Hardy Blue Plumbago (Ceratostigma plumbaginoides)

Common names:
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Give a thumbs up Plumbago
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General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 5b -26.1 °C (-15 °F) to -23.3 °C (-10 °F)
Maximum recommended zone: Zone 9b
Plant Height: 6 to 10 inches (15-25 cm)
Leaves: Good fall color
Deciduous
Flowers: Showy
Flower Color: Blue
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Fall
Underground structures: Rhizome
Uses: Erosion control
Groundcover
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Humidity tolerant
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Tolerates poor soil
Awards and Recognitions: Other: 2005 Oklahoma Proven! plant selection; 2006 Georgia Gold Medal Winner; UC Davis Arboretum All Star

 3:56 pm. A dramatic change: from green leaves to a burnt red.

Photo gallery:
Location: Nora's Garden - Castlegar, B.C. Date: 2017-10-26 3:56 pm. A dramatic change: from green leaves to a burnt red.
By HemNorth
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Location: Coastal San Diego County Date: 2018-07-29
By carlysuko
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Location: Kingsport, TNDate: 2018-09-25
By TNLaura
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Date: 2012-09-26
By Paul2032
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Location: Mobot, St L. (Missouri Botanical Garden)Date: 2017-08-09
By jmorth
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Location: Coastal San Diego County Date: 2018-07-29
By carlysuko
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Location: My garden in northeast TexasDate: 2010  Summer
By Avedon
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Courtesy Crownsville Nursery
By vic
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Location: Nora's Garden - Castlegar, B.C. Date: 2017-09-25 4:35 pm. Blue blossoms are set off by red stems and buds, and sh
By HemNorth
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Location: In my Northern California gardenDate: 2005-07-19
By zuzu
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Date: 2013-07-18
By Paul2032
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Date: 2000-08-01Image Courtesy of Bloomin Designs Nursery Used with Permission
By vic
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Location: Tennesseecourtesy Sunlight Gardens, www.sunlightgardens.com
By SongofJoy
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Image
By dave
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Location: With RudbeckiaDate: 2013-07-18
By Paul2032
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Location: Denver Metro CODate: 2014-10-21Autumn leaves
By Skiekitty
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Date: 2014-10-21Late fall color
By Paul2032
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Photo Courtesy of Lazy S'S Farm Nursery.
By Joy
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Location: My 6b gardenDate: 2016-07-13One of a 72 plug tray purchased from Santa Rosa Gardens. They all
By beenthere
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Location: Northern Illinois (Zone 5a)Date: 2013-07-16
By Lyshack
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Image Courtesy of Bloomin Designs Nursery Used with Permission
By vic
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Photo Courtesy of Garden Perennials. Used with Permission.
By Joy
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Courtesy Gardens in the Wood of Grassy Creek
By vic
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Courtesy Crownsville Nursery
By vic
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Courtesy Crownsville Nursery
By vic
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Location: Canoga Park, CaliforniaDate: 2006-07-28
By Kelli
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Photo Courtesy of Lazy S'S Farm Nursery.
By Joy
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Photo Courtesy of Lazy S'S Farm Nursery.
By Joy
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Location: Mobot, St L. (Missouri Botanical Garden)Date: 2017-08-09
By jmorth
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This plant is tagged in:
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Comments:
Posted by SongofJoy (Clarksville, TN - Zone 6b) on Jan 17, 2012 1:49 PM

Plumbago makes a good ground cover for sunny to partly sunny places. Electric blue flowers come in late summer and fall, above 1 inch shiny green leaves which turn red and yellow in the fall. Plumbago, which is late to break dormancy in the spring, makes a moderately thick ground cover, but once established, it is very tough and tolerates abuse such as drought and hot weather.

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Posted by DavidLMO (Zone 5B/6 - NW MO - Zone 5b) on Nov 3, 2015 9:55 PM

Two big weaknesses. It is late to show up. This leads to the second and bigger weakness. It tends to look pretty bad over winter: a big brown mass of brown stems once the seeds and leaves fall after it dies back for winter.

Its bloom, though, is worth putting up with these weaknesses. I have about 200 square feet and potted up sixty 3-inch containers this summer. I transplanted them today on a problem bank where I am trying to get it established. It grows by runners and seed, both of which are slow. Some take that to mean invasive, but I conclude far from it. At least under my conditions and in my zone, it is well restrained and is very slow to fill out.

It blooms here in mid to late summer and continues blooming into fall. I do not water it and it has looked fine for 5 years even in the drought years of '12 and '13. It handles our 100-degree temps without missing a beat.

If you can live with its weaknesses, I recommend it as a dry area groundcover.

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Posted by Marilyn (Northern KY - Zone 6a) on Sep 2, 2012 11:16 PM

I planted this one year into the ground and it grew and spread into a big area. The fall color of the leaves was a burgundy color. The color of the flowers is a gorgeous blue!

I don't have the space for it in the ground, but it's a beautiful plant with the blue flowers and the fall colored leaves! If I planted it again, it would be into a container, where I could control the spreading.

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Posted by Avedon (NE Tex - Zone 8a) on Sep 3, 2012 11:43 PM

Fabulous true blue color of flowers, and does very well in a difficult position---lots of heat caused by concrete walkways and south side of house. We must water regularly to keep plant going, but in cooler weather, does just fine.

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Posted by Skiekitty (Denver Metro - Zone 5a) on Apr 14, 2014 10:52 AM

Love the true-blue flowers. Seems to spread slowly, so it's controllable. Doesn't get that tall, but is not what I would classify as xeric. More stunted if not watered regularly. Rather unassuming until fall, when it blooms, and then spectacular.

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Plant Events from our members
Catmint20906 On September 19, 2015 Bloomed
Blondmyk On October 10, 2014 Miscellaneous Event
Plant seems to be doing well. I've noticed new branching from the base of the plant that wasn't there when I started. The plant must be rooted and is surviving nicely in potting soil.
Blondmyk On September 19, 2014 Potted up
Removed the 7-Up bottle greenhouse from the cutting and am allowing it to take sun and water naturally, without benefit of spraying daily as I do with other cuttings.
» Post your own event for this plant

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