Dietes grandiflora (DI3) ‘Banana Split™’
Dietes grandiflora (DI3) ‘Banana Split™’
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Dietes grandiflora ‘Banana Split™’ is a striking evergreen perennial valued for its bold architectural form and elegant iris-like flowers. It forms large, clump-growing tufts of sword-shaped, fan-arranged dark green leaves that bring strong structure and year-round visual appeal to landscapes.
This improved form produces tall, slender flower stems bearing large white blooms with distinctive yellow nectar guides and violet markings, creating a vibrant contrast against the foliage. Growing from underground rhizomes, it gradually expands into dense, low-maintenance clumps, making it ideal for mass planting, borders, and modern landscape designs.

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Mature height
1 to 1.5m
Mature width
1 to 1.5m
Spacing
0.8 to 1.2m
Evergreen/Deciduous
Evergreen
Foliage
White flowers with yellow and violet markings, dark green sword-like foliage
Flowering Period & Fruit Development/Harvest
Spring through summer, with intermittent flowering in mild climates
Sun tolerance
Full sun to partial shade
Maintenance
Low, remove old flower stems and damaged leaves as needed
Root System
Rhizomatous root system forming expanding clumps, ideal for mass planting and erosion control