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Orchiata Bark 18-25mm

3L, 5L, 10L & 35L Bags

🌿 Orchiata Bark is available in other bark particle sizes too!

Available in 6-9mm, 9-12mm, 12-16mm & 18-25mm.

(sometimes 3-6mm is available on request)

Give your plants the best with Orchiata – the world’s most trusted orchid bark.

✔ Premium Quality – made from 100% sustainably harvested New Zealand Pinus radiata bark from renewable forests
✔ Naturally Aged – beneficial microbes work to remove pathogens while enhancing bark structure
✔ Consistent & Reliable – carefully graded for uniform particle size (18-25mm)
✔ Ideal for Mature Orchids – perfect for plants needing higher air-fill porosity (AFP 51–55%)
✔ Excellent Drainage & Aeration – reduces risk of root rot and ensures healthy root growth
✔ Long-Lasting & Plant Safe – bark won’t break down quickly or release harmful toxins
✔ Balanced pH (5.5–6.5) – supports healthy nutrient uptake across a wide range of orchids

Trusted by growers worldwide, Orchiata delivers durability, longevity, and outstanding results in every bag.

⚠️ Important Note: Due to quarantine restrictions, we cannot ship bark products to Tasmania.

Choose Orchiata 18-25mm – the proven choice for thriving, long-lived orchids.

Popular examples of aroids Monstera (Swiss cheese plant), Philodendron, Peace Lily (Spathiphyllum), Anthurium, and Aglaonema (Chinese evergreen).

Specifications 

Average Size – 18-25mm

Air Fill Porosity – approx. 51-55%

Water Holding Capacity – 57%

PH – 5.5-6.5

EC – <0.3 mS/cm

Moisture – <15%

35 Litre bag

What to do if I see Fungi on my bark

🌱 Beneficial Micro-Organisms in Orchiata

Orchiata isn’t just a growing media – it’s a living environment. During the natural aging process, beneficial fungi develop as part of the bark’s microbial balance. These are mostly saprophytic fungi, which live on decaying organic matter and do not harm your plants.

✔ Naturally Protective – these fungi can help shield orchid roots and stems from harmful pathogens
✔ Healthy Root Zone – supports strong growth by creating a balanced micro-ecosystem
✔ Rarely Visible – fungi are usually microscopic, though white mycelia may appear when conditions are ideal

Rather than being a problem, these micro-organisms are part of what makes Orchiata unique – helping your orchids thrive naturally.

Click here for an explanation from the manufacturer of Orchiata Bark

To see the complete range of associated growing products, click the picture below;