Iris Pseudacorus Breeders Collection

Planting & Care Instructions

Dutch irises are elegant spring- to early summer-flowering bulbs ideal for garden borders, pots and cut flower arrangements. For the best flowering results, choose a suitable location and follow the recommended planting depth for high-quality bulbs.

• Planting time: Plant the bulbs in autumn, from September to December, before the ground freezes. Flowering time generally occurs from May to June.
• Position & soil: Choose a full sun position. Plant in loose, fertile and well-drained soil. Avoid areas where water tends to collect.
• Planting depth & spacing: Place the bulbs with the pointed end facing upwards. For Dutch iris bulbs, size 8+ cm, plant approximately 8–10 cm deep and 8–10 cm apart.
• Watering: Water once after planting to settle the soil. Additional watering during autumn is usually unnecessary. Avoid waterlogged soil.
• Growing in containers: Use pots or balcony boxes with drainage holes and a well-drained potting mix. Bulbs can be planted slightly closer together than in garden beds.
• After flowering: Remove faded flowers, but allow the foliage to remain until it naturally turns yellow and dies back. This allows the bulb to store energy for the following season.
• Returning each year: Dutch irises are winter-hardy perennials that can naturally return and bloom year after year when left in suitable growing conditions.

Secure delivery across Europe

We deliver flower bulbs, seeds, perennials, roses and other plants to more than 30 countries across Europe. The standard delivery charge is added on orders depending on the country where you live.
To guarantee the best result and quality of our plants and bulbs, we dispatch all our orders at the right planting period. We monitor harvests in The Netherlands and weather conditions across Europe and start shipping our orders according to the following schedule:

• Summer Flowering Bulbs (dahlias, gladioli, begonias, etc.) - from 23 March until 1 July.
• Spring Flowering Bulbs (tulips, hyacinths, daffodils, etc.) - from 20 September until 1 December.
• Seeds and Garden Tools – all year round
• Roses, Perennials (except peonies), Bushes and other plants in pots - from 1 March until 1 June.