I am growing some if not all of my spinach in the basement this year for the simple reason that we eat a tremendous amount of spinach and I only have so much room in the garden. The reason I titled this cold spinach is that my basement runs at about 62 degrees. Even at that temperature the second planting which I put down 9 days ago is already popping up. I did read the other day that spinach will germinate in temperatures as low as 40 degrees.
I will put some into the ground but I will probably let those plants “bolt” so as to produce the seeds I will need for planting in 2018. I think I have enough seeds for the rest of this year.
My plan for the basement spinach is to plant 50 seeds every two weeks. This way I will always have spinach maturing on a regular basis. I am using as my planter the regular size peat pots and I am using a combination of 50% compost/50% mushroom soil.
I am feeding the plants even now with a product called Recharge which I found at Buds to Blooms in Kennett Square. The company that makes it is out of Colorado. it advertises, living soil microbes, molasses, kelp, humic, fulvic and amino acids. If you find it and buy it just follow the instructions for the dilution with water.