Siberian iris just happen to be one of my favorite iris plants.
They are easily grown, tough as nails, have few if any pest problems, survive in my cold zone 4 garden and bloom without flopping over.
What's not to like?
Siberian Iris are hardy down into USDA zone 3 and will bloom reliably there. They are usually hardy into USDA zone 2.
Zone 9 is the warm end so figure you can grow this plant almost anywhere except the hottest parts of the continent.
Siberian Iris - variety unknown
This iris prefers full sun but will thrive in light shade. The more heat you give it, the more shade it will tolerate. In other words, if you're growing in the South, it will take more shade than in the North.
Moderately fertile soils seem to produce the best flowering rather than heavily fertilized gardens.
In spring and summer it prefers a damp soil and this is why it makes an excellent bog or waterside plant. In the fall and winter however, it does want to be dry – standing water will kill it over the winter.
The plant is very easy to divide early in the spring or later in the fall. It is also relatively easy from seed and almost every flower will produce a seed pod after bloom.
Early summer is the height of the blooms. Early to mid-June in USDA zone 4.
One of the reasons I like this plant so much is that in my garden, I rarely had a problem with it. I occasionally will see thrips but that's about the extent of any problems.
Aug 10, 14 09:07 AM
Garden author Doug Green answers gardening questions about hollyhocks, killing bamboo and slow growing perennial plants
Jul 29, 14 06:28 AM
Garden author Doug Green answers the question, 'What plants go with?" in his usual, relaxed style
Jul 24, 14 07:50 AM
Garden author Doug Green writes about overwintering perennial plants indoors and what it takes for temperature and timing
Jul 14, 14 10:01 AM
Garden author Doug Green answers the garden question, "Why Did My Perennials Die?"
Jun 10, 14 08:11 AM
Itoh peonies in my full sun perennial garden 2014 from garden author Doug Greeen
May 21, 14 05:59 AM
Eight important points for success with coneflower including propagation links for starting your own seed
Apr 26, 14 10:28 AM
Tips for growing Christmas rose in the perennial garden - from propagation to best varieties.
Apr 16, 14 07:06 AM
My three favorite fragrant perennials along with a list for your summer garden delight - with links to growing info
Mar 25, 14 08:42 AM
A selected list of easy to grow red perennials for your garden
Mar 19, 14 11:35 AM
Garden author Doug Green lists the deer resistant shade perennials he counts on to deter deer in his garden