Product description
'Blue King' is a stunning Siberian Iris that features elegant, deep violet-blue flowers with intricate, golden-yellow and white veining on the falls. The blooms rise gracefully above clumps of narrow, grass-like, blue-green foliage, bringing strong vertical lines and rich, jewel-toned colour to the garden.
Siberian Irises are robust and adaptable, but they perform best in rich, slightly acidic soil that retains moisture without becoming boggy. Plant the rhizomes relatively deep compared to bearded irises, place them in full sun or partial shade, and divide congested clumps every few years to maintain vigorous flowering.
Please Note: When purchasing plants, please consider that each live item is unique and may therefore differ from the images shown, which are for illustration purposes only. The plant will be supplied in a growers pot. Depending on season, some plants may be pruned back to encourage growth and deciduous plants may arrive without leaves.
Garden Plant Size Guide

Plants in larger pots can be multiple years older than their smaller counterparts with more mature root systems and foliage. This makes them able to thrive as a full size plant in your garden quicker than smaller alternatives.
The most common size of pot that garden plants come in are 9cm/1L/3L/5L this is in reference to the diameter at the top of the pot.
9cm potted plants still remain the most popular cost effective option though, they just may take a little patience to allow them to grow into full maturity once planted in your garden.
Plant specs, care guide & tips
Key features
Specifications
When to plant
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
For the Iris Blue King, dig up the clumps every three to four years, discard the woody, unproductive center of the root mass, and replant the vigorous outer sections to keep the blooms coming back strong.
How to Water
Water Irises deeply when the top inch of soil feels dry. Target the base to keep foliage dry and prevent rot. While Siberian types like moisture, Bearded Irises need sharp drainage; never let their rhizomes sit in standing water.
How to Plant
Place these Siberian irises in heavy, moisture-retentive earth, setting the rhizomes about one to two inches below the soil surface. They look and perform best when planted in sweeping drifts or groups of three to five, spaced about a foot apart to allow the clumps room to expand.









