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Potato Vine

Solanum laxum

Also listed as Solanum boerhaviifolium, Solanum jasminoides

Also known as Jasmine Nightshade

vine☀️ full sun💧💧 moderate water❄ Hardy: Zone 9a – Zone 11b

Climate Match for your location

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A vigorous climbing vine with delicate purple or white star-shaped flowers and glossy green foliage. Often grown as a tender perennial on trellises and arbors in temperate climates.

Why grow it

Solanum laxum offers reliable summer-to-fall flowering on a vigorous vine suited to vertical growing in temperate zones where it cannot overwinter outdoors. Compared to hardy ornamental vines like clematis, it provides denser foliage coverage and tolerates partial shade better, though it requires frost protection or annual replanting in colder regions. The delicate star flowers attract pollinators and provide season-long interest without the pruning demands of some alternative climbing species.

Watch out for

This plant benefits from consistent moisture during active growth but is prone to powdery mildew in humid conditions with poor air circulation, so adequate spacing on supports is important. In mild winter climates, it can grow vigorously enough to become difficult to manage if not regularly pruned back, requiring planned maintenance rather than casual tending.

Overview

Form
Spreading
Growth Rate
fast
Size
6–12′ tall × 4–8′ wide
Dormancy
semi-evergreen
Family
Solanaceae
Pollinators & beneficial insects

Native Range

South America

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummerFall

Notable Cultivars

'Album' features white flowers and is popular for its bright appearance, while the species type produces lavender-blue blooms.

Similar climbers you might consider:

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Companion Planting

Plants well with