Blooming Time
Early Bloom (E)
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Timing: Typically begins in mid to late April (depending on zone)
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Notes: These irises are among the first to bloom in the spring garden and help kick off the season.
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Examples: Many Standard Dwarf Bearded (SDB) and Miniature Tall Bearded (MTB) irises bloom early.
Early-Mid Bloom (EM)
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Timing: Follows shortly after early bloomers, often in late April to early May
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Notes: Transitional bloomers that bridge the gap between early and mid-season irises.
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Examples: Some early TBs (Tall Beardeds), intermediates, and additional dwarfs.
Mid Bloom (M)
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Timing: Typically peaks in mid to late May
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Notes: The core bloom season — most Tall Bearded (TB) irises bloom at this time.
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Examples: The bulk of hybrid and historical Tall Bearded varieties.
Mid-Late Bloom (ML)
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Timing: Late May into early June
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Notes: These irises extend the season, blooming after the peak but before late bloomers.
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Examples: Some late TBs and border bearded types.
Late Bloom (L)
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Timing: Early to mid-June
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Notes: The final group of spring-blooming irises. Helpful for stretching the visual impact of your iris beds.
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Examples: Late-flowering TBs, some historics.
🌿 Rebloom (Re)
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Timing: Late summer to early fall, often August through October
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Notes: Reblooming irises flower again after their initial spring bloom, depending on zone, weather, and care. Not all rebloomers rebloom every year or in all climates.
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Examples: Known reblooming cultivars like ‘Immortality’ or ‘Autumn Circus’.
🗓️ Zone Notes for ACF (Zone 7b)
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Our Peak season typically runs late April through early June
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Rebloomers may return as early as late July, with peak fall bloom often in September–October