North America Non-native Plant

Citrullus Lanatus Var. Caffrorum

Botanical name: Citrullus lanatus var. caffrorum

USDA symbol: CILAC2

Life cycle: annual

Habit: vine

Native status: Not native but doesn't reproduce and persist in the wild

Citrullus lanatus var. caffrorum: The Mystery Watermelon Variety If you’ve stumbled across the name Citrullus lanatus var. caffrorum in your plant research, you’re not alone in wondering what exactly this plant is. This particular variety designation represents one of those fascinating botanical mysteries that gardeners occasionally encounter – a plant ...

Citrullus lanatus var. caffrorum: The Mystery Watermelon Variety

If you’ve stumbled across the name Citrullus lanatus var. caffrorum in your plant research, you’re not alone in wondering what exactly this plant is. This particular variety designation represents one of those fascinating botanical mysteries that gardeners occasionally encounter – a plant name that exists in scientific literature but offers frustratingly little practical growing information.

What We Know (And Don’t Know)

Here’s the honest truth: Citrullus lanatus var. caffrorum is essentially a botanical ghost. While we know it’s classified as an annual forb – basically a non-woody plant that completes its life cycle in one growing season – most other details remain elusive. We don’t even have a reliable common name for this variety, which tells you something about how rarely it’s encountered in everyday gardening.

What we can say is that this plant belongs to the watermelon family, as Citrullus lanatus is the scientific name for watermelon. The variety name caffrorum historically suggested connections to southern African regions, but modern botanical references rarely distinguish this as a separate variety.

The Geographic Mystery

The geographical distribution of this variety remains unknown, making it impossible to determine where it might naturally occur or where it could be successfully cultivated. Without this crucial information, we can’t even begin to discuss its native status or potential role in native plant gardening.

Should You Try to Grow It?

Here’s where things get tricky. With no information about:

  • Growing conditions or requirements
  • Hardiness zones
  • Invasive potential
  • Wildlife benefits
  • Propagation methods

It’s nearly impossible to recommend whether or how to grow this plant. The lack of available information suggests it’s either extremely rare, possibly extinct in cultivation, or has been reclassified under different botanical names.

A Better Alternative

If you’re interested in watermelon relatives for your garden, consider sticking with well-documented species. Regular watermelons (Citrullus lanatus) or other members of the cucumber family might scratch that same botanical itch while offering actual growing guidance and known benefits.

For native plant enthusiasts, focus on locally native species with clear documentation, known growing requirements, and established wildlife benefits. Your local native plant society or extension office can point you toward better-documented alternatives that will thrive in your specific region.

The Takeaway

Sometimes in the plant world, we encounter names that are more historical curiosities than practical gardening options. Citrullus lanatus var. caffrorum appears to fall into this category. While botanical mysteries can be fascinating, they don’t make for reliable garden additions.

When in doubt, choose plants with clear growing instructions, known benefits, and established track records. Your garden (and your sanity) will thank you for it!

Citrullus Lanatus Var. Caffrorum

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Cucurbitaceae Juss. - Cucumber family

Genus

Citrullus Schrad. - watermelon

Species

Citrullus lanatus (Thunb.) Matsum. & Nakai - watermelon

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA