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Hardiness: USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure: Sun to Partial Shade
Danger: Parts of plant are poisonous if ingested
Bloom Color: Medium Blue
Bloom Time: Mid Spring Late Spring/Early Summer
Foliage: Grown for foliage Evergreen Variegated
Other details: Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater Suitable for growing in containers
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting: Allow unblemished fruit to ripen; clean and dry seeds N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
As a landscape designer I have used this plant a few times in plans. I too love it's many attributes from color to drought tolerance. The one significant problem we have with it here is Rust. I know of designers here who won't use it because of this problem.
I've grown this lovely plant for several years in the Houston area under appropriate cultural conditions. I am plagued with heavy scale infestation which is much worse in shadier conditions. As an organic gardener, I am unwilling to use systemic insecticides and so far, horticultural oil has not helped. I am considering removing nearly all of these large, lovely plants because they've become so unsightly. This is extremely disappointing.
On Dec 4, 2006, Dinu from Mysore India (Zone 10a) wrote:
This is an absolutely striking plant for its brilliant foliage! It looks esp. lovely if a clump is grown on top of a small mound of lawn. I have seen this as part of a design in many a landscaping.
I have mine in the ground (it broke off the pot I grew in within 2 years) and I must say it is doing great and it does not ask for much water. It has not been attacked by any pest so far.
On Jul 25, 2006, figgybonsai from Lakeland, FL wrote:
I work at a large nursery here in town and I must say that as hard as we have tried we cant keep it in stock, even in this sweltering summer heat it is thriving.
Grows well in extremely dry conditions with no direct sun at all, but in bright shade. The variegation on the leaves got a very pretty pink cast to them after one year. Going into the second year with it,seems to mutiply by expanding clumps, so I have repotted it.
On Apr 14, 2006, sterhill from Atlanta, GA (Zone 7b) wrote:
I've not had much success with this plant - well, not yet. I moved three of them into more shade, cut back the leaves into fans, replanted in forest loam and I now have one new blade. I moved them as they seemed to be getting too much sun and the leaves were browning. Full sun does not necessarily mean full sun in Atlanta.
On Aug 9, 2004, henryr10 from Cincinnati, OH (Zone 6b) wrote:
Ours is potted and gets only about an hour or two of full late afternoon sun. It is thriving.
Watering is no chore as it seems to love dry conditions.
A quite beautiful plant for partial shade.
It really lights up a dark area.
The strangest thing happens in dappled light though.
On a windy day or one w/ fast moving clouds it seems to disappear in the glare of the sun, only to reappear as the shade hits it.
I thought at first it was my vision going.
I've since had several people look at it and they see the same thing w/o prompting.
Quite odd!
On Nov 19, 2003, rosemarysims from Mermentau, LA (Zone 8b) wrote:
I find this to be an excellent plant along the gulf coastal plain. It should be grown only in morning or late afternoon sun here though. This form is much more vigorous and satisfactory than the species. It's quite striking and better than most variegated iris we can grow for foliage.
On Nov 19, 2003, Ultraviolet from Fort Lauderdale, FL (Zone 10b) wrote:
I use this plant frequently in landscape designs in South Florida. Occasionally it gets covered in scale more often in heavy shade and less often in sunnier spots. The foliage is very striking.
Regional...
This plant has been said to grow in the following regions:
, Mobile, Alabama Calistoga, California San Jose, California Van Nuys, California Auburndale, Florida Bokeelia, Florida Fort Lauderdale, Florida (2 reports) Fort Pierce, Florida Hollywood, Florida Homestead, Florida Jacksonville, Florida Lakeland, Florida Lehigh Acres, Florida North Palm Beach, Florida Ocoee, Florida Oldsmar, Florida Orlando, Florida Stone Mountain, Georgia Lafayette, Indiana Greenwell Springs, Louisiana Lake Charles, Louisiana New Orleans, Louisiana Cincinnati, Ohio Saint Helena Island, South Carolina Sumter, South Carolina Bellaire, Texas Houston, Texas Spring, Texas