Japanese Morning Glory 'Yuuzuki'

Ipomoea nil

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



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:

Suitable for growing in containers

This plant is suitable for growing indoors


4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)

12-15 ft. (3.6-4.7 m)


6-9 in. (15-22 cm)

9-12 in. (22-30 cm)


Not Applicable

Sun Exposure:

Full Sun

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:

Pale Pink


White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall


Grown for foliage

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:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

From seed; direct sow after last frost

From seed; germinate in a damp paper towel

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

Allow seedheads to dry on plants; remove and collect seeds

Remove fleshy coating on seeds before storing

Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

Properly cleaned, seed can be successfully stored


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

Brooksville, Florida

Lafayette, Tennessee

Gardeners' Notes:


On Jan 27, 2008, onalee from Brooksville, FL (Zone 9a) wrote:

The english translation of this name is:
"The Moon in the Dusk"


On Jul 19, 2005, RON_CONVOLVULACEAE from Netcong, NJ (Zone 5b) wrote:

The "Chocolates" and the "Silks" that were first offered by companies in the USA were from Japanese sources...


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

In my opinion this looks like what we call "Rose Silk" the blooms are picotee and the flower is about the same size. So I guess it could be but the package from Japan is named "Yuuzuki" and I will add it as such.
This one grows the same as "Rose Silk" and so far all requriements are the same as another of the other Japanese Morning Glories I have.