Wednesday, April 5, 2017

The Best Seed Starting Mix for Giant Pumpkin Seeds

Sometimes I get asked what I use for my seed starting mixture.  If you dig deep enough into this blog you'll see that I've done testing with different seed start mixtures.   I prefer a soil less mixture.  Some of the best genetic pumpkin seeds can be hard to come by so I prefer a medium other than soil so I can be sure that no pathogens are in the mixture.  Pro Mix BX is my favorite seed starting mixture, but so far it has been hard to find in Utah.  I had one bag, but that wasn't enough for my two pots, so I'm trying coco hair this time in a couple of pots, which I've read good thing about.  

In my pots I'll add some humic acid, NPK Industries Microbes Grow formula and this year I also added some Lebanon Turf Roots (I bought it for the landscaping plants I've started indoors).   In those two substances there is a good mixture of myco and beneficial bacteria along with micro amounts of different nutrients.   I don't put any fertilizer in the pots.   Everything the plant will need for three weeks are in the seed starting mixture and fertilizer is not necessary.  I won't give the pumpkin plants any fertilizer until they are planted outdoors in the soil.  Actually I do give the plants some diluted kelp in the pots, but that is about it.

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