Showing posts with label sustainable fibre growing. Show all posts
Showing posts with label sustainable fibre growing. Show all posts

Monday, April 14, 2014

Shooting Bamboo for the Pantry

You don't have to shoot bamboo, though when you live in the subtropics, this time of year you would probably want to.This time last year, I spent some time with a dear friend who lives in the hills behind Mullumbimby.The micro climate there allows her to grow an amazing variety of food crops from stone fruit to sub tropical species.

In April her giant edible bamboo is sending up massive shoots that grow as you watch. I was happy to spend an afternoon harvesting and processing them.

Thick gloves, long sleeves and a machete are essential. Theses shoots are tough and covered in itchy hairs.

After trimming them at ground level, the outer leaves are stripped and the shoots cut in half lengthwise.


This exposes the wonderful pattern of chambers that will stretch to become the hollow interior of the bamboo stems that make them so structurally strong and flexible.. It made me want to rush off for some
paint and paper to do some block printing with them.


They are then cooked in salted water until they are softened and a creamy yellow colour.








Drained and rinsed, they are then ready to use, cryvac or bottle. They keep well in the fridge.







My respect for bamboo has grown another notch. Fast growing without fertilisers or chemicals, we have have the most fabulous source of  material for making structures, bowls and plates, simple garden stakes, woven baskets, fabric, fuel, food and medicine. It can stabilise slopes and riverbanks and there are varieties to suit all climates. Investigate this fabulous resource further:

http://www.bamboobody.com.au/ plants, pictures and a data base
http://www.bambooweb.info/  How why and what of bamboo



Monday, September 27, 2010

Knitting with grass


Much as I love spring, I get a bit sad about the longer days as it usually marks the end of the long evenings of knitting. This year I spotted has an amazing range of bamboo and bamboo blended yarns at our fabulous local wool shop that could keep the obsession going a bit longer.

I first fell in love with bamboo fibre when I discovered bamboo t shirts. It was soft, light weight and  drapes like silk. It is highly absorbent .and hypo allergenic. Bamboo, hemp, Tencel™ and cupro are all natural plant based fibres. Bamboo in particular is of special interest.

Because bamboo is a fast growing clumping grass, it can be harvested without the need to replant every year as with cotton and hemp. It grows faster than all the other natural fibre plants and is tolerant of drought and flood, holds soils to prevent erosion from runoff and gives a huge yield per acre without the need for pesticides or fertilisers. 

Unfortunately some processors use chemicals such as caustic soda and carbon disulphide to extract the cellulose from the plant material.. This is no different from the treatments given to cotton waste and other cellulose based fibres, including the treatment of organically grown cotton.  This is changing with the lyocell processing used to make Tencel ™ which uses chemicals in a closed loop process where over 99% of the chemicals are recycled for reuse.  It is possible to process the yarn without chemicals and the garment or yarn should be labelled as such.

The bamboo currently used for yarn is Moso bamboo, a variety from China that can grow up to a metre a day as a timber source. The Chinese have recognised that bamboo has a unique agent they call ‘kun’ that has anti bacterial and antifungal qualities that prevents odour causing bacteria to grow. That’s got to make for less washing! It is the same antimicrobial agent that makes bamboo resistant to pests and diseases (though has no effect on pandas!) Better still, the fibres are more wrinkle resistant while washing and that means less ironing too. The yarn is thermal regulating – keeps you warm in winter and cool in summer. While bamboo is touted as hypo allergenic, chemical residues may cause reactions on sensitive skin but can be avoided by always washing new garments thoroughly before wearing.

This is a product I heartily endorse. The problems in processing are being addressed and I feel these problems are outweighed by its sustainability and the fact that it can be grown, chemically free without the need for large machinery or soil tillage in a range of environments. Such are the desired qualities of bamboo that nano technology is being developed that traps particles of bamboo charcoal into other fibres for use in socks and blankets. Won’t it be great when you don’t have to look outside for the boys’ dirty socks?

Meanwhile, back at the farm...I will continue to knit with my beautiful yarn.

A free pattern is available on my web site and here’s the Margaret River Wool Company.

Knit on!