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canna coco weed grow

Canna coco weed grow

Coco was initially seen as a replacement for peat in greenhouse production – coco does not have the water repellence of dry peat, or the low pH values. However in the early days of experimentation with coco growing substrates many problems were found due to inconsistency of the product. Many coconut sources were retted in seawater and contaminated with very high levels of sodium and unpredictable levels of naturally occurring potassium.

Loose coco placed into growing pots or containers can be easily inspected for moisture level by checking the appearance of the top of the substrate or by feeling the moisture level of the coco just below the surface, this is more difficult in wrapped coco grow slabs. The coco slab only needs to be placed in position, slits cut in the plastic sleeve and water poured in – the coco expands and can be planted out with no further effort. The disadvantage of slabs is that they need a very level surface to sit on so that drainage is even and they don’t provide the depth of growing substrate that a planter bag or pot can for larger plants.

Noguera P, Abad M, Puchadea R, Noguera V, Maquiera A and Martinex J, 1907. Physical and chemical properties of coir waste and their relation to plant growth. Acta Hort. 450: 365-373.

Tips and tricks when using coco

These days good quality coco has proven to be a superior growth substrate for a large number of different crops, with the advantage of being from a renewable and environmentally sound resource.

There are many different types of coco products on the market. The husk of coconuts yields not only very coarse long fibres which are used to make a wide range of products such as rope, carpets, mats, brushes, basket liners and others, but between these coarse fibres is a corky substance called coir pith, coir dust, coco peat or coir peat. Many grades of horticultural coco exist and some have been specifically designed for different plants and systems. The very fine particle size of coir dust retains a high level of moisture and this is suited to seed raising and for smaller seedlings and plants. While a high moisture holding content in fine coco dust is an advantage in some situations, it can create problems with over saturation of the root zone. Grades of coco often used in slabs may consist of larger particles or `flakes’ of coco which allow a good degree of drainage and resist packing down over time as commonly occurs on substrates such as peat.

Coco fibre is also the term often used to refer to the general purpose grade of coco which is ideal for growing longer term crops under soilless cultivation. Worldwide coco is used for soilless crops such as tomatoes, peppers, cucumber, melons, aubergines, ornamentals, cut flowers and many others because the structure of the coco does not break down over the time frame these longer term crops are grown for. Thus high rates of root zone aeration and moisture retention are typical in both short and long term soilless crops and this results in high yields and good root health.

Coco, a superior growth media

However, high quality horticultural coco is now recognised as a superior growth media for soilless crops on both a small and commercial scale and many of the initial problems have been overcome by correct processing of the raw product and adjustment or pre treatment before packaging. High quality coco substrates on the market for soilless cropping have often been specifically processed for this use right from the point of removal from the coconuts, through to preconditioning, buffering and pre treatment.

Coco also comes in a range of different products – from small to large compressed `bricks’ to `grow slabs’ to pre expanded ready to use, bagged product. Compressed bricks of coco fibre mean the cost of shipment can be kept to a minimum, a typical 5Kg block of compressed coco can be expanded in water to over 65 litres of ready to use growing substrate. Pre wrapped slabs of compressed coco can be less than one inch thick but when expanded with water within their plastic sleeve give a full sized growing slab comparable in volume to rockwool. The advantage of coco bricks is that once expanded the media can be used to fill any size or shape of growing bed, pot or bag, the disadvantage is that a time is required for the media to fully expand and some labour is needed to fill the growing plots.

Canna coco weed grow

After transplanting weed plants to a larger container water heavily and then let the coco nearly dry out before rewatering a few times to encourage root growth. Roots won’t grow unless they’re reaching to find water, so overwatering early on will prevent your roots from growing as strong which will impact yields later.

Water to 15-20% runoff to prevent nutrient salt buildup. Ph should be 5.8–6.0.

Feed chart for growing seeds or rooting clones

We have been having great luck using the “light” feeding schedule from the Canna Coco website for many strains we grow. Hungrier strains require you to ramp up nutrient levels slightly. But we’ve made some adjustments to the basic feeding recommendations to the Canna Coco feed schedule they provide based on our experience growing a bunch of 8-9 week indica strains.

It’s important to flush marijuana plants during the final 7-10 days of flower. That means stopping using Canna A&B or any other NPK nutrients. If you’re running the full Canna Coco line of nutrients you can continue using Canna Boost during flush with Ph’d water.

Feed chart for vegetative growth stage

The Canna feeding chart is based on an 8-week flowering strain. The length of flowering for your specific strain may vary between 6-14 weeks. Most Indica hubrids for indoor growing are 8-9. You’ll need to modify your feed schedule a bit if you’re growing a longer-running strain.