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PlantFiles: Potato Vine
Solanum laxum

Family: Solanaceae (so-lan-AY-see-ee) (Info)
Genus: Solanum (so-LAN-num) (Info)
Species: laxum (LAX-um) (Info)

Synonym:Solanum jasminoides
Synonym:Solanum boerhaaviifolium
Synonym:Solanum boerhaviaefolium

One vendor has this plant for sale.

12 members have or want this plant for trade.

Tropicals and Tender Perennials
Vines and Climbers

15-20 ft. (4.7-6 m)

18-24 in. (45-60 cm)

USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested

Bloom Color:
Light Blue
White/Near White

Bloom Time:
Blooms repeatedly


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

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 semi-hardwood cuttings
By air layering

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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6 positives
4 neutrals
1 negative

Gardeners' Notes:

Positive terrylyn On Mar 27, 2013, terrylyn from Reedley, CA wrote:

Well, I was looking for some colorful vines at a local store and a guy in the nursery recommended the white potato vine and the bougainvillea (barbara karst) and I have to say I love them both! I planted them last year and while the bougainvillea bloomed like crazy the white potato vine did not bloom until now! I have them planted side by side against the wall of the house on a metal trellis (which I spray painted to match the color of the house) facing east but getting sun from the south as well. I don't mind that the barbara karst is a bit messy and thorny. And I love the dainty white flowers of the potato vine. My objective is to get them to bloom together in unison! Below them I have some Red Lions (bulbs) and some Shasta Daisys which I also love. I trim the barbara karst aggressively each year.

Positive MrBeaker On Sep 16, 2011, MrBeaker from Lathrop, CA (Zone 9b) wrote:

It is evergreen and blooms more or less year round. Survives USDA Zone 9B with only minor damage to tips (in an unprotected spot). Minimal care.

Positive hortims On May 13, 2009, hortims from Sacramento, CA wrote:

I have this vine espaliered against a south facing wall here in Sacramento. Absolutely beautiful, blooms constantly. Pinching back and removing low ground trailers will make the plant much fuller as they tend to get barren on the bottom. Average water.

Positive Phytowarrior On Jan 14, 2009, Phytowarrior from Brisbane
Australia wrote:

Although scentless, this is a beautiful moderately growing vine that flowers 3/4 of the year in a temperate climate such as the one i live in. Is completely tolerant of the salt air from the near by ocean as well.

Attracts plenty of birds that use it to nest & the aphids/lady bugs alike love it!

Simply a well behaved & beautiful addition to any garden.


Positive Opoetree On Jul 14, 2007, Opoetree from Oak View, CA wrote:

We have this plant growing on the side of our house along with trumpet vines, giant birds of paradise, and queen palms. It has always been a great plant and we love the rather dainty little blossoms. The plant stood up to a very hard freeze last winter and continues to thrive.

Neutral jasminoides On Jan 16, 2007, jasminoides from Brisbane
Australia wrote:

We live in Brisbane in Australia. The climate is temperate (winter 5deg-22degC, Summer 15deg-29deg)
Recently we planted two potato vines and have found that at the extremeties the plant is wilting/dying. Seems quite healthy near the root system. Could we be overwatering it?

Negative foodiesleuth On Apr 29, 2004, foodiesleuth from Honomu, HI (Zone 11) wrote:

I don't know if this is the same plant, but what I know as potato vine is a very aggresive weed that takes over like kudzu. Anywhere one of the "potatoes" drops its a potential source of another vine.

I fought it from getting into my yard in Dade County (MIami area) when I lived in Florida as a neighbor had a very healthy one planted on the fence between our yards.

We are facing a similar problem here in Hawaii, where people have brought it in illegally and now it is showing up in too many places. Someone planted some vines upstream and during storms they got washed the gulches by our house are full of them and they are trying their best to engulf everything around them!

Neutral TXDianne On Apr 28, 2004, TXDianne wrote:

I purchased some 'bulbs' - they have started little sprouts but they don't 'look like' roots.

Positive tobias On Apr 15, 2003, tobias wrote:

Moving from western Canada (Vancouver) to central where it is much colder, and checking to see hardiness ratings. Looks as though it will not survive winter in Manitoba, although this has done wonderfully here in Vancouver. Minimum temps this winter around -6C. with no problem- and the flowers never fell for most of the winter! (They did reach a state where they had stopped growing). Did well with all purpose fertilizer throughout summer, and seemed to be happy with lots of H2O. Grew quickly (about 20ft. in the summer).

Neutral smiln32 On Aug 29, 2002, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

This plant has the potential to flower at any time of the year, although it primarily flowers in springtime. It needs pruning/thinning from time to time to keep it looking nice. Grows quickly and prefers sun to partial shade. (per the Sunset Easy-Care Gardening book)

Neutral Baa On Sep 30, 2001, Baa wrote:

Evergreen or Semi-evergreen climber from Brazil.

Has lance like, dark green, glossy leaves. Bears blue white, 5 petalled, star shaped, flowers in late summer early Autumn. Also bears small, egg shaped, glossy, black fruit which will cause sever stomach ache if ingested.

Flowers August-October.

Likes a sunny, warm position in well drained soil. It is only hardy down to 32F/0C and is best grown indoors in frost prone areas. Saying that here it grows outside all year with no protection other than cover from the honeysuckle, I suspect there is a microclimate which prevents it from becoming too cold.


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

Ben Lomond, California
Brea, California
Clayton, California
Fairfield, California
Foothill Farms, California
Lathrop, California
Lemon Grove, California
Long Beach, California
Martinez, California
Merced, California
Oak View, California
Oxnard, California
Perris, California
Reedley, California
San Francisco, California
San Leandro, California
Sonoma, California
Walnut Creek, California
Niceville, Florida
Saint Petersburg, Florida
Houma, Louisiana
Reno, Nevada
Albuquerque, New Mexico
Florence, Oregon
Columbia, South Carolina
Austin, Texas (2 reports)
Houston, Texas
Manchaca, Texas
Langley, Washington

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