Growing Sweet Potato, also Kumara

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25 Mar 24 Peter (New Zealand - temperate climate)
Planted 10 kumera slips in October 2023.... Harvested 50% of them 5 in March 2024....massive green foliage but sadly 6small (very small) finger sized harvest kumera is the only result...starting to get cooler but leaves still dark I leave them in till the weather of leaves change. ( Auckland grower)
07 Apr 24 Marc (New Zealand - temperate climate)
leave Kumara in the ground at least until mid April. Leaves start to die off or in Auckland slow down in growth. Make sure the edges of the bed are well mulched, this will keep the moisture in the ground and the top soil cool (cooler). I harvest the orange (Beaumont) ones first, followed by the red, then purple and gold as last. there is about a week between harvests. Allow the kumara to dry before storage other wise they will rot. Keep them well protected from rats, my first red kumara harvest was approx 20kg until the rats consumed them in 4 nights to 2 kg.
29 Mar 24 Celeste Archer (Canada - Zone 7b Mild Temperate climate)
Harvest once about HALF of the leaves start to fall over and die off (turn yellow) -- HOWEVER I'm not sure if you planted at the being of October or the end. Given good growing conditions it should take about 120 days -- if you planted at the end October then that is about 120 days.... but it could take longer -- and since the leaves have not fallen over, then I would say, it will take more time. If you planted at the beginning of October, then you are taking a lot of days -- and it could be that the growing conditions have not been optimal for the whole time.... and I would still wait for leaves to fall over... but I would start to wonder if perhaps for some reason all the conditions that your plant needs to have met in order to set tubers have not been met (nutrition, soil type/ph, water, sun light, temperatures etc.). Same rule for potatoes, harvest once the leaves started falling over and turning yellow. That is to say: as long as the leaves are a upright and green they are still collecting light and storing energy (making tubers - and making them larger)
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