Photo by Melody

PlantFiles: Clog Plant, Guppy Plant, Goldfish Plant
Nematanthus gregarius

Family: Gesneriaceae (ges-ner-ee-AY-see-ee) (Info)
Genus: Nematanthus (nee-ma-TAN-thus) (Info)
Species: gregarius (greh-GAR-ee-us) (Info)

Synonym:Nematanthus radicans
Synonym:Hypocyrta radicans

2 vendors have this plant for sale.

15 members have or want this plant for trade.

Tropicals and Tender Perennials

6-12 in. (15-30 cm)

36-48 in. (90-120 cm)

USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Light Shade

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall


Other details:
This plant is suitable for growing indoors
Average Water Needs; Water regularly; do not overwater

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 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

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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive rosewood513 On Apr 22, 2008, rosewood513 from Lanoka Harbor, NJ (Zone 7a) wrote:

This is a lovely plant that I had it in my home for many months and gave it to a friend as a gift. It looks nice in a hanging basket and requires little water and not much sun. I had a yellow/orange flower on it that lasted a few days. This is a sturdy looking plant with waxy laves that were shiny and deep gree, I would purchase one for myself again.

Positive BayAreaTropics On Feb 2, 2007, BayAreaTropics from Hayward, CA wrote:

Mine just came through a near record cold January freeze just fine,with no protection whatsoever.Even now two weeks later, i see no cold damage. Hardy to mid twentys F.
I think i will add more of these...
EDIT 2012: I still have that very same plant..has also taken a few more frosts and few morn's of 32f over the winters. Looks fine. I would call these a warm 9b hardy.

Positive TwinLakesChef On Dec 7, 2004, TwinLakesChef from OC, CA & Twin Lakes IA, IA (Zone 4b) wrote:

This plant does not require much water and always has very shiny leaves. When overwintering in the house there are never pest problems.


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

Hayward, California
La Habra, California
Simi Valley, California
Deland, Florida
Fort Lauderdale, Florida
North Port, Florida
Vero Beach, Florida
Cumberland, Maryland
Lanoka Harbor, New Jersey
Deposit, New York
Roanoke, Virginia

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