Iris pseudacorus ‘Creme de la Creme’ is a cultivar of the Iris pseudacorus species, commonly known as yellow flag iris. It is prized for its beautiful creamy yellow flowers and striking presence in the garden. Here’s a detailed description and care guide for Iris pseudacorus ‘Creme de la Creme’: Description: Iris pseudacorus ‘Creme de la Creme’ is a robust perennial plant that typically grows to a height of 3 to 4 feet (90 to 120 cm) and forms clumps of upright, sword-shaped leaves. The foliage is deep green and provides an attractive backdrop to the flowers. The standout feature of ‘Creme de la Creme’ is its large, showy flowers, which bloom in late spring to early summer. The flowers are a creamy yellow color with delicate white markings on the falls (lower petals). They have a slight fragrance and are held on sturdy stems above the foliage. The blooms make a stunning display and are attractive to pollinators. Care Guide: Light: Iris pseudacorus ‘Creme de la Creme’ thrives in full sun to partial shade. It prefers at least 6 hours of direct sunlight per day for optimal flowering. In hot summer regions, providing some afternoon shade can help protect the flowers from fading or scorching. Water: Yellow flag iris prefers consistently moist soil. Provide regular watering to keep the soil evenly moist, especially during the growing season. However, avoid waterlogged conditions, as excessive moisture can lead to root rot. If grown in a water garden or near a pond, ensure the water level is consistently high enough to keep the roots moist. Soil: ‘Creme de la Creme’ prefers a moist, fertile soil that is slightly acidic to neutral in pH. It can tolerate a range of soil types, including clay, loam, or sandy soils, as long as they are well-draining. Incorporating organic matter, such as compost or well-rotted manure, into the soil prior to planting can help improve its fertility and moisture retention capabilities. Fertilizer: Yellow flag iris is not a heavy feeder but can benefit from a light feeding. Apply a balanced, slow-release fertilizer in early spring when new growth emerges. Follow the package instructions for dosage and application instructions. Avoid excessive fertilization, as it can lead to lush foliage at the expense of flower production. Maintenance: Remove spent flower stalks after blooming to improve the plant’s appearance and prevent the formation of seed pods. Cut back the foliage to the ground in late fall or early winter to promote healthy regrowth in the following season. Yellow flag iris can spread vigorously through underground rhizomes, so regular division every few years in early spring may be necessary to control its growth and rejuvenate the plant. Pests and Diseases: Iris pseudacorus ‘Creme de la Creme’ is generally resistant to most pests and diseases. However, it can be susceptible to iris borer and slug damage. Regularly inspect the plants for signs of damage or pests and apply appropriate treatments if necessary. Good air circulation and spacing between plants can help prevent the development of fungal diseases. Iris pseudacorus ‘Creme de la Creme’ adds a bright burst of color to water gardens, pond margins, and moist areas in the garden. With its creamy yellow flowers and attractive foliage, it brings a touch of elegance to any landscape.