Seeding your garden flowers correctly can mean the difference between cultivating a full, blooming garden and planting a loose arrangement of spindly plants. Flower seeds can be planted directly into the soil once they're purchased. But there, the germinating seeds are ill-equipped to stand up to the ravages of the weather and your local neighborhood insects and birds. To make sure that your flowers are well-equipped to stand up to nature, start them inside first. After you have nursed them past the delicate germination stage, they will be better equipped to survive and thrive in your garden.
Fill each peat pot to within 1/4 inch of its lip with moistened soil. Then firm the soil gently with your fingertips.
Sow your seeds at the depth recommended for the variety, which should be printed on your seed packets. In general, very small seeds can be sprinkled on the surface, gently watered and then pressed into the soil with your fingertips. Medium-sized seeds should be planted 1/4 to 1/8 inch deep and 1 to 2 inches apart. Large seeds should be planted at a depth that is roughly twice their diameter. Plant 2 to 3 seeds per peat pot. One week after they germinate, cull the weakest seedlings by cutting them off at the soil level.
Place the peat pots into plastic freezer bags. This will keep the soil moist and the temperature high. Place the peat pots in a warm location indoors where they will receive indirect sunlight.
Remove the plastic and move the peat pots into direct sunlight (near a window with southern exposure, if possible) as soon as the seed germinates.
Water the seedling whenever its soil feels dry to the touch. Submerge the bottom inch of the peat pot in a tray of water until the top of the soil feels moist. Do not keep it submerged any longer.