Southern blue flag - Iris virginica (Care, Characteristics, Flower, Images)

Southern blue flag

Also known as: Great blue flag

Southern blue flag (Iris virginica) is a perennial flowering plant that is considered easy to grow. Southern blue flag grows best in partial shade or full sunlight. This species has rhizomes that spread underground and can be propagated as a houseplant.

Scientific classification

Species

Southern blue flag (Iris virginica)

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

Spring, Early summer, Mid summer

Bloom Time

Summer, Fall

Harvest Time

30 cm to 76 cm

Plant Height

30 cm to 90 cm

Spread

Green

Leaf Color

2.5 cm to 8 cm

Flower Size

Spring

Growth Season

Moderate

Growth Rate

Images of Southern blue flag

Attributes of Southern blue flag

Growth Rate

During Spring, southern blue flag's moderate growth rate results in balanced development, with new leaves sprouting and a steady increase in height. This pace also aids in the gradual flowering process, ensuring strong petal formation. Although southern blue flag exhibits slower growth rates in other seasons, Spring sees a noticeable burst of activity, as suitable conditions stimulate its moderate growth.

Culture

Symbolism

Hope and faith

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Toxicity

Southern blue flag is toxic to cats and dogs. Ingesting any part of southern blue flag can cause poisoning symptoms such as gastrointestinal upset, vomiting, and diarrhea. Immediate veterinary care is crucial for affected pets to ensure their health and safety.

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Quickly Identify Southern blue flag

Tall stalks reach 2-3 feet (60-90 cm) high with elegant flowers at the top.

Distinct 6-parted flowers with outer white marks and inner yellow crests.

Loculicidal capsules reveal seeds, measuring 0.5-1 inch (1.27-2.54 cm), in July-September.

Strap-like green leaves up to 3 feet (90 cm) with parallel veining and midrib.

Flowers bloom for 2-3 weeks in late spring, 3-4 inches (7.5-10 cm) wide.

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Care Guide for Southern blue flag

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Southern blue flag thrives in moist environments, requiring weekly watering. While it adapts to short dry spells, it prefers consistently damp soil. Typically grown outdoors, southern blue flag benefits from the natural rain cycle, supporting its lush foliage throughout the growing season.

Fertilize: To encourage healthy growth, fertilize southern blue flag in early spring and after flowering, using a balanced 10-10-10 fertilizer or high-phosphorus options for blooming. Apply quarterly, ensuring moist soil to avoid root burn, and cease in winter. Following these guidelines promotes southern blue flag's vitality.

Pruning: Southern blue flag features vibrant flowers and sword-like leaves. Prune in early to late spring for better growth, removing dead foliage and spent stems. Every 3-5 years, divide for air circulation and to prevent overcrowding, promoting vigorous growth and prolific blooming.

Propagation: Native to marshy habitats, southern blue flag thrives in garden and water-side settings. Propagating by division post-blooming requires ensuring each section has leaves and roots. To promote healthy growth, maintain ample moisture and shade to minimize stress on young plants.

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Images of Southern blue flag

Attributes of Southern blue flag

Culture

Toxicity

Quickly Identify Southern blue flag

Care Guide for Southern blue flag

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