An exciting new area of Irises are the rebloomers. Traditionally most Iris species have bloomed in the spring. Hybridizers soon noticed that some will rebloom in the fall. Various species have shown this tendency. Iris bicapitata
which until recently has not been in collections has been said to start blooming in the Fall and continue until Spring. Of course that type of continuous bloom would only occur in milder winter climates. New hybrids of tall bearded Irises have demonstrated am ability to rebloom farther north before winter and some varieties may rebloom more that once given the right conditions.
All gardeners could contribute substantially to our knowledge by adding notes to the comment section of the cultivar pages of this wiki recording date, year of bloomtimes and the location of where they were growing. The wiki could add substantially to the data we have and help hybridizers choose parents for developing rebloom and even continuous bloom of cultivars for their region. For more information about reblooming Iris join the Reblooming Iris Society
a section of AIS.
Different geographic areas have different star rebloomers. Below is a list of varieties by color that have proven themselves reliable rebloomers in Region 4 which consists of the states of Maryland, North Carolina and Virginia.
White and off white:
Standard Dwarf Bearded:
, Little Showoff
, Sdb. SdbPrettyGirl
, Low Ho Silver
'Margaret Wilson Thomas'
Region 4 has a complete listing on its website, see A-M
with links to the Iris Encyclopedia for each iris. You can see more notes and photos on reblooming in Region 4 for 2013 and 2014 here
The World of Irises has a report on reblooming in Region 6
The Iris Society of Dallas lists irises that are reliable rebloomers in the Dallas area here
. Most are TBs with a few other bearded irises included in the list.
The Region 15 Spring Report 2012 has a selection of irises proven to rebloom in Region 15
on page 2 and 30 showing photos of 32 rebloomers.
Region 2 has a table of rebloomers in their region
with the coldest USDA zone where reblooming has been reported in Region 2. The coldest zone was generally 5a.
-- Main.RPries - 2009-11-01