By Wendy Diaz, NC State Extension Master Gardener^SM volunteer of Durham County

Thinking of growing creeping cucumber? Don’t get yourself in a “pickle” by growing it near your vegetable variety. During the fall of 2024, I observed a patch of green ground cover formed by a delicate creeping vine in an area that previously was covered with only pine needles and cones in my woodland garden. This part of our yard was void of vegetation because I removed forsythia bushes some years ago in an effort to plant mainly natives in my woodland garden, so I was curious about this volunteer plant.

Patch of creeping cucumber vine (Melothria pendula) spreading on ground in woodland garden. (Image credit: Wendy Diaz)

Identifying the Creeping Cucumber

Rather than instantly judging it to be a weed that had to be pulled up, I did some research and identified it as Melothria pendula, a native herbaceous perennial common in the southeast.¹ I decided to leave this indigenous volunteer plant in my natural area, and I even tried to train it up the nearby rose arbor.

Creeping cucumber vine trained to climb up rose arbor at the entrance to woodland garden natural area. (Image credit: Wendy Diaz)

Common names of Melothria pendula are creeping cucumber, Guadeloupe cucumber, meloncito, speckled gourd, and my favorite, mouse melon.² Creeping cucumber is a member of the cucumber family (Cucurbitaceae). It is a slender climbing vine that uses coiled tendrils as an appendage from the leaf axis to grab onto other structures or vegetation. It prefers bottomland forests, marshes and moist roadsides. Although it’s a perennial in our zone, winter severity may affect whether it returns from the same vine.

The leaves are alternate, palmately 3-to-5 lobed-shaped and resemble small ivy or grape leaves. The charming tiny (1/4 inch wide) yellow flowers have 5 shallowly notched corolla lobes held on a long pedicel which blooms from summer into fall, with peak flowering in August and September in the Piedmont.

Close up of creeping cucumber (Melothria pendula) leaves and flower. (Image credit: Wendy Diaz)

The fruit is a mottled green and elliptical-shaped berry that resembles tiny watermelons (1 inch long).

Closeup of creeping cucumber young berries and vine. (Image credit: Wendy Diaz)

The vine can grow up to 15 feet long. The light green berries can be eaten raw but may have a laxative effect especially when eaten ripe when black colored.³

Creeping cucumber vine with grape-shaped leaves, tendrils, yellow flowers and small green berries. (Image credit: Wendy Diaz)

Creeping Cucumber and Pickleworm Pest

In 2025, the creeping cucumber vine reappeared in my garden, though not as vigorous as last year due to the lack of rain in the previous two months. Unfortunately, my new groundcover is a major host of a number of different viruses and other pests (also reservoirs of viruses during the offseason too) that harm the vegetable cucumber variety.⁴

During the end of the cucumber harvest season, pickleworms (larval stage of a moth) appeared in my small vegetable cucumbers for the first time, but I wasn’t upset because I already harvested many pounds of pristine cucumbers.

Young pickleworm larva (Diaphania nitidalis) (Stoll) burrowing into a young cucumber. (Image credit: Wendy Diaz)

Pickleworms are a tropical species and usually show up in North Carolina in August and September and cannot overwinter in our colder winters (overwintering habitats are Florida and Texas).⁵ Creeping cucumber serves as an important wild host of pickleworms; so, if you are a fan of dill pickles and Greek salad, like I am, you should pull up the creeping cucumber in order to preserve your garden variety of cucumbers.

Young pickle worm with brown head. (Image credit: Wendy Diaz)

Young larvae are yellowish-white with black spots and brown head. Gardeners usually find the pulpy frass (fecal material) at their entrance holes in the cucumber skin.⁶

Pickleworm entry hole and frass (fecal matter) on cucumber from my vegetable garden on September 5, 2025. (Image credit: Wendy Diaz)

Managing Creeping Cucumber Near Vegetable Gardens

To avoid the pickleworm and preserve my volunteer creeping cucumber ground cover, I think I will try and plant my vegetable cucumber starts in early spring this time. As a precaution, I will burn the old vegetable cucumber vines in the fall and make sure the creeping cucumber is a good distance from my raised vegetable garden for the next growing season. It is good pest management practice to remove creeping cucumber plants in areas adjacent to vegetable cucumber plants.^7,8

If I continue to have a pest problem with my cucumber fruit, I may have to give up on my native creeping cucumber ground cover and climbing vine because I do love a fresh Greek salad and dill pickles.

Notes

1. NC Botanical Gardens on creeping cucumber: https://fsus.ncbg.unc.edu/show-taxon-detail.php?taxonid=3421
2. Lady Bird Johnson Wildflower Center at The University of Texas at Austin on creeping cucumber: https://www.wildflower.org/plants/result.php?id_plant=mepe3
3. NCSU Plant Toolbox reference, with information on edible properties and poison severity: https://plants.ces.ncsu.edu/plants/melothria-pendula/
4. University of Florida IFAS Extension on weed hosts of vegetable viruses: https://edis.ifas.ufl.edu/publication/IN931
5. University of Florida IFAS Extension on pickleworms: https://edis.ifas.ufl.edu/publication/IN321
6. Virginia Cooperative Extension information on Pickleworm: https://www.pubs.ext.vt.edu/3104/3104-1559/3104-1559.html
7. Organic management of pickleworm: https://eorganic.org/node/5320
8. Clemson Cooperative Extension information on cucurbit pests, including Pickleworm: https://hgic.clemson.edu/factsheet/cucumber-squash-melon-other-cucurbit-insect-pests/

Resources and Additional Information

On the blog, check out our three-part series on growing cucumbers in the vegetable garden:

https://wp.me/p2nIr1-671

https://wp.me/p2nIr1-6eD

https://wp.me/p2nIr1-6nl

Edited by Susan Sharp, NC State Extension Master Gardener ^SM volunteer of Durham County

Article Short Link: https://wp.me/p2nIr1-6zv