Japanese Morning Glory 'Suigetsu'

Ipomoea nil

Family: Convolvulaceae (kon-volv-yoo-LAY-see-ee) (Info)
Genus: Ipomoea (ip-oh-MEE-a) (Info)
Species: nil (nil) (Info)
Cultivar: Suigetsu



Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

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

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


10-12 ft. (3-3.6 m)


3-6 in. (7-15 cm)


Not Applicable

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


Seed is poisonous if ingested

Parts of plant are poisonous if ingested

All parts of plant are poisonous if ingested

Bloom Color:

Medium Blue

White/Near White

Bloom Time:

Blooms repeatedly



Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow after last frost

From seed; germinate in a damp paper towel

From seed; germinate in vitro in gelatin, agar or other medium

Scarify seed before sowing

Seed Collecting:

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

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Elk Grove, California

Brooksville, Florida

Dundee, Ohio

Philadelphia, Pennsylvania

North Augusta, South Carolina

Brazoria, Texas

Freeport, Texas

Plano, Texas

Weatherford, Texas

show all

Gardeners' Notes:


On Feb 2, 2008, onalee from Brooksville, FL (Zone 9a) wrote:

Although literally translated 'water moon' (and often sold as that name), the true meaning of Suigetsu is more along the lines of 'moonlight reflected in the water'.


On Sep 19, 2005, Texasbloomer from Plano, TX wrote:

My 2nd best (actually tied for first place) Jap.MG. I've ever grown. It grew well on the side of the house I made its home. It grew quickly and heartily to 11 or 12' by late June and the blooms came the first of aug. 20 or 30 a day sometimes. I have a pic. of the entire vine, but it's sideways and I don't know how to correct it so you don't get a neck-kink viewing it. Here's a single bloom, though, and I'll add more later. This vine faces north, northeast and gets morning sun. Passer-byers can't keep from walking through my grass to get an up-close. I can't either! this MG surprised all of us. Hardly any seedpods yet, and the blooms somedays (this past week) have lessened to right under 20 each day. A must for anyone who loves the sky blue. A striking wide white throat and sta... read more


On Jun 1, 2005, WillowWasp from Jones Creek, TX (Zone 9a) wrote:

From a medium to light blue with white to yellow throat and pale white spokes that fade out as the go to the edge. Some blooms don't show the spokes and some have darker spokes that are more prominant.