Popi,

I helped on the plant stall at our school fete, where we received donations from local nurseries and a couple gave us plants in biodegradable pots. They looked like thick cardboard. Perhaps if you contact a large nursery they may be able to steer you in the direction of suppliers.
Good luck,
Halina

Bunnings stock ones made from recycled paper that break down quite quickly. I also use egg cartons for seedlings - just cut them into 12 little 'pots' after they plants have reached the size you want and plant the whole thing. I use coir seedling mix too. This is a good moisture holder after the plant has been put in the ground and stops stressing the roots.

Thanks for the comments.

I'll go and look for the Bunnings one, sounds interesting. It would be good to make more use of these sorts of pots, to stop all that plastic being produced.

I've had experience with those coir Eco style pots. They're certainly biodegradable but not very durable. IME the moment you put a plant in them the constant wetting/drying coupled with root growth causes them to crack long before they start to degrade. You also have to be reasonably delicate when you handle them. If your bamboo pots last for 6 months without cracking I would have thought you've found a decent biodegradeable pot compared to what else is available.

yes, I have noticed a crack on my bamboo pot and I have only had a small cutting in it for a week.

If I was buying a pot in bunnings i would be looking for something to put a plant INTO, and would expect the pot to last several years. If I was buying seedlings or small plants from bunnings, to put in the garden, then I MIGHT like it to be in a biodegradeable pot. (Actually I rarely ever throw away a pot, I keep them and pot up more plants).
The seedling trays in particular, would be better if they were made out of biodegradeable materials.
I don't see how Bunnings would be interested in these pots, as I would have thought they purchased their plants from other sources?
I do object to Bunnings speaking or Australia on the matter of biodegradeable materials. I think it more likely they would only be interested if the prices were far less than the manufactuing costs.
Your pots are very elegant. I think I would rather they lasted longer :-)

Might be better to approach the actual maker of the plastic pots, rather than Bunnings.

All the best with your product.