Place the rough side of a square of sandpaper rough side up. Put six or seven seeds onto the sandpaper square. Place another square of sandpaper, rough side down, over the top of the seeds.
Rub the two squares of sandpaper back and forth approximately five times. Scratching the boxwood seeds is necessary for germination. It is called scarifying.
Prepare the soil. Dig down, with your shovel, about 6 inches into the ground where you wish to plant the seeds. Break up the soil and any clods. Remove any rocks or other debris.
Place 2 inches of compost over the soil. Sprinkle a balanced fertilizer, with equal parts nitrogen, phosphorus and potassium, over the top. Follow the manufacturer's instructions regarding the amount of the product to use.
Mix the soil, compost and fertilizer together all the way down to the bottom of the 6 inches. Rake the soil evenly to prepare for planting.
Push your finger into the soil to make a 1-inch deep hole. Drop one seed into the hole. Push soil over the top of the hole. Different varieties of boxwoods require different spacing. Be sure to follow the seed manufacturer's suggestions.
Sprinkle water over the planted area immediately after seeding. Only moisten the soil, gently. You don't want to dislodge the planted seeds. Sprinkle the soil two times per week during the first month. Switch over to watering once per month after that time period.