Silvewheat cultivation

Suddenly, a lot less peasants were needed as there was much less silverwheat required to feed the population compared to regular wheat and in the following century, as the new plant pushed out the old one from the fields, the entire continent experienced and unprecedented food surplus that lead the populations to skyrocket.
This population boom and a lessened dependency on the now much more efficient agriculture meant that a much larger portion of the population could dedicate themselves to crafts, sciences, magic, philosophy, art and all the other non-productive intellectual pursuits, ushering in the so called Age of Novelty, an era of significant advancement in all aspects of continental civilization.

Access & Availability

Immediately after its first cultivation, silverwheat was difficult to come by, as Alliswert and his druids had difficulty convincing their parent organization, the Harvest Circle, and landowners to try their new grain. However, after finally taking hold a few years later, the demand for silverwheat exploded and the Harvest Circle started distributing it en large, before being forced to stop by threatening monarchs and lords, who demanded the new miraculous grain to be cultivated exclusively in their domains.
However, the distribution boom has already started and no authority could stop the rapid spread of the new food, which fully supplanted natural wheat in every field on the Continent in little over eighty years, becoming the new standard grain from the lowest peasant farm to the largest fields in the known world.

Complexity

Silverwheat itself is fairly complex, featuring a lot of magical mutation and processed akin to enchanting that were much more difficult than enchanting an inanimate object because of the necessity to keep the plant alive and fertile.
His eventual use of ghost wheat as the base species for his development of silverwheat made this task easier and realistically achievable in his lifetime, but it still required a titanic amount of magical manipulation to create the new crop.
His main efforts during the initial cultivation, all done through magic, included:

• Ensuring the plant not only survives outside the Ruád-Vor ecosystem, but to also successfully grow in most soil types across the Continent;
• Keeping the delicate fertility of the plant intact, or ideally even to increase it;
• Raise the nutritional value of the crop to high, yet still balanced and stable level;
• Make the plant more resistant to the elements than regular wheat or the even more fragile ghost wheat;

The complexity of silverwheat is thus great, but thanks to Alliswert's talents and determination, this complexity is not apparent to the people cultivating the crop even today, as his efforts ensured that silverwheat be easy to grow and harvest.

Discovery

Back in the earlier eras, a large portion of population was required to tend to the fields in order to feed society, limiting the amount of people who could work on advancing society through academic and magical means. This situation went on for a long time until a wilwertic harvest druid by the name of Alliswert realized that magic can not only be used to help actively accelerate the growth of plants and protect them from the elements, but possibly to cultivate new species of plants that already have those magically introduced defenses and aids intrinsically, allowing for them to be grown by everyone without the presence and toil of a harvest druid.
Alliswert initially attempted to cultivate the new crop from regular wheat, but the amount of magic he had to use always overpowered the plant and caused it to die or become infertile. He eventually discovered ghost wheat, an already magical and nutritionally superior variant of wheat, which could, however, only grow and survive in the unique ecosystem on the backs of the peaceful hulking quadrupedal giants roaming the southern edges of the Tiplands called the Ruád-Vor.
After nearly four decades of research, experimentation and effort, Alliswert managed to successfully cultivate silverwheat - finally figuring out a way to cultivate the plant in regular soil and without any additional use of magic and to make it even more nutritious than its parent species, starting a revolution in agriculture.