Crossberry (Grewia caffra)

Crossberry

Grewia caffra

Its star-shaped flowers bloom in clusters, a cheerful addition to warm gardens. Deciduous shrub; common name: crossberry.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; full sun promotes maximum flowering and fruit production
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Watering Water deeply when the top 5 cm of soil dries out; tolerant of short periods of drought
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Temperature Hardy to light frosts; performs best in warm temperate to subtropical temperature ranges
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Characteristics

  • Leaf: Simple ovate leaves with serrated margins; glossy green upper surface, paler pubescent underside
  • Flower: Fragrant pale yellow to cream star-shaped flowers in axillary clusters of 3–6 blooms
  • Fruit: Four-lobed reddish-brown berry, cross-shaped when split open
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Care Guide

Watering

Maintain consistent soil moisture during active growth

Fertilization

Apply balanced organic fertilizer once monthly. Discontinue fertilization in late autumn to support dormancy

Banana peel compost tea:Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 for root drench to support flowering
Pruning
  • Prune immediately after flowering to shape the shrub and remove spent blooms
  • Thin overcrowded inner branches to improve airflow and light penetration
  • Remove dead or damaged stems in early spring to promote healthy new growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No identified toxicity to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden shrub; berries provide forage for native birds