If you have flowering iris in your garden, you should divide them every few years to prevent overcrowding and promote blooming. Irises are perennial plants that grow from tuber-like underground horizontal stems called rhizomes.
To divide irises, use a gardening fork to gently remove the plants from the ground. Discard any damaged or unhealthy looking iris rhizomes, and replant the rest.
Watch this video to find out more.
Further Information
- Planting Bulbs (video)
- Spring Bulb Planting Depths (article)
- Hardy vs. Tender Bulbs (article)
- Understanding the Types of Bulbs in Your Garden (article)
