscape fabric?

For soil health and water saving, organic mulch outperforms both: gravel absorbs and radiates heat, and landscape fabric blocks the organic matter cycle that feeds soil biology. Gravel still has legitimate uses in pathways and unplanted zones. The comparison articles set out the trade-offs honestly.

How often does organic mulch need replacing?

Coconut coir mulch lasts 18–24 months in UAE conditions before it has broken down enough to need a full top-up. That breakdown is not a flaw — it is the mechanism that feeds organic matter and humus into the soil. Most gardens need a light annual top-up and a fuller refresh in the second year.

Do you cover commercial and bulk projects?

Yes. The commercial mulching standards article covers specification language, 70mm depth standards and coverage rates for contractors and facilities managers, and Green Zen supplies bulk mulch at AED 500 per cubic metre with UAE-wide delivery. For project quotes, contact us on WhatsApp at +971 58 654 8551.

How do I work out how much mulch I need?

Use the formula Area (m²) × Depth (m) = Volume (m³). A 20m² bed at 60mm needs 1.2m³. The mulch calculator on this site does the conversion for you and matches the result to bag and bulk sizes, from the 10L bucket (AED 25) up to bulk cubic metres.