Blue Daze (Evolvulus glomeratus)

Common names:
Give a thumbs up Blue Daze
Give a thumbs up Evolvulus
Give a thumbs up Hawaiian Blue Eyes

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Minimum cold hardiness: Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Maximum recommended zone: Zone 11
Plant Height: 6 - 12 inches
Plant Spread: 24 - 36 inches
Leaves: Unusual foliage color
Other: Gray-green, fuzzy/felty
Flowers: Showy
Flower Color: Blue
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Late summer or early fall
Underground structures: Taproot
Suitable Locations: Xeriscapic
Uses: Groundcover
Suitable as Annual
Wildlife Attractant: Bees
Resistances: Humidity tolerant
Drought tolerant
Salt tolerant
Propagation: Other methods: Cuttings: Stem
Other: Soft wood stem cuttings.
Containers: Suitable in 3 gallon or larger
Suitable for hanging baskets
Needs excellent drainage in pots
Awards and Recognitions: Other: 1996 Mississippi Medallion Award


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Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Sep 12, 2019 7:45 PM

This species is known as the Brazilian Dwarf Moring-Glory, as it comes from Brazil. Maybe the word of Hawaiian was put in there to emphasize how it is blue like the Pacific Ocean. However, it is not anymore Hawaiian than a popular cultivar of Ageratum (Flossflower). Poor Hawaii has suffered from so many introduced and invasive plants and animals causing trouble to its wonderful, unique native flora and fauna. Most conventional, classic garden centers and nurseries carry some of this tropical perennial used as an annual in northern climates. This cultivar of 'Blue Blaze' is more compact than the mother species that gets 9 to 18 inches high. This makes both a good bedding annual and a good pot plant. It can be brought inside in the winter to survive in a bright, cool room. It is a member of the Convolvulaceae, that is the Bindweed and Morning-Glory Family.

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Discussion Threads about this plant
Thread Title Last Reply Replies
just laughing by Onewish1 Mar 2, 2013 7:24 PM 12
I use this plant a lot and its a favorite by DavidofDeLand Sep 2, 2013 5:04 PM 1
a new annual species, low with blue flowers by ILPARW Sep 12, 2019 7:20 PM 4
Can anyone tell me what this blue flower is? by lindajp Jun 4, 2017 11:25 AM 8
Possibly a ground cover? by Natalie Apr 10, 2016 6:19 PM 6
Evolvulus glomeratus by jmorth Nov 1, 2015 1:39 AM 3
New Flower bed... ideas? by tcs1366 Feb 25, 2015 7:46 PM 20
Ipomoea! by Xeramtheum Oct 5, 2014 7:36 AM 18
Salt tolerant plants by eclayne Feb 8, 2013 9:39 PM 130
Memories of summer... and pretty pictures! by growitall Jul 2, 2017 5:55 PM 367

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