The Pennington Sunrise Primo Perennial Rye Blue Tag TQ can be used in sun or shade areas of the lawn. Keep in mind all grass typically needs at least 4-6 hours of direct sunlight to thrive. If the area you plan to plant the seed gets less than this you may want to consider trimming limbs and branches back to allow more sunlight in the area, or go with a slightly more shade tolerant grass type such as fine fescue.  The best way to determine what grass seed would grow and establish well in your area would be to speak to someone at your Local Master Gardener center for what will thrive in your weather and environments conditions.