Iris sanguinea

Foliage: The leaves are sword-shaped, bright green, and form a dense, upright clump.

Flowers: Produces showy, deep purple to violet-blue flowers in late spring to early summer. The blooms are 3-4 inches across, and the plant often has multiple flowers per stem, creating a striking display.

Light Requirements: Prefers full sun to partial shade. Iris sanguinea thrives best in full sunlight, which encourages the most vigorous growth and flowering. It can tolerate partial shade, especially in hotter climates, but full sun is ideal to maximize blooming potential.

Soil Requirements: Prefers moist, well-draining, slightly acidic to neutral soil. This iris grows best in rich, loamy soils with a pH range of 5.5-7.0. While it can tolerate a variety of soil types, ensuring good drainage is key to preventing root rot. Adding organic matter, such as compost or peat moss, can improve soil structure and fertility.

Watering: Requires regular watering, especially during dry periods. Iris sanguinea prefers consistently moist soil, particularly during the growing season. It is more tolerant of wet soils compared to other iris species, making it suitable for rain gardens or planting near water features. However, avoid allowing the soil to dry out completely.

Temperature and Humidity: Hardy in USDA zones 5-8. Iris sanguinea is well-suited to a wide range of climates, from cold northern regions to warmer southern areas. It can withstand cold winters and is frost-tolerant, making it a robust choice for various garden settings. This plant prefers moderate humidity levels but is adaptable to both higher and lower humidity conditions.

Fertilization: Apply a balanced, slow-release fertilizer in early spring to encourage healthy growth and abundant flowering. An additional application in mid-summer can help sustain the plant during its peak growing season. Organic fertilizers, such as compost or well-rotted manure, are also beneficial for maintaining soil fertility.

Pruning: Prune lightly after flowering to remove spent blooms and tidy up the plant. Removing dead or damaged leaves helps maintain the plant's appearance and prevents the spread of diseases. In late fall or early winter, trim back any remaining foliage to prepare the plant for dormancy.

Pests and Problems: Generally pest-resistant, but may occasionally be affected by iris borers, aphids, or fungal diseases such as leaf spot. Ensuring good air circulation around the plant and avoiding overhead watering can help prevent fungal issues. If pests or diseases are detected, treat with appropriate measures such as insecticidal soap or fungicides.