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Rhizome

Iris

Iris spp.

IrisFlag (for some types)Bearded IrisSiberian IrisDutch Iris

Irises are elegant flowers with distinctive three-petaled blooms, available in a rainbow of colors. They symbolize faith, hope, wisdom, and valor.

Plant Family

Iridaceae

Blooming

Early spring (bulbous types) to early summer (rhizomatous types like Bearded, Siberian, Japanese) (March-July), some rebloom

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A vibrant purple bearded Iris flower with yellow accents on the falls
A vibrant purple bearded Iris flower with yellow accents on the falls

Symbolism & Meanings

Key Meanings

Faith
Hope
Wisdom
Valor
Royalty
Eloquence
Message

Perfect For

Birthdays (February birth flower)Anniversaries (25th wedding anniversary)SympathyGet well soonExpressions of admiration

Color Meanings

Purple:Royalty, wisdom, admiration
Blue:Faith, hope
Yellow:Passion, friendship (sometimes)
White:Purity, innocence

Cultural Significance

Named after Iris, the Greek goddess of the rainbow, who acted as a messenger for the gods. The fleur-de-lis, a stylized iris, is a prominent symbol associated with French royalty and the city of New Orleans. Irises are highly regarded in Japanese culture, featured in art and gardens (e.g., *Iris ensata*).

Botanical Information

Physical Characteristics

Flower Size: 2-7 inches across (5-18 cm), varies greatly by species and type
Plant Size: 4 inches (dwarf crested iris) to 5 feet tall (tall bearded iris) (10 cm - 1.5 meters)
Flower Shape: Unique structure with three upright petals ("standards") and three drooping sepals ("falls"), often with beards or crests on the falls

Natural Habitat

Native to: Northern temperate zones (Europe, Asia, North Africa, North America)
Habitat: Highly diverse: meadows, bogs, deserts, rocky hillsides, woodlands, stream banks, gardens
Climate: Varies widely by species: from cold hardy to Mediterranean; most garden irises prefer temperate climates

Growing Guide

Sunlight

Full sun (at least 6 hours for best bloom for most types); some woodland species tolerate partial shade

Water

Varies: Bearded Iris prefer drier conditions once established and good drainage; Japanese and Louisiana Iris prefer moist to wet soils. Bulbous iris need moisture during growth, dry in dormancy.

Soil

Well-drained (critical for most, especially bearded iris), Fertile, Neutral to slightly acidic (most types); some prefer alkaline or boggy conditions

Expert Growing Tips

1

Plant bearded iris rhizomes shallowly with the top exposed in late summer/early fall

2

Divide overcrowded clumps every 3-5 years, typically after flowering

3

Ensure excellent drainage to prevent rhizome rot, especially for bearded iris

4

Remove spent flower stalks and dead foliage to maintain plant health

5

Different types of iris have different cultural needs; research specific requirements.

Uses & Benefits

Ornamental Uses

  • Perennial borders (Bearded, Siberian, Japanese Iris)
  • Cut flowers (Dutch Iris, Bearded Iris)
  • Water gardens and bog gardens (Japanese Iris, Louisiana Iris, Yellow Flag Iris)
  • Rock gardens (dwarf species like *Iris reticulata*)
  • Naturalizing (some species)

Traditional Uses

  • Orris root (from rhizomes of *Iris germanica*, *Iris pallida*, *Iris florentina*) is used in perfumery (as a fixative) and was historically used in herbal medicine (e.g., for coughs, diuretic). Some iris species are toxic if ingested.

Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.

Available Colors

Purple
Blue
Yellow
White
Pink
Orange
Brown
Red-violet
Black (deep purple)
Bicolor

Quick Facts

Type:rhizome
Family:Iridaceae
Native to:Northern temperate zones (Europe, Asia, North Africa, North America)
Blooms:Early spring (bulbous types) to early summer (rhizomatous types like Bearded, Siberian, Japanese) (March-July), some rebloom

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