Getting a pine tree to germinate from seed requires a considerable amount of care. Out of the thousands of seeds that a pine tree casts in the wild, only a few will grow to become adult trees. Therefore, it is best to start your pine tree seeds indoors in a controlled environment. Plant many more pine seeds than you think you will need, as not all of them will germinate into viable seedlings.
Fill a planting pot 1 foot deep with sandy loam potting soil to within 1/2 inch of its lip.
Plant two or three pine seeds about 3 inches apart in the pot at a depth four times the diameter of the seed. If more than one pine seed germinates, cull the weakest seedlings by cutting them off at the soil level.
Water the pot until water pours out of the drainage holes in the bottom.
Cover the top of the pot with plastic wrap to retain the soil's moisture. Place the pot in indirect sunlight until the seed germinates. If the soil becomes dry to the touch at any time, add water.
Remove the plastic wrap as soon as the seed germinates. Then move the pine seedling into direct sunlight.
Water the seedling whenever the top few inches of the soil dry out.