All of our seed is untreated and Open-pollinated.
Some grains and grain-like crops are planted around the last frost date in spring and grow during the summer, then are harvested in the fall. Corn would be a familiar example. These are grouped together as "Summer Grains"
To make it easier to plan your growing season, we have separated the grains according to the temperatures they need for best growth, and their place in the garden calendar.
Preparing the soil to grow grains is just the same as for other garden crops. Just make sure the seed is well-covered and the soil has no big clods. Most grains do not want vast amounts of fertility, because the plants would get too tall and leafy. That can cause the plants to lodge which means to fall over, ruining the grain.
For spring and summer-planted grains, growing a legume cover crop over the winter (vetch, say) should get the soil ready. Extra-tall or leafy crops are the exception?Corn, amaranth, and quinoa will want more nutrients, like a nice topdressing of compost, before planting.
Days to Maturity figures are really just for comparing between varieties within a category. Actual days will vary from location to location, depending on garden conditions.