Grass-leaved iris (Iris graminea)

Grass-leaved iris

Also known as: Grass-leaved flag, Plum scented iris

The plant has narrow grass-like foliage and can grow up to between 30 to 100 cm long and 5 to 15 mm wide. The leaves can be shiny, and bright green towards the top, and pale grey-green near the bottom. The large flowers are 6 to 8 cm in diameter, they are larger than Iris sintenisii flowers. It has 2 pairs of petals, 3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals .

Scientific classification

Species

Grass-leaved iris (Iris graminea)

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

Spring, Summer

Bloom Time

23 cm to 46 cm

Plant Height

30 cm

Spread

Green

Leaf Color

6 cm to 8 cm

Flower Size

Purple, White, Red

Flower Color

Green, White, Purple

Stem Color

Distribution of Grass-leaved iris

Distribution Map

Grass-leaved iris originates from a broad range of temperate zones across Europe, including both Mediterranean and central regions. It has spread beyond its native habitat, establishing a presence in Eastern Europe. Cultivated for its ornamental appeal, grass-leaved iris can now be found both in its indigenous locales and select areas where it has been introduced.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Garden, scrubland, grass lands, meadows, pastures, open woods, rocky or gravelly soils of the mountains

Care Guide for Grass-leaved iris

Every week

Water

Full sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Grass-leaved iris thrives in temperate grasslands, balancing moisture and drought conditions. It requires weekly watering while avoiding waterlogging. Although it benefits from natural rainfall, supplemental watering may be necessary during dry spells. Good drainage is essential to prevent root rot.

Fertilize: To promote healthy growth of grass-leaved iris, fertilize in spring with balanced nutrition, transitioning to high phosphorus pre-flowering. Apply quarterly, using recommended doses to prevent root burn. Adjust feeding seasonally; use lighter fertilizer in fall and none in winter. Dilute concentrates to half-strength and consider slow-release options.

Pruning: Grass-leaved iris has slender, grass-like leaves and vibrant flowers. Prune after flowering in late spring to enhance growth, air circulation, and shape. Early spring pruning removes old growth. Use clean, sharp tools to avoid infections. Refer to reputable sources for further guidance.

Propagation: Grass-leaved iris, a perennial from the Iris family, is propagated through division after blooming. Ensure healthy rhizomes and use clean tools for separation. Dividing every few years enhances growth and flowering. Provide sufficient water, light, and well-draining soil for successful establishment post-propagation.

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