Iris ‘Maori King’

Iris 'Maori King' is a historic tall bearded iris cultivar introduced by George Reuthe in 1890. It is a rhizomatous perennial in the Iridaceae family and is known for golden-yellow standards and velvety maroon falls edged in yellow.

Grow Iris 'Maori King' in full sun, ideally with at least 6 hours of direct sunlight daily. More sun generally supports stronger stems, better flowering, and drier rhizome conditions.

Water Iris 'Maori King' moderately, allowing the soil surface to dry slightly between waterings. Avoid persistently wet soil because waterlogged rhizomes are prone to rot.

Iris 'Maori King' is cold hardy outdoors when planted in well-drained soil. Winter survival depends more on drainage and rhizome health than on heavy winter protection.

Iris 'Maori King' is generally listed as a medium- to tall-growing bearded iris, with reported heights from about 18 to 30 inches. Height can vary with climate, soil, and the planting stock.

Plant Iris 'Maori King' in a sunny, open position with excellent drainage and good air circulation. A raised bed, slope, or mixed perennial border is preferable to a low, wet site.

Use well-drained loam that is neutral to slightly alkaline for Iris 'Maori King'. Improve heavy clay with organic matter and coarse material, but avoid creating a rich, moisture-retentive planting pocket around the rhizome.

Iris 'Maori King' can tolerate some light afternoon shade, but full sun is better for reliable flowering. Deep shade or shade combined with wet soil commonly reduces bloom and increases disease risk.

The most common causes are insufficient sunlight, overcrowded rhizomes, excessive nitrogen, planting too deeply, or poor drainage. Check that the rhizome is near the soil surface and receives full sun.

Yellowing or soft foliage on Iris 'Maori King' often indicates overwatering, poor drainage, or rhizome rot. Remove damaged tissue, improve drainage, and water only when the surface has begun to dry.

Iris 'Maori King' usually needs only light fertilization in average garden soil. Use a low-nitrogen, iris- or perennial-appropriate fertilizer in early spring and avoid heavy nitrogen, which can produce foliage at the expense of flowers.

Remove spent flower stalks after Iris 'Maori King' finishes blooming, but leave healthy leaves in place. Cut foliage back only after it has naturally yellowed or been damaged by frost.

Plant Iris 'Maori King' rhizomes in late summer to early fall, after flowering and during the normal iris shipping season. In colder regions, plant early enough for roots to establish before the ground freezes.

Set the rhizome nearly at the soil surface, with the roots spread downward and the top exposed or only lightly covered. Firm the soil around the roots, water once to settle the planting, and avoid deep mulch over the rhizome.

Space Iris 'Maori King' rhizomes about 12 to 18 inches apart for good airflow and future increase. Position the growing point toward the open space so the clump can expand without crowding nearby plants.

Propagate Iris 'Maori King' by dividing its rhizomes rather than by seed when you want plants true to the cultivar. Divide healthy fans after flowering, retaining a firm rhizome section and roots on each division.

Divide Iris 'Maori King' in late summer or early fall, after flowering and once the plant has had time to rebuild its rhizome. Division is useful when the clump is crowded or flowering has declined.

Iris 'Maori King' can produce seed, but seedlings will not reliably reproduce the named cultivar. Seed propagation is mainly useful for breeding or experimentation, while division preserves its established flower colors and form.

Iris 'Maori King' should be treated as potentially toxic if eaten, particularly the rhizomes. Ingestion may cause gastrointestinal upset, and plant sap can irritate skin, so wear gloves when handling and keep plant material away from pets and children.

Iris 'Maori King' generally blooms in the main bearded-iris season, usually late spring to early summer in much of the United States. Exact timing varies by USDA hardiness zone, weather, and local growing conditions.

The flowers of Iris 'Maori King' have rich golden-yellow upright standards and velvety maroon to crimson-brown falls with yellow edging or veining. It is a strongly contrasting historic color pattern typical of the old variegata class.

Iris 'Maori King' can be used as a cut flower, although each bloom is relatively short-lived. Cut stems when the first bud is beginning to open and place them immediately in clean water.