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The Plont plant library
Compare Thunbergia grandiflora with Passiflora caerulea. Both appear in the flowering category of Plont’s catalog. Use their recorded differences to prepare questions for your nursery.
Swipe across the table to compare both plants.
| Catalog field | Nilkantha Lata (Blue Trumpet Vine) | Passion Flower |
|---|---|---|
| Botanical name | Thunbergia grandiflora | Passiflora caerulea |
| Hindi name (draft) | नीलकंठ लता | पैशन फ्लावर |
| Other catalog names | blue trumpet vine, bengal clock vine, nilkantha | passion flower, krishna kamal |
| Light starting point | Full sun (6+ hours) | Full sun (6+ hours) |
| Approximate growing range | 10–36°C | 8–36°C |
| Catalog care estimate | Easy | Moderate |
Both entries list full sun (6+ hours). Light alone does not distinguish this pair in the catalog; compare the temperature and care-level entries below.
Nilkantha Lata (Blue Trumpet Vine) has a recorded range of 10–36°C; Passion Flower is listed at 8–36°C. The recorded ranges overlap from 10 to 36°C. That overlap compares the draft entries; it is not proof that either plant will suit the spot.
Nilkantha Lata (Blue Trumpet Vine) is marked easy, compared with moderate for Passion Flower. Treat that as a planning estimate, then ask which care tasks each plant needs in your conditions.
A comparison cannot set a watering date. Check moisture first: pot size, growing mix and current weather change how quickly a container dries. Record what you notice and decide when to check again.
Read the RHS guide to watering containers for general container advice, or use Plont’s plant observation checklist. The RHS source supports this general advice; it does not verify the species-specific draft values above.
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