Professional horticulture · Cane fruit
Raspberry and Blackberry Coco Substrate Manufacturer
Coco substrate for cane fruit in pots and planter bags
Raspberry and blackberry moved into substrate for a specific reason: soil-borne root disease. That history shapes everything about what a cane fruit substrate has to do — drain, hold its structure for more than one season, and carry no residual salt.
Substrate requirements
What cane fruit asks of its substrate
Growers who lost plantations to Phytophthora root rot went to pots and bags to get the crop out of infected ground and to take control of the root zone.
- Air-filled porosity 21.0 – 25.06 % Where cane fruit sits in the published range. Water collects at the base of any deep container.
- Container volume 5 – 10 L per plant Relatively deep, which is exactly why the base of the profile has to keep moving air.
- Crop life Two seasons or longer The material has to resist slumping and keep its air space rather than collapsing after one wet winter.
- Salt sensitivity Between tomato and blueberry Residual sodium shows up as reduced vigour rather than as an obvious failure.
A substrate that holds too much at the bottom recreates exactly the conditions the grower moved to substrate to escape.
Reference blends
Which coco blend suits raspberry and blackberry
Three of the five reference blends are relevant to cane fruit in pots.
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Usual starting point
50 : 50
Cocopeat to chip
- Water holding capacity
- 5.66 L/kg
- Air-filled porosity
- 21.0 %
- WaterLess buffer
- AirMore air
Our usual starting point for cane fruit in pots. It drains freely enough to protect the root zone while holding enough buffer that a missed irrigation on a hot day does not check the crop.
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20 : 80
Cocopeat to chip
- Water holding capacity
- 5.42 L/kg
- Air-filled porosity
- 25.06 %
- WaterSmall working buffer
- AirAir through the whole profile
Suits high-rainfall regions, larger containers, tunnels with poor airflow, and any site where root disease has been a problem before. More air, less buffer, and a substrate that empties quickly after heavy rain.
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80 : 20
Cocopeat to chip
- Water holding capacity
- 6.73 L/kg
- Air-filled porosity
- 10.2 %
- WaterRetentive base
- AirEnough chip to keep air moving
Worth considering only in genuinely dry climates with tight irrigation control and smaller pots, where retention is doing more work than drainage.
Cane fruit tolerates a wider pH range than blueberry does, so our natural 5.5 to 6.8 is usually workable without acidification. That is the main practical difference between growing cane fruit and blueberry on coco.
Low EC matters. We supply washed low-EC material for cane fruit as standard. If you buffer in-house, tell us and we will supply unbuffered.
EC figures use the 1:1.5 volume extract method.
Root zone
Why the base of a deep container decides the crop
Water collects at the base of any deep container, and in a perennial crop it collects there for years rather than months.
50 : 50 cocopeat to chip — the blend this page leads with, drawn in proportion
- Fine pith fraction Holds the water. Deeper in the profile as the fine fraction rises.
- Coarse chip fraction Holds the air. The pore space between the flakes is what keeps the profile open.
- Root zone and drainage Roots work through both fractions; what the profile cannot hold leaves at the base.
- 01 Drainage The first requirement. A substrate holding too much at the bottom recreates the conditions the grower left the soil to escape.
- 02 Structure over time A cane structure may occupy the same substrate for two seasons or longer.
- 03 Chip content What resists slumping and holds the air space open through a wet winter.
- 04 Residual salt Less demanding than blueberry, more sensitive than tomato. It shows as reduced vigour.
- 05 pH Our natural 5.5 to 6.8 is usually workable without acidification, unlike blueberry.
Tell us how long you intend to keep the crop in the same substrate and we will factor it into the recommendation.
Made to order
Pots, bags and formats for cane fruit
Cane fruit is grown three ways on substrate, and we supply for all of them.
- Open top planter bags Substrate and container in one unit, placed and hydrated in position.
- Compressed 5 kg blocks Expand to 70 to 80 litres and hydrate into your own pots on site.
- Coco chips Graded 6–12, 12–18 or 18–25 mm, loose or blended to a specified ratio.
- Bulk loose substrate For growers with hydration and filling equipment.
- Pot fill volume Compression adjusted to the litreage you plan around.
- Drainage hole layout Count, diameter and position to your specification.
- Film and print Plain, or your own artwork.
The substrate in service
A container filled with a coco blend for cane fruit: free-draining at the base, with enough volume to hold a crop through its fruiting year.
- Open top planter bags Substrate and container in one unit, placed and hydrated in position.
- Compressed 5 kg blocks Expand to 70 to 80 litres and hydrate into your own pots on site.
- Coco chips Graded 6–12, 12–18 or 18–25 mm, loose or blended to a specified ratio.
Manufacturing
We are a manufacturer, not a trader
Blending, compression and packing happen at our own facility in Peravurani, Thanjavur district, Tamil Nadu. Visitors are welcome.
Staging Genuine CocoSeller factory photograph required.
Questions
Cane fruit substrate questions growers ask
We are a manufacturer. Blending, compression and packing happen at our own facility in Peravurani, Thanjavur district, Tamil Nadu. Visitors are welcome.
A 50:50 cocopeat to chip blend at 21% air-filled porosity is our usual starting point. A 20:80 blend at 25.06% suits high-rainfall regions, larger containers, or sites with a history of root disease.
Usually not. Raspberry and blackberry tolerate a wider pH range than blueberry, so our natural 5.5 to 6.8 is generally workable without acidification. If you grow both crops, that is the main practical difference to plan around.
Chip content is what determines this. A blend with meaningful chip resists slumping and holds its air space through a wet winter far better than straight pith. Tell us how long you intend to keep the crop in the same substrate and we will factor it into the recommendation.
There is no minimum. We will take a single container. That means you can trial a block of tunnels before committing the farm, which most suppliers will not let you do.
The 1:1.5 volume extract method. If your specification uses saturated media extract, tell us and we will supply the equivalent figure. The two differ by roughly a factor of two.
Yes. Every container ships with the batch test report for that exact production lot, and we retain a sealed duplicate here under the same batch number, so any question about a delivery can be checked against physical material.
Build your cane fruit substrate around your container system.
Tell us your container size, plant density and irrigation frequency, and we will propose a specification.