Solanum Species, Costa Rica Nightshade, Giant Potato Vine, Paradise Vine

Solanum wendlandii

Family: Solanaceae (so-lan-AY-see-ee) (Info)
Genus: Solanum (so-LAN-num) (Info)
Species: wendlandii (wend-LAND-ee-eye) (Info)
Synonym:Solanum mazatenangense
Synonym:Solanum tlacotalpense
Synonym:Solanum unguis-cati


Tropicals and Tender Perennials

Vines and Climbers

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade




Foliage Color:

Unknown - Tell us


8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)

12-15 ft. (3.6-4.7 m)


24-36 in. (60-90 cm)


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)

USDA Zone 11: above 4.5 C (40 F)

Where to Grow:

Grow outdoors year-round in hardiness zone

Can be grown as an annual


Seed is poisonous if ingested

All parts of plant are poisonous if ingested

Bloom Color:


Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Blooms repeatedly

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

From semi-hardwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


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

Downey, California

La Mesa, California

Manhattan Beach, California

San Francisco, California

San Leandro, California

Fernandina Beach, Florida

Hollywood, Florida

Miami, Florida

Saint Cloud, Florida

Monroe, Georgia

New Orleans, Louisiana

Edmond, Oklahoma

Houston, Texas

Spring, Texas

show all

Gardeners' Notes:


On Jul 8, 2020, Jimrh from Saint Cloud, FL wrote:

The first season had beautiful blooms all over. Incredible every season afterwards Ive had trouble with brown mites.
Ive tried every spray known with terrible results. Hopefully Ill come up with the right combination of treatments. The plant grows very large here in central Florida. Looking forward to another beautiful bloom season someday. Not giving up yet.


On Jul 2, 2016, NkkSF from San Francisco, CA wrote:

This spectacular purple flowering vine was loaded with flowers mid-summer through last November. It's deciduous in San Francisco (CA), and took til May to start new leaves (we thought it might have died). Coming back into flower now (July). It's growing up and over an 8ft wooden fence, and blooming on both sides. As long as you wear garden gloves, you can trim and train it where to go. I'd like to propagate another plant to extend its protective spiny presence along our garden wall. I tried cuttings in a vase of water, but they died. Does anyone have success propagating it? And is it the kind that would work better with rooting hormone and directly into a pot? I'm experimenting with greener vs older cuttings. Thanks.


On Mar 20, 2016, coriaceous from ROSLINDALE, MA wrote:

Profuse bloom for at least six months a year, with spectacular displays of showy 3" blue--violet flowers in heads up to a foot across. The long-lasting flowers open deep violet and age gracefully to a light violet-blue. Flowers are self-cleaning, and each huge head con7tinues to produce new buds at the tip for months. Blooms only on new wood.

This thorny, scandent shrub/vine will sprawl without support and regular training. Very fast growing, it can get 10-15' tall in a single season, and as wide as tall, even when grown in a large pot in Rhode Island. I find the small clinging recurved spines more annoying than lethal, but they make it challenging to untangle cut stems in pruning and training. Heavy gloves are essential.

Prefers moist rich soil, and luxuriate... read more


On Apr 30, 2015, jkorman from Fernandina Beach, FL wrote:

Planted in a protected, full-sun location this plant overwinters in Northeast Florida. Must have lots of space to climb.


On Aug 17, 2014, DOLLYBELLE from Edmond, OK (Zone 7a) wrote:

I planted it this spring and so far, there have been very few blooms. We thought it was going to be awesome, but the cardinal vine is outshining it. It's on a very tall, wide iron support with sun almost all day. Any suggestions?


On Jul 10, 2007, Kell from (Zone 9b) wrote:

This plant has the worst hooks on the back of the leaves and down the stems and trunks. They do not just cut you, they take hunks of skin out of you for the spines hook under and grab your skin in many places. Even with minimal contact it gets you! Does much more damage than the thorniest of roses. But it is so beautiful!


On Jul 5, 2007, brical1 from Inland S.E QLD ,
Australia wrote:

This vine flowers for months here,has huge clusters of beautiful lavender blooms


On May 16, 2002, poppysue from Westbrook, ME (Zone 5a) wrote:

This beautiful member of the nightshade family can be grown in a large container as a speciman plant. It climbs 3-4 feet high with hook like spines. In the heat of summer it will be covered with large clusters of lavender, 2.5-inch flowers. To over winter cut plants back by one half and store in a cool room with little water.