Passiflora Alata (Maroon Krishna Kamal Plant)
Few flowers in the world carry as many stories as the Passiflora Alata — the Maroon Krishna Kamal. In India, the Krishna Kamal name connects the flower to the hundred petals of Lord Krishna's crown; the Western missionaries who encountered the passion flower in the Amazon named the genus Passiflora from flos passionis — Flower of the Passion — mapping its intricate anatomy to the Passion of Christ; and the Amazonian peoples who have known it longest call it ouvaca, meaning simply "red star." All three names are earned. The flower of Passiflora alata is 7–10 cm across, with deep crimson-maroon curved tepals that curve backward to expose a spectacular corona of concentric rings in banded purple and white — eight separate corona layers, a structural complexity shared with only one other species in the entire genus. The stems are distinctly four-winged — the meaning of alata, Latin for "winged" — a feature visible even on a young plant. It is fragrant, RHS Award of Garden Merit holder, a powerful pollinator attractor, and produces large, sweet, edible passion fruits. A vigorous, sun-loving climber for any Indian garden wall, pergola, or terrace trellis.
Light
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Full sun to bright partial shade — at least 5–6 hours of direct sun daily for reliable flowering and fruiting. A south or west-facing wall, pergola, or trellis in an open outdoor position is ideal. In full sun, flowering is most prolific and fruits develop best. In semi-shade it will grow vigorously but flower less freely. This is an outdoor climber; it can be container-grown on a sunny terrace but needs a robust trellis or support structure to climb.
Watering
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Regular and consistent — water deeply 2–3 times a week in summer, allowing the top 3–4 cm to dry slightly between waterings. Never allow to fully dry out; consistent moisture during the growing and flowering season supports heavier bloom production. Reduce to once or twice a week in cooler months. During India's monsoon, established in-ground plants need little supplement — ensure drainage is excellent to prevent waterlogging. Container plants need more frequent checking in peak summer heat.
Humidity
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Naturally adapted to humid tropical conditions — India's climate is ideal with no supplemental humidity needed. Grows well from coastal humid regions to drier inland conditions. Good air circulation around the vine prevents fungal issues in very humid monsoon conditions. One of the most climatically versatile passion flowers for the subcontinent.
Growing Media
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Well-draining, moderately fertile loamy soil. pH 6.0–7.5. Amend clay-heavy garden soil with compost and coarse sand. For containers, quality potting mix with 20–30% perlite in a large pot (minimum 40 cm diameter) — the vigorous root system needs room. The vine is a strong, fast grower; ensure the support structure — wall trellis, pergola, or wire framework — is robust enough to hold a mature, heavy vine. Mulch the base to retain moisture and keep roots cool.
Feeding
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Feed monthly during the growing season with a balanced fertilizer. For maximum flower and fruit production, use a phosphorus-rich formula (NPK 10-30-10 or similar) once in early spring and once after the first flowering flush. Avoid excessive nitrogen — it produces vigorous green growth at the expense of flowers. Apply to moist soil. Slow-release granules every 3 months are a good low-maintenance supplement between liquid feeds. No feeding in winter.
Not Flowering Despite Good Growth
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Too much nitrogen fertilizer or insufficient sun — both promote lush foliage at the expense of flowers. Switch to a phosphorus-rich fertilizer, ensure the plant gets at least 5–6 hours of direct sun, and prune back older wood to stimulate new flowering shoots. Avoid over-feeding with high-nitrogen products.
Flower Buds Dropping Before Opening
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Irregular watering, extreme heat stress, or sudden environmental change. Maintain consistent soil moisture during the flowering period — do not allow to dry out. Provide afternoon shade in peak summer (above 40°C). Avoid moving or repotting the plant while buds are forming.
Yellowing Leaves
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Overwatering or nutrient deficiency — the two most common causes. Check soil moisture first; if soggy, improve drainage and reduce watering. If soil moisture is fine, apply a balanced fertilizer — yellowing between green veins (interveinal chlorosis) indicates magnesium or iron deficiency, corrected with a chelated micronutrient feed.
Caterpillars Defoliating Stems
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Passion flower is a host plant for several butterfly species — larvae feed on the leaves, which is ecologically normal and the plant regrows rapidly. For heavy infestations, hand-remove caterpillars or use a Bacillus thuringiensis (Bt) biological spray — safe for pollinators and non-target insects. Avoid broad-spectrum insecticides which will harm the butterflies you are also trying to attract.
Root Rot or Vine Wilting
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Waterlogged soil during monsoon season. Ensure the planting site or container drains freely. For in-ground plants in heavy soil, raise the planting position and amend with coarse sand. Container plants: move to shelter during sustained heavy rain or ensure unobstructed drainage holes.
📋 Quick Plant Profile
| Botanical Name | Passiflora alata Curtis |
| Name Meaning | Passiflora = flos passionis, Flower of the Passion; alata = Latin for "winged" — the four-winged stems |
| Amazonian Name | Ouvaca — "red star"; also maracujá de refresco (fragrant passion fruit) |
| Common Names | Maroon Krishna Kamal, Winged-Stem Passion Flower, Fragrant Granadilla, Red Star |
| Family | Passifloraceae |
| Origin | Amazon; Peru to eastern Brazil; tropical rainforest margins |
| Flower | 7–10 cm; deep crimson-maroon tepals; eight concentric corona rings in banded purple and white; highly fragrant |
| Corona Complexity | Eight concentric corona layers — shared with only one other species in the genus of 500+ |
| Stem Feature | Four-winged quadrangular stems — visible even on young plants; primary ID feature |
| Fruit | 10–12 cm egg-shaped; ripens yellow-orange; edible, sweet-acidic, highly aromatic |
| Award | RHS Award of Garden Merit |
| Light | Full sun to bright partial shade; 5–6 hours direct sun minimum for flowering |
| Watering | Consistent moisture; top 3–4 cm dry between waterings; excellent drainage essential |
| Temperature | Above 10°C year-round; thrives across India's tropical and subtropical zones |
| Growth Rate | Vigorous — to 6 m; requires robust support structure; tendril climber |
| Wildlife Value | Strong butterfly and bee attractor; host plant for several butterfly species |
| Display Uses | Garden wall, pergola, arbour, terrace trellis, large container with support |
| Ideal For | Gardens, Pergolas, Sunny Terraces, Butterfly Gardens, Edible Gardens, Gifting |
| Care Level | Easy — full sun, consistent watering, prune after each flush, and phosphorus-rich feed |
Size Details
1 Passiflora Alata (Maroon Krishna Kamal Plant)
Size:
(Plant sizes may vary slightly based on seasonal growth, individual plant characteristics, and current stock.)
Care Instructions
Difficulty: Easy
Light:
Water:
Growing Media:
Feeding & Fertilization:
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