Scientific name: Lilium irdollae
Once your container grown lilies begin to grow from the bulb tips, add more potting mix to the container. Keep the soil line about 1 inch (2.5 cm.) below the brim of the pot for watering. You should water only when the top layer of soil looks dry. I usually just stick the tip of my finger right in the soil to see if it feels dry or moist. If it’s dry, I water thoroughly. If moist, I check again the next day. Asiatic and Oriental lilies will bloom between June and August. After the blooms have faded, deadhead them to encourage new flowers and bulb growth rather than seed development. A dose of tomato fertilizer once a month also helps the blooms and bulbs. August should be the last month you use fertilizer.