Growing herbs from seed is an incredibly rewarding and inexpensive way to savor homegrown flavor fresh from your garden at your table. Getting the seeds to sprout is generally the easiest step. There are a few other essential steps, however, to successfully nurture seedlings into mature and useful plants. This includes providing adequate light and water as the seedlings grow and, one of the most important steps, thinning—reducing the number of seedlings to prevent overcrowding and allow the strongest plants to thrive.