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Bio Leaf ORCHID Potting Mix - MEDIUM - 5 litre

$20.00 NZD

*Please note: Limit maximum 10 litres total of potting mix per order before overweight shipping applies*

You can add other items to the same order, heavy limit only applies to potting mix and other items marked heavy. You can order more than the limit above in one order. If you order over 10 litres total in one order your order will be put on hold and I'll get in touch to arrange payment for overweight shipping (rates are here)

Also available in 2 litres >

What do orchids need in potting mix?

Although one of the broadest plant families with over 28,000 species, a much smaller number are commercially available, such as Cattleya, Dendrobium, Oncidium and Phalaenopsis. These orchids share the requirement for a more open, light-weight, free-draining mix (one reason indoor plant hobbyists also love orchid mix for their aroids) that still retains moisture without waterlogging roots. Regular indoor plant mixes are too fine and the water retention too high.

What makes Bio Leaf perfect for orchids?

Welcome to the next level in orchid care. Developed by award-winning orchid growers with years of testing and refinement in collaboration with respected collectors in the New Zealand orchid community.  

Bio Leaf Orchid Potting Mix is a chunky, custom blend. It drains quickly, retaining the right amount of moisture without sacrificing superb aeration. Water flows freely over roots. Avoids 'wet feet' reducing the chance of root rot. Provides extra protection from over-watering. Avoids suffocating roots. Unlike others, Bio Leaf takes a long, long time to break down. Expect at least 3 years before repotting is required in normal conditions.  

Should you get the Medium or the Coarse blend?

MEDIUM is the best match for finer-rooted orchids and younger or smaller orchids in smaller pots around 5cm to 9cm, as well as orchids being transplanted from a flask. Examples of finer-rooted orchids include oncidiums, miltoniopsis, paphiopedilums (slipper orchids), odontoglossums and jewel orchids. Nugget size averages 3mm to 8mm. 

COARSE is the best match for thicker roots, orchids with pseudobulbs and orchids that require less moisture, as well as orchids in larger pots around 9cm to 20cm+ with 8mm to 20mm nugget size. Examples of thicker-rooted orchids include cymbidiums, cattleyas, phalaenopsis, zygopetalums and smaller (compact) type vandas.

An example of finer roots from


And an example of thicker roots from 



What's in the bag?


Organic nutrients

Bio Leaf Orchid includes a proprietary blend of bioactive organic nutrients including calcium and silica. The blend provides a mix of slow- and fast-release orchid-specific supplementary nutrients that 'fill in the blanks' for what fertilisers are missing. 

Benefits include 
reduced transplant shock, stronger roots, stems and foliage,  and faster recovery after repotting. You remain in control of what you feed and when, as Bio Leaf is free of slow-release fertiliser

Orchid bark

Premium, export-quality orchid bark sourced in NZ. Rated as one of the best orchid bark sources available. Sourced from 25 year old trees, allowing time for bark to thicken and 'harden up' resulting in bark that takes much longer to break down. Clean and sterile. Harder, slow-to-decompose grade lasts years. Increases soil aerationresists compacting and adds drainage while holding water for slow-release. 


Natural, volcanic rock. Keeps its shape even when waterlogged. Keeps soil loose. Adds aeration. Keeps water moving. Naturally porous. Holds water roughly twice as long as bark for slow, steady release. Compared to perlite, pumice costs more and is the superior choice for orchids, offering better drainage and compact-resistance than perlite.

Fern fibre

Superb results for orchids, aroids, hoya, ferns and other epiphytes. Natural, airy and long lasting. Contains a lot of air but also holds water longer than many free-draining substrates. Distributes moisture more evenly throughout the root zone. Sustainably harvested in NZ.

Hardwood horticultural charcoal

The over-waterers and worried-orchid-parent's best friend. Increases aeration and adds drainage. Natural antibacterial and antifungal properties. Creates a more favourable environment for good bacteria and beneficial microbes. Helps balance soil pH to keep the mix 'sweet'. Note Bio Leaf avoids activated charcoal, which can absorb more fertiliser than normal charcoal.

Before repotting

Empty into a container, pour on a little water and mix thoroughly. Add just enough moisture to coat media lightly. It is normal for components to settle into layers in the bag, so you want to return to an evenly distributed mix before repotting. A slightly moist medium also makes it easier to pack in-between roots when repotting.

Customer Reviews

Based on 4 reviews

Love this product and so do my plants

Mieke van Dam
Good quality

Although a finer mix than the coarse blend, it is still has a nice open structure.

Reem Soliman

I was so concerned about what to use for my orchid pot. I checked online and most of the reviews about available brands in the market were not really great. This mix just amazing, and my orchid seems happy and healthy. I got new leaf... exciting 😃... Many thanks Anna for your guidance and for being so helpful.

Great potting mix for orchids.

I'm really happy with this potting mix, it drains easily and my orchids have been doing great since the switch. I've alo potted them in pots that allow more airflow around their roots and am far less concerned about root rot.

Love That Leaf shipped asap after the holiday period and are amazing at communicating clearly through their website and emails.

Shipping and Delivery FAQ's


 is FREE for all orders over $80. Orders under $80: Auckland Standard $5, signature required $7, or rural $9. Rest of the North Island and the South Island: Standard $7, signature required $9, or rural $11. Plants, fragile and overweight/oversize parcels have separate rates. 


Stock levels are live. Everything showing in stock online, is in stock right here, right now, in Auckland New Zealand, ready to ship. No drop shipping from other countries. No delays.



Orders ship every week-day, Monday to Friday. Orders placed before 7pm Monday to Thursday leave the next morning. Zoom zoom! Fri, Sat & Sun orders leave Monday (or the next working day).



Normal delivery is 1 to 3 working days. Rural and some regions can take a day or 2 longer, depending on where you're based (orders ship from Auckland). 

More about shipping and delivery > 



"I can’t recommend love that leaf highly enough. I’ve bought a couple of times so far and on both occasions Anna has been more helpful than I could possibly wish for. 5 stars! Don’t hesitate to order from Love That Leaf. Excellent service and super fast delivery." Rob Gordon

Why choose to buy from Love That Leaf?


When you buy from me you're supporting a small, local, family business. Love That Leaf is a registered NZ business, based in Auckland. 


You'll get your planty goodies super fast. Everything showing in stock on the website is right here in NZ, in stock, ready to ship. I ship daily, Monday to Friday. Orders normally leave the courier the same or next working day. Zoom zoom!


I stand by everything I sell and will always help put right anything that goes wrong. When you choose to buy from a registered NZ business (like me), you're also covered by the Consumer Guarantees Act, unlike overseas purchases or private sales, where you can end up stuck with no rights if anything arrives damaged or stops working.


I won't go AWOL on you. I'm here for support and advice anytime, even if you haven't bought from me yet. A lot of lovely people helped me along my plant journey, and I want to pay it forward. Please don't hesitate to ask for help. No obligation at all to purchase. 


"Super impressed with this business. Something that is lost nowadays, is customer service. This however is not the case with Anna from Love that Leaf. Very happy with my purchase, very happy with the product information provided and very happy with the quick shipping and great packaging. Thanks!" Melayna Anderson

FREE shipping for orders $80+
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100% NZ In stock in NZ ready to ship
Fast delivery 1 to 2 days for most of NZ
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100% NZ NZ owned. All in stock locally.
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