Sun and shade mixes are just a “shotgun” approach…just a bunch of different grasses thrown in a bag…in sun some will grow and in shade, others will…a very wasteful approach. You’d be best with a blend of grass that are known to thrive in shade. We have just the blend for that and it is called Country Estate Shady Grass Seed Blend. All grass types picked for their ability to thrive in shade here in our area…nothing generic about it!