Cape Iris (Dietes iridioides)

Common names:
Give a thumbs up Cape Iris
Give a thumbs up Wild Iris
Give a thumbs up Dietes
Give a thumbs up Fortnight Lily
Give a thumbs up Morea Lily
Give a thumbs up African iris

Botanical names:
Dietes iridioidesAccepted
Moraea iridioidesSynonym

General Plant Information (Edit)
Plant Habit:Grass/Grass-like
Life cycle:Perennial
Sun Requirements:Full Sun to Partial Shade
Minimum cold hardiness:Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Plant Height:18 inches - 24 inches
Plant Spread:12 inches - 15 inches
Flower Color:White
Flower Time:Spring
Late spring or early summer
Late summer or early fall
Wildlife Attractant:Bees
Resistances:Deer Resistant
Toxicity:Roots are poisonous
Propagation: Other methods:Division
Containers:Suitable in 3 gallon or larger


Posted by OldGardener (So Cal - Zone 10b) on Jul 16, 2014 9:27 AM

Many plants sold as Dietes iridioides are actually Dietes grandiflora. D. grandiflora has dark, brownish markings on the inner tepals but D. iridioides does not.

A very special "thank you" to Evan for posting the photos!

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Posted by OldGardener (So Cal - Zone 10b) on Jul 16, 2014 1:04 PM

Do NOT remove the stem that bloomed as it will bloom next year. Each stem blooms for multiple years.

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Posted by sunkissed (Winter Springs, FL - Zone 9b) on Apr 27, 2016 2:30 PM

This plant grows very well in Central Florida, so well that it is used in landscaping often. It flowers off and on for most of the year, especially spring through fall. Drought tolerant once established. Great for a sunny location.

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Posted by OldGardener (So Cal - Zone 10b) on Jun 26, 2014 8:55 PM

Older clumps can get considerably larger than listed. I just divided a 10 year old clump this evening that was a little more than 3' wide.

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Posted by longk (Oxford UK - Zone 8a) on Mar 16, 2017 5:10 PM

This did not prove hardy enough to survive here in the UK unlike my D.bicolor despite being the larger and stronger looking plant.

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Plant Events from our members
flaflwrgrlOn July 4, 2014Potted up
Added alfalfa to feed it.
MrsBinWYOn May 7, 2017Seeds germinated
MrsBinWYOn April 2, 2017Seeds sown
milk jug, room temp, all 20 seeds from ishareflowers
» Post your own event for this plant

Discussion Threads about this plant
Thread TitleLast ReplyReplies
Need IDs for these two plants by DinuOct 5, 2017 10:17 PM3
Need an ID on this perennial by CaliFlowersSep 22, 2017 6:15 PM6
Identifying an Iris variant by LTCTGCSep 11, 2016 5:37 AM6
Help identifying flowering plant by AustralisSep 6, 2016 4:58 PM9
Bloom Season 2016 - Part 2 by LestvJan 1, 2017 10:08 PM1,322
Iris; for ID by XeramtheumJul 18, 2015 4:20 PM27
photo of different cultivar? by OldGardenerJul 18, 2014 11:04 AM24
Adding a common name by OldGardenerJun 27, 2014 6:57 AM10
unknown iris by jmorthMay 23, 2014 6:43 PM10
Katrina African Iris by jeannehMar 31, 2016 8:55 PM36

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