We have three different coloured buddleja bushes, dotted around the front yard and no dig garden.

They grow freely, so much so that the two in the front yarded area where we keep the logs, left me with a front room full of butterflies one day, as the heat on the logs caused all the ones I'd missed, to hatch out!

Anyways, I let them grow wild, cutting them down after flowering every September. I chop all the wood into small sticks and place them in an old 25kg dog food bag, which is more of a sack. This then gets put into the recycled greenhouse and left.

Come October time, they are dried out and I have weeks of kindling, for free!