Cauliflower is gaining popularity in our health conscious society being used as a replacement for higher carbohydrate vegetables. It is a cool weather crop. Cauliflower seeds may be direct sown for a fall crop but do much better for a spring crop started indoors in seedling trays 4-6 weeks prior to the last frost date. A week or two prior to planting outside harden off the seedlings off by putting them outside in increasing intervals to adjust them to outside temperatures and natural sunlight. Buy cauliflower seeds online.