I'm curious about arrowroot. Do you grow from seed, do you like the taste, what experiences can you share?
Yes I'm after Leren.
I have both types of arrowroot - Canna edulis (Queensland arrowroot) and Uraro (Philippine arrowroot) Maranta arundinacea. Have bought them off a random seller at the weekend market (Sidcor Sunday Market) and I've discovered as long as you have consistently moist soil, you can harvest the mature tubers by brushing off the loose soil and twisting off bigger rhizomes and both plants will just bounce back - watering with compost tea/bokashi tea might help them bounce back faster after an exploratory digging.
You can actually take rhizomes say in clumps of two/three each then replant them if you want to fill up a bigger area - doesn't matter if they're mature or not they will grow provided the weather is favourable.
Uraro starch or even the boiled (and peeled) root is actually very bland
but I'm very fond uraro cookies so I keep replanting them.
Queensland arrowroot (canna) can be bitter in stir fries (or maybe it's because I used a very gnarly, old rhizome) so I'd recommend an overnight soak, peel, preboil (throw away the water you used to boil the canna rhizome in) then cut/grate and use in soups instead.
A quick uraro growing guide:
http://www.pinoybisnes.com/agri-business/arrowroot-production-guide/