How to Grow Kew White
Kew White
Passiflora edulis f. flavicarpa
vineKew White is a vigorous passion fruit vine producing large, fragrant white flowers followed by golden-yellow, egg-shaped fruits. The vine is a decorative and productive cultivar prized for its ornamental appeal and sweet, aromatic passion fruit. It is a subtropical to tropical plant that can be grown in containers in cooler climates.
When should you plant Kew White in your zone?
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Example Kew White timeline · Pittsburgh, PA (Zone 6b)
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Plant Kew White
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Kew White
Around Oct 14≈ 180 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Kew White dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11; can be container-grown in cooler zones with winter protection
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Seedling
3-4 weeksTender young plant with 2-4 true leaves, delicate growth
Keep in warm conditions (70-80°F), provide bright indirect light, maintain consistent moisture without waterlogging, protect from cold
Vegetative
8-12 weeksRapid vine growth with heart-shaped leaves, establishing main stem and lateral shoots
Provide sturdy support structure or trellis, prune to encourage branching, fertilize monthly with balanced fertilizer, maintain warm temperatures
Flowering
6-10 weeks (flowers appear in succession)Production of large, fragrant white flowers with distinctive purple-blue corona filaments, 3-4 inch diameter blooms
Ensure good air circulation to prevent fungal issues, maintain consistent watering, reduce nitrogen to encourage flowering over vegetative growth, hand-pollinate if insect activity is low
Fruiting
8-12 weeksGolf ball to egg-sized golden-yellow fruits develop from pollinated flowers, initially hard and green, ripening to yellow
Continue regular watering, support fruit-laden branches, reduce excessive pruning to avoid fruit drop, monitor for pests that target developing fruits
Harvest
Variable; staggered harvest over 4-6 weeksMature yellow fruits wrinkled and slightly soft, ready for picking
Harvest when fully yellow and fragrant; fruits can be picked firm and allowed to ripen off the vine for 2-3 days
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Allow controlled feeding as these support butterfly populations; use netting if protection is critical; handpick larvae if necessary
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Increase humidity through misting, spray with water to dislodge, use neem oil or insecticidal soap in severe infestations
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Spray with insecticidal soap, apply neem oil, remove affected leaves, introduce natural predators like ladybugs
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Manual removal with soft brush, horticultural oil spray, neem oil applications
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Yellow sticky traps, spray with insecticidal soap, neem oil, improve air circulation
Uses
Fresh fruit and juice
CulinaryKew White passion fruits have sweet, aromatic pulp ideal for eating fresh by scooping with a spoon, blending into smoothies, or processing for juice. The golden variety is notably sweeter and less acidic than purple passion fruit varieties. [source]
Desserts and preserves
CulinaryUse the pulp in mousse, pavlova, curd, jam, or to flavor yogurt, ice cream, and baked goods. The seeds are edible and add pleasant texture. [source]
Herbal remedy
MedicinalPassion fruit leaves and vine have traditionally been used to make calming teas and herbal preparations believed to support relaxation and sleep. Contains alkaloids and glycosides with potential sedative properties. [source]
Decorative vine
OrnamentalKew White is valued for its stunning large white flowers with distinctive colorful corona filaments, making it an attractive garden feature for pergolas, trellises, and arbors. The fragrant blooms and ornamental foliage provide year-round visual interest. [source]
Butterfly host plant
WildlifePassion vines are the primary host plant for passion vine butterfly caterpillars (Heliconius species), supporting critical butterfly populations. Growing Kew White contributes to pollinator habitat. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest fruits when skin color changes from green to golden-yellow and fruit becomes slightly fragrant and slightly soft to pressure. Ripe fruits may drop naturally from the vine. Cut fruit with ½-inch stem attached or gently twist to detach. For storage, keep firm fruits at room temperature for 2-3 days to ripen, then refrigerate for up to 2 weeks. Ripe fruit has wrinkled skin and is aromatic.
Fun Facts
- 🌱 The distinctive corona filaments in the flower are said to resemble the Crown of Thorns, leading to the plant's religious symbolism in Christian cultures.
- 🌱 Kew White is also known as 'Golden Passion Fruit' because it produces yellow fruits rather than the purple fruits of standard passion fruit vines, and the yellow variety is typically sweeter and less acidic.
- 🌱 A single passion vine flower is pollinated by only one or two specific bee species, demonstrating remarkable evolutionary co-adaptation between plant and pollinator.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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