Nematanthus, Clog Plant, Goldfish Plant, Guppy Plant 'Black Magic'

Nematanthusgregarius

Family
Gesneriaceae (ges-ner-ee-AY-see-ee)
Genus
Nematanthus (nee-ma-TAN-thus)
Species
gregarius (greh-GAR-ee-us)
Synonym
Sun Exposure
Light Shade
Foliage
Evergreen
Smooth
Textured
Height
6-12 in. (15-30 cm)
Spacing
36-48 in. (90-120 cm)
Hardiness
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Orange
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Tropicals and Tender Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Suitable for growing in containers
Bloom Characteristics
Bloom Size
Other details
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
Non-patented
Propagation Methods
From softwood cuttings
By tip layering
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Springville, Alabama

Hayward, California

San Jose, California

San Pedro, California

Wheatland, California

Smyrna, Delaware

Clearwater, Florida

Oldsmar, Florida

Belle Rose, Louisiana

Lafayette, Louisiana

Westland, Michigan

Howell, New Jersey

Alamogordo, New Mexico

Deposit, New York

Elizabeth City, North Carolina

Akron, Ohio

Okeene, Oklahoma

West Warwick, Rhode Island

Missouri City, Texas

Weslaco, Texas

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Gardener's Notes:

8
positives
1
neutral
1
negative
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B
Hayward, CA | June 2016 | positive

In the SF bay area they can bloom nearly all year. But try to buy one in bloom. Some cultivars of this plant are poor bloomers...sometime...Read More

R
Willcox, AZ (Zone 8a) | April 2015 | positive

Love this plant! It is gorgeous in bloom or out. The shiny, dark green leaves grow close enough to make every stem full and never leggy...Read More

C
Akron, OH (Zone 5a) | June 2009 | positive

Vigorous grower and nice bloomer even with little or no fertilizer and thrives on neglect. But it like no hugs because it's leaves are ra...Read More

O
East Northport, NY | April 2008 | positive

This plant looks like my first goldfish plant! It seems to love a sunny window (at least in New York), and it responds well to occasiona...Read More

G
Smyrna, DE (Zone 7a) | April 2007 | positive

I purchased a small plant in the Spring of 2004. I had wanted one for years and was excited when I found one at a local nursery in bloom!...Read More

B
Springville, AL (Zone 7a) | May 2005 | positive

I just bought one at Lowe's yesterday for $7.95. I have been watching a seller on ebay who has been listing them for several months. I ju...Read More

L
Selah, WA | January 2005 | neutral

Retiree from Selah Washington .

A friend of mine has this plant growing in the east window of her kitchen on the windowsil...Read More

T
Watertown, NY | September 2004 | negative

I live upstate NY and a local supermarket was selling this absolutely beautiful/unique plant. My friend purchased one - we loved the flo...Read More

C
Rosemount, MN | March 2004 | positive

I bought this plant in the fall because of the orange flowers. It has done so well in a southeast window (indirect light) and has steadi...Read More

U
West Warwick, RI | February 2004 | positive

I rescued two of these plants (half dead) from behind a pizzaria, not knowing what they were. I however was certain I could revive th...Read More

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