A Flower For All Seasons
Considering all of the various forms of iris, it is possible to have some type of iris in bloom throughout the year! The chart below is a graphical demonstration of this.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Aril/Arilbred (AR/AB) |
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| Border Bearded (BB) |
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| Dutch Iris |
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| English Iris |
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| Intermediate Bearded (IB) |
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| Iris foetodisima (Showy seeds) |
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| Iris japonica |
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| Iris reticulata varieties |
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| Iris unguicularis |
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| Japanese |
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| Louisiana |
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| Miniature Dwarf Bearded (MDB) |
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| Miniature Tall Bearded (MTB) |
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| Pacific Coast |
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| Reblooming Bearded |
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| Siberian |
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| Spuria |
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| Standard Dwarf Bearded (SDB) |
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| Tall Bearded (TB) |
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Note: Within each classification of iris there is a further sub-classification determined by the bloom time and each variety is granted a designation of "Very Early" through "Very Late". When utilizing iris in the landscape, consideration of bloom time can greatly prolong the length of the show. Note: In the Pacific Northwest, effects of micro-climates can be very pronounced and affect blooming times dramatically. Two of the same varieties planted in the same landscape in different locations can bloom consecutively rather than concurrently! |
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