Are spring wheat berries soft?
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I'm not at all sure I understand your question. Strictly speaking, Spring and Winter refer to planting times, Hard and Soft refer to protein quality.
This article speaks of spring wheat as a hard (high protein) crop.
Taken at face value, that could be misleading. There are hard winter wheats, soft winter wheats, hard spring wheats and soft spring wheats. In other words, planting seasons and hardness are not directly related.