Mark,
Kevin talks about harvesting shoots as soon as they pop out of the ground and that is true enough for running bamboos. However, Latiflorus is a clumper and so the procedure is a bit different. I usually harvest a shoot when its length is around 1.5 to maybe 3 tines its diameter. As Kevin implies, the earlier the better as shoots tend to get stringier and more bitter as they elongate. But it does depend a bit on the species and who you are selling to. Different cultures have different ideas on what is an ideal shoot. I haven’t tried to sell any Latiflorus as I only have one clump
I use a sharpened spade to harvest shoots. Try to push it in as low on the shoot as possible. If it won’t go in easily then move it up a bit and try again.
After harvesting, use a sharp knife to trim just enough off the cut end to git rid of any dirt and peel off any cut culm sheaths to make the shoot look tidy. Pack the shoots neatly. Presentation is important. A broccoli box works well for small to medium shoots but I am not sure what I would use for the really big shoots my Latiflorus produces.
I have heard about shoots getting hot after harvesting but haven’t noticed it myself. Still, they do keep much better if refrigerated as soon as possible. I also pack shoots with some ice (often a frozen milk or juice bottle full of water) for transporting.
As for where to sell them, it depends a lot on how much you have. For Earthcare Farm, it is not economic to take the small quantities we produce to the Brisbane markets. We try to sell direct to restaurants and to some Asian grocers. Farmers markets and your local fruit shop are worth a try. It is a good idea to have leaflets explaining how to prepare the shoot and a recipe or two. Cooked samples for people to taste are also a good aid to selling at markets.
Barry, O’Connell