Orchiata 18-25mm Orchid Bark
Available in 3L, 5L, 10L & 35L bags.
*Note – Tasmania restricts entry of bark into the state. We cannot ship to TAS – click below for more info.
Orchiata orchid bark is a very HIGH QUALITY substrate made using 100% New Zealand Pinus radiata bark. The bark is collected using sustainable best practice methods from renewable, manmade forests ensuring availability well into the future. Whilst ageing the bark, beneficial micro-organisms are active and any pathogens are taken out.
Orchiata bark is graded to give a uniform and very consistent result that is famous across the world for its durability and longevity.
The unique structure of Orchiata orchid bark gives excellent drainage and aeration for orchid roots, helping to prevent root rot and other issues. With a pH of around 5.5-6.5, the Orchiata 18-25mm orchid bark is ideal for most mature orchids or any orchid that needs a greater AFP. It can be used in a variety of growing conditions, making it a fantastic product for orchid growers.
- Excellent drainage and aeration
- Orchiata 18-25mm Orchid Bark suits mature orchids
- AFP 51-55%; WHC 57%
- Plant Safe – Bark won’t break down or release toxins
12-18mm SpecificationsÂ
Average Size – 18-25mm
Air Fill Porosity – 51-55%
Water Holding Capacity – 57%
PH – 5.5-6.5
EC – <0.3 mS/cm
Moisture – <15%
Orchiata Bark 18-25mm 35 Litre Bag
Choosing the Right Orchid Bark Grade
Orchids thrive when their roots get the right balance of air, moisture, and support. That’s why selecting the correct bark grade is so important. Each grade is matched to the size and needs of different orchid types:
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3–6mm Precision or 6–9mm Classic – Best for delicate seedlings such as Phragmipedium, Miltoniopsis, and members of the Oncidiinae group.
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9–12mm Power – Suited to seedlings of Phalaenopsis, Paphiopedilum, and Cattleya.
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12–18mm Power Plus – Ideal for mature orchids like Phalaenopsis, Cattleya, and Vanda.
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18–25mm Super – Designed for extra-large pots with robust orchids, including Vanda and Cattleya.
💡 These measurements refer to average particle sizes. Choosing the right bark grade helps ensure proper aeration, moisture retention, and strong root development—setting your orchids up for long-term success.
What to do if I see Fungi on ORCHIATA
Micro-organisms are an important part of Orchiata and fungi species are regularly isolated from these products. These fungi are generally saprophytic fungi which live off of decaying organic matter, and as Orchiata is created using a natural aging process caused by microbial degradation these organisms will always occur in this growing media. The majority of the time, fungi are not really visible. However when conditions are right for one or more species to grow, mycelia becomes more visible. It does not tend to cause plant disease but instead helps to protect plant roots and stems from pathogen attack.
RESOURCES:
Click below to read more in an article written by the makers of Orchiata Bark.
Fungi on ORCHIATA
See our September article Using Orchid Bark in Potting Mixes.
Using Orchid Bark in Potting Mixes
Nursery and Garden Supplies
Nursery and Garden Supplies is a family owned and run Queensland business. Our goal is to provide you with the best service, highly competitive prices and the highest quality products.
We kindly request that all bank transfer payments are made within 2 days of making your purchase.
WE ARE LOOKING FORWARD TO HELPING YOU REACH YOUR GOALS IN GARDENING AND LANDSCAPING ANY WAY THAT WE CAN!
Please note: This sale is for the product stated only, any other item which may be pictured is not included, but may or may not be available separately on this website.
Pick-up welcomed from Burleigh Heads for local buyers.
