Where are you buying your seed potatoes they all seem to be coming from other states do they produce seed potato in Queensland.The big green shed seem to be over charging by selling only one kilo seed potatoes at excessive prices the same potatoes in 5 kg packages are a lot cheaper looking at Internet and e bay but interstate postage makes expensive .
If you are buying eating potatoes to plant washed potatoes grow just as well as unwashed as long as not chemically treated to stop sprouting may even sprout quicker as i have purchased baby kestrel potatoes from aldi half kilo bags 8 to 12 potatoes per half kilo i look for the 10 to 12 per bags and they seem to sprout quicker then the ones i harvest that seem to take forever to sprout but it may be how long after planting or cold storage that makes them sprout quicker.
Produce stores probably have them by the sack. If there's any left; ours in Rothwell has closed down.
Yes i saw they closed down where do you go now.
Not checked it out yet but there is a produce store on the Eastern Service Road (old highway) at Burpengary near the caravan, RV yards. They are supposed stockists of the Mt Sylvia minerals.