Hester Winterbourne wrote:The proof is in the pudding - do you get good results?
Mike Barkley wrote:Sweet potatoes don't seem to need very fertile or loose soil. This pic is of my first sweet potato attempt. Slips were planted directly in hard packed clay & ignored until harvest. I have since grown them in looser soil but not any more fertile. The overall yield was about the same but the potatoes were more uniform in size & less gnarly looking.
I read somewhere that sweet potatoes can be grown directly in straw. Never tried that but this year I planted 200 in a mix of straw, various soils, mulched wood chips with cow manure,& leaves. So far so good but they do seem to be needing a bit of extra nitrogen. I think the thick layer of mulch material is locking up the nitrogen. Planted about 50 more in other parts of the garden with less improved soil as insurance against total sweet potato crop failure. I have started using sweet potatoes & peanuts as a first crop in new areas to help prepare the soil for future use by needier veggies.Variety is the spice of life!!! This was my main source this year. Good luck.