Thick walled, juicy 2-3 inch peppers grow on stocky 2 foot tall plants that produce such high yields of Jalapenos that the plant looks like the branches will break or the plant will fall over. Best harvested when green and are hottest when they turn red and are fully ripe when they have a Scoville rating of 4000-5000. For best results Jalapenos require steady sunlight and regular watering in warm weather.