Description of Iris pseudacorus 'Berlin Tiger'

Iris pseudacorus 'Berlin Tiger', also called Yellow Flag Iris 'Berlin Tiger', is a special type of European yellow iris. Gardeners choose it for its bright yellow flowers and its bold, striped leaves. This plant makes a great feature for water gardens, pond sides, and boggy areas. It brings both colour and a strong shape to damp spots.

Appearance and Growth

Iris pseudacorus 'Berlin Tiger' usually reaches a height of 60 to 90 cm. It grows in an upright, fan-like shape. The long, narrow leaves look like swords. They are green with clear yellow and white stripes. This pattern gives the plant its 'tiger' name. The foliage adds garden interest all year, even without flowers.

The plant produces large, bright yellow flowers in late spring and early summer. You will typically see them from May to June. Each bloom has three petals that stand up and three that curve down. The downward petals have a slightly ruffled edge. These cheerful flowers attract bees and butterflies to your garden.

Where to Plant It

This iris grows best in full sun to partial shade. It needs moist or consistently wet soil to thrive. It is perfect for the edges of a pond, in a bog garden, or even in shallow water up to 20–30 cm deep. It handles waterlogged conditions very well. The plant is hardy in the UK and is frost-resistant. It will come back strongly each spring.

Plant Care and Maintenance

You can propagate Iris pseudacorus 'Berlin Tiger' by dividing its rhizomes. Do this in late summer or early spring. Dividing the plant every few years keeps its growth healthy and encourages more flowers. Once established, it needs little looking after. You might need to thin it out sometimes to stop it from getting too crowded. Removing old flowers can help new ones to form.

Garden Uses and Benefits

Use this iris in ornamental water gardens or along pond margins. It works well as a single plant, in groups, or mixed with other moisture-loving plants. The striped leaves provide texture and contrast. The yellow flowers create a bright display. By attracting pollinators, the plant helps boost local biodiversity. Its roots also help to stabilise soil at the water's edge, which can prevent erosion.

Things to Keep in Mind

Iris pseudacorus 'Berlin Tiger' can spread quite quickly. In some situations, it may become invasive. Manage its growth by dividing the rhizomes regularly. Keep it in controlled areas, especially in smaller gardens. It is a good idea to check local guidelines, as the main species can be invasive in some regions outside its native range.

With its bright flowers, striped leaves, and adaptability to wet conditions, Iris pseudacorus 'Berlin Tiger' is a first-rate choice for water-based planting schemes. It offers both visual appeal and practical benefits for any damp or aquatic landscape.