I just planted pumpkin in 10 spots with 2 seeds at each spot. Only 2 spots had 2 plants germination. Sometimes it is for germination reasons. I basically had the same result from apple cucumbers.
Or transplant one of the pumpkin to another spot and grow it also. When planting 2-3 seeds close together think about planting them 100-150mm apart so that if you want to move them then you can retain a fair amount of soil around the roots when moving them, helps with transplant shock.
This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department.
The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
We cannot help if you are overrun by giant slugs.