Blue Iris Iris 'Philippa Baughen' (Spuria)

Water

The Spuria Iris requires moderate watering, especially during the active growth and blooming period in spring and early summer. They should be watered deeply once a week, providing about 1-2 gallons per plant to ensure proper soil moisture. During the hot, dry summer months, you may need to increase watering frequency. Cut back on water as the plant goes dormant in late summer, and during the fall and winter months, watering may only be necessary if the weather is particularly dry. The soil should be allowed to dry out slightly between waterings to prevent overwatering which can cause root rot in these drought-tolerant plants.

Light

Spuria Irises thrive best in full sun conditions, where they can receive at least six hours of direct sunlight each day. However, they can tolerate partial shade, particularly in hot climates where some respite from the afternoon sun can be beneficial. Plant them in a spot that gets bright, unfiltered sunlight for the majority of the day to promote robust growth and plentiful blooms.

Temperature

The Spuria Iris is hardy and can tolerate a wide range of temperatures, but performs best in areas where the temperature ranges between 55°F and 75°F during the growing season. They can survive temperatures as low as -20°F in winter and as high as 90°F in summer. However, prolonged exposure to temperatures outside of the ideal range can stress the plant and affect growth and flowering.

Pruning

Prune Spuria Irises after they finish blooming, usually in late summer, by cutting back the flower stalks to just above the ground level. This helps prevent seed formation and can encourage a tidier plant appearance and potential rebloom. Remove any damaged or diseased leaves at any time to maintain the health and aesthetics of the plant. Pruning is not typically required frequently, once a year is generally sufficient unless clean-up is needed for aesthetic reasons.

Cleaning

As needed

Soil

Spuria Iris prefers well-draining soil with a neutral to slightly acidic pH, generally around 6.5 to 7.0. A soil mix with a good balance of loamy garden soil, peat, and sand or perlite works well to encourage healthy growth and drainage.

Repotting

Spuria Iris typically do not need to be repotted often as they are hardy outdoor perennials. However, they should be divided and transplanted every 3 to 5 years to prevent overcrowding and maintain vigor.

Humidity & Misting

Spuria Irises are tolerant of a wide range of humidity levels and do not require high humidity, making them well-suited for typical outdoor garden conditions.

Suitable locations

• Indoor

  Not ideal for indoor growth; requires full sun.

• Outdoor

  Plant in full sun, well-draining soil, allow space.

• Hardiness zone

  4-9 USDA

Life cycle

The Iris 'Philippa Baughen', commonly known as the Spuria Iris, begins its life cycle when a seed germinates in late spring or early summer, ideally in moist, well-drained soil. The seedling grows into a vegetative plant, developing long, narrow leaves and a robust root system that includes rhizomes. Over the next few years, the plant matures and the rhizomes spread, giving rise to additional shoots and forming clumps. Once mature, typically in late spring to early summer, the Spuria Iris blooms, producing tall, slender stems topped with large, vibrant flowers that can exhibit a range of colors, often with intricate patterns. After flowering, the plant sets seed capsular fruits if pollination occurs, and once seeds are ripe, they are dispersed to begin a new cycle. During winter, the plant enters a period of dormancy, preparing to emerge again in the spring.

Propogation

• Propogation time

  Late Summer to Early Fall

• Propogation: For the Iris 'Philippa Baughen', which belongs to the Spuria group, the most popular method of propagation is through division of its rhizomes. This is best done in late summer after the plant has flowered and begun to go dormant. To propagate, carefully lift the clump of iris from the soil and gently separate the rhizomes, ensuring each division has at least one fan of leaves and a portion of roots. Trim the leaves to about a third of their height, which is approximately 4 to 6 inches (10 to 15 centimeters), to reduce water loss and make planting easier. Once divided, replant the rhizomes 1 to 2 feet (30 to 61 centimeters) apart, positioning them just below the soil surface, and water them well to help establish their roots in the new location.