North America Non-native Plant

Crossberry

Botanical name: Grewia occidentalis

USDA symbol: GROC3

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

Crossberry: A Charming South African Shrub for Warm Climate Gardens If you’re looking to add a touch of exotic charm to your warm-climate garden, the crossberry (Grewia occidentalis) might just be the delightful shrub you’ve been searching for. This South African native brings a unique combination of star-shaped purple flowers, ...

Crossberry: A Charming South African Shrub for Warm Climate Gardens

If you’re looking to add a touch of exotic charm to your warm-climate garden, the crossberry (Grewia occidentalis) might just be the delightful shrub you’ve been searching for. This South African native brings a unique combination of star-shaped purple flowers, colorful berries, and drought tolerance that makes it an interesting addition to Mediterranean-style landscapes.

What Makes Crossberry Special?

Crossberry is a compact shrub that rarely disappoints when it comes to visual appeal. Its most striking feature is undoubtedly its star-shaped purple flowers that appear throughout the warmer months, followed by small orange-red berries that give the plant its common name. The heart-shaped leaves provide a lovely backdrop for these colorful displays, creating an overall appearance that’s both exotic and approachable.

Where Does Crossberry Come From?

This charming shrub hails from southern Africa, particularly South Africa, where it thrives in the region’s Mediterranean-like climate. While it’s not native to North America, crossberry has found a home in gardens across warmer regions where gardeners appreciate its drought tolerance and unique beauty.

Garden Design and Landscape Uses

Crossberry works wonderfully as:

  • A specimen plant in small gardens
  • Part of a mixed shrub border
  • An informal hedge or screen
  • A focal point in drought-tolerant landscapes
  • An addition to wildlife-friendly gardens

Its compact size and manageable growth make it particularly suitable for Mediterranean gardens, xeriscapes, and areas where you want color without high water demands.

Growing Conditions and Care

One of crossberry’s most appealing qualities is its relatively low-maintenance nature once established. Here’s what this South African beauty prefers:

Climate Requirements: Crossberry thrives in USDA hardiness zones 9-11, making it suitable for warm, frost-free areas or regions with only light, occasional frosts.

Sun and Soil: Plant your crossberry in full sun to partial shade with well-draining soil. It’s quite adaptable to different soil types but absolutely must have good drainage to prevent root problems.

Water Needs: While young plants need regular watering to establish, mature crossberry shrubs are quite drought tolerant. Water deeply but infrequently once established.

Planting and Care Tips

Getting your crossberry off to a good start is straightforward:

  • Plant in spring after the last frost
  • Water regularly during the first growing season
  • Apply mulch around the base to retain moisture and suppress weeds
  • Prune lightly after flowering to maintain shape
  • Feed with a balanced fertilizer in spring if desired

Wildlife and Pollinator Benefits

One of the best reasons to consider crossberry is its value to local wildlife. The nectar-rich purple flowers are magnets for bees and butterflies, while the small berries provide food for birds. If you’re creating a wildlife-friendly garden, this shrub can be a valuable addition to your pollinator support system.

Should You Plant Crossberry?

Crossberry can be a delightful addition to warm-climate gardens, especially if you’re looking for something unique and relatively low-maintenance. However, since it’s not native to North America, you might also consider native alternatives that provide similar benefits while supporting local ecosystems more directly.

If you do choose to plant crossberry, you’ll likely find it to be a rewarding garden companion that brings color, wildlife interest, and exotic flair to your landscape without demanding too much attention in return.

Crossberry

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

Malvales

Family

Tiliaceae Juss. - Linden family

Genus

Grewia L. - grewia

Species

Grewia occidentalis L. - crossberry

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