Ipomoea, Grannyvine, Morning Glory 'Blue Star'

Ipomoea tricolor

Family: Convolvulaceae (kon-volv-yoo-LAY-see-ee) (Info)
Genus: Ipomoea (ip-oh-MEE-a) (Info)
Species: tricolor (TRY-kull-lur) (Info)
Cultivar: Blue Star



Vines and Climbers

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade


Grown for foliage

Foliage Color:

Unknown - Tell us


8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)

12-15 ft. (3.6-4.7 m)


15-18 in. (38-45 cm)

18-24 in. (45-60 cm)


Not Applicable

Where to Grow:

Unknown - Tell us


Seed is poisonous if ingested

Bloom Color:

Light Blue

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

From seed; sow indoors before last frost

From seed; direct sow after last frost

Scarify seed before sowing

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored


This plant is said to grow outdoors in the following regions:

Elk Grove, California

Menifee, California

San Juan Capistrano, California

Temecula, California

Hollywood, Florida

Jacksonville, Florida

Melbourne, Florida

Sebastian, Florida

Barbourville, Kentucky

Durham, Maine

Halifax, Massachusetts

Minneapolis, Minnesota

Natchez, Mississippi

Haledon, New Jersey

New Bern, North Carolina

Medford, Oregon

Bangor, Pennsylvania

Olyphant, Pennsylvania

Prosperity, South Carolina

Bulverde, Texas

Plano, Texas

San Antonio, Texas

Shepherd, Texas

Kalama, Washington

Seattle, Washington

show all

Gardeners' Notes:


On Sep 8, 2011, BUFFY690 from Prosperity, SC (Zone 7b) wrote:

Have had this one and star of yelta bloom from my Burpee'Celestial mix'...The stems on this one has shark toothed protrusions from one side of the vine. Not thorny by no means just an interesting observation.


On Oct 2, 2009, DMgardener from (Daniel) Mount Orab, OH (Zone 6b) wrote:

This plant is vigorous! And so floriferous! I love it! I planted just one seed about late April, it started growing, very slowly.......

When its first bloom appeared, it had grown very slowly, less than 5ft. of vine.
Now, it encompasses a 15'X15' area, and a week ago had more than 500 blooms!!! It now has "eaten" 2 new Southern Magnolias, a 'President Tyler' MG, 7 Tithonia 'Torch', several Love-in-the-mist plants, 1 small orange nasturium, and 6 dahlias!:((( And it is reaching out further to other gardens!
Other wise, this is by far the best plant for covering a large area for 1 growing season.

Will update and report on self-sowing.


On Jul 14, 2007, Lenny59 from Medford, OR (Zone 8a) wrote:

Received from a commercial source, sold as 'Flying Saucers'. Not what I was looking for, but just lovely! I have them combined in a "light pink-hot pink-pale blue" combo. They are a little later to bloom than the other two, and the seeds are a medium-brown color, rather slow to germinate.


On May 21, 2007, ipomoeadude from Accokeek, MD wrote:

I have grown these several times, usually as part of a quartet with 'Heavenly Blue', 'Pearly Gates', and 'Flying Saucers'.

I think I prefer them on their own; the flowers are really beautiful but can look a little washed-out in comparison to the brighter or whiter blooms of other I. tricolor cultivars. I honestly don't remember where I got the seeds, but each time the seeds were distinctly lighter-colored than those of other morning glories. Unless you've harvested them yourself, I'd be wary of counting on dark seeds generating true Blue Star blooms.


On Dec 12, 2005, RON_CONVOLVULACEAE from Netcong, NJ (Zone 5b) wrote:

I am aware of two slightly different forms of this cultivar, the earlier form having light beige seeds and a later form having dark brown to black seeds that I first saw circa 1988.

This cultivar looks exactly like the 'missing in action' Ipomoea tricolor 'Summer Skies', except for the darker star coloration to the folds. 'Summer Skies' had no pigmentation to the corolla folds as it apparently lacked the gene for spotting as described by Dr. Yoneda on his authoritative listing of morning glory genes and their function relative to morning glory plant pigmentation.


On Jul 9, 2005, QueenB from Shepherd, TX (Zone 8b) wrote:

I also bought these as 'Flying Saucers' (even with the correct photo on the front of the package!), and ended up with a pleasant surprise. I actually planted both, in separate areas, but only these survived to flourish abundantly. These have done as well as my 'Pearly Gates' did last year, taking over a portion of the fence and producing lots of buds.


On Sep 21, 2003, htop from San Antonio, TX (Zone 8b) wrote:

San Antonio, Tx.
I had never seen this variety until last week when I spotted one on a fence in my neighborhood. Thanks for providing its identity. It is certainly a sight to behold.


On Sep 21, 2003, MusaRojo wrote:

I purchased seeds labeled 'Flying Saucers' and had 'Blue Star' grow instead. Six weeks after the seeds germinated the two vines were 30 feet each, heavily branched, and covered with thousands of buds. They get bright shade in the morning with afternoon sun, and the flowers last until 3 PM or later. I have 50 to 100 flowers open on any given day; several of my neighbors have asked me to save seed for them. Because I live in California zone 10, this plant should continue to bloom for me into December and perhaps beyond. This is an outstanding plant that I would recommend for anyone who has the space to accommodate a large free-blooming vine.


On Jul 31, 2003, Terry from Murfreesboro, TN (Zone 7a) wrote:

Sometimes incorrectly sold as 'Flying Saucers', this variety has soft blue flowers with darker blue markings; not the blue/white "splashed" look of 'Flying Saucers'