Wood chips: The complete guide to garden mulching that saves water and weeds

One layer of pine bark mulch — and in the Israeli heat, your garden retains moisture, suppresses weeds, and improves itself.

In the Israeli summer, the true enemies of the garden are not heat or sun — but rapid moisture evaporation and weeds that pop up like crazy. Pine bark chips are the simple, organic, and beautiful solution that tackles both at once. Proper mulching reduces watering frequency, keeps soil temperatures balanced, and enriches the soil with humus as it breaks down over time. In the following lines, you will find everything you need to know — what to lay down, how much, and where.

Why has bark mulch become essential in the Israeli garden?

In rainy countries, mulch is a luxury. In Israel, with a six-month summer and harsh sun, it is a necessity. When soil is exposed to direct sun, it loses moisture very quickly — and stresses the plant's root system. A layer of organic mulch creates a barrier that slows evaporation and creates a more pleasant micro-climate underneath.

Pine bark chips are the most common choice in Israeli gardens because they are aesthetic, medium-sized (which prevents them from drifting in the wind), decompose slowly, and improve soil texture. They are different from potting mix (which is inside the pot) — they cover the top surface layer.

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3 proven benefits of organic mulch

• Water savings: A layer of mulch slows soil evaporation and allows for less frequent weekly watering. In summer, this translates to less effort and a lower water bill.
• Weed suppression: Weeds need light to germinate. A 5–8 cm layer blocks light and prevents most common seeds from germinating. Less weeding = less hoeing work.
• Soil improvement: Pine bark decomposes slowly over the years and adds organic matter to the soil. The decomposition encourages earthworm activity and improves long-term soil texture.

5 steps for applying proper mulch in the garden

1. Clean the ground: Remove weeds and old straw residue before applying new mulch. Mulching over weeds is ineffective — it will stifle them for only a few weeks before they grow around it.
2. Water the soil first: Before spreading the bark, water the garden well. This ensures moisture enters the soil rather than being blocked by the mulch itself.
3. Spread a 5–8 cm layer: This is the optimal thickness — enough to block weeds and retain moisture, but not so heavy that it prevents rainwater and irrigation from penetrating.
4. Leave space from the trunk: As mentioned in the tip — 5–10 cm clear around every trunk and stem.
5. Renew annually: Bark decomposes, and over time, the mulch layer thins out. Add a shallow layer at the start of every summer to maintain the effect.

Mulch for pots and balconies — yes, it works exactly the same

Even in a pot, a thin 2–3 cm layer on the soil surface reduces evaporation and extends the time between waterings. This is especially useful in summer when pots dry out very quickly. For large pots on a patio or in the garden, a layer of bark also adds a clean, uniform look.

Important: Pine bark is slightly acidic — this is excellent for acid-loving plants such as ferns, hydrangeas, and rosemary. For plants that prefer more alkaline soil, you can add a little compost to the soil to balance the pH.

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Mulch, tuff, and perlite — what goes where?

These three materials can sometimes be confusing — here is a quick guide:

• Bark chips: For mulching the top layer in gardens and pots. Organic, beautiful, decomposes slowly, and improves soil.
• Red tuff: For drainage at the bottom of a pot and for mulching succulents and cacti that love dryness. Does not decompose, excellent drainage, decorative look.
• Perlite: Mixed into the soil (not on top) to improve aeration and drainage. Not suitable for mulching.

In an average Israeli garden, the three materials complement each other: perlite inside the potting mix, tuff at the bottom of the pot, and bark chips on the top layer.

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"The best garden is one that grows on its own — even when you're not there." — Deco Garden Team

Frequently asked questions about bark mulch

Written by the Deco Garden landscaping team · Practical experience in gardening, houseplants, and growing materials