# Yellow Bells (Tecoma stans)

Canonical: https://plantguide.ae/plants/yellow-bells · Updated: 2026-09-30
Source: Ghaf Gardens (https://plantguide.ae/plants/yellow-bells)

Yellow Bells · تيكوما صفراء · also called Yellow elder, Esperanza, Yellow trumpetbush  
shrub · exotic · family Bignoniaceae · grows 2–5 m tall, 2–4 m wide · fast growth  
full sun · low water need  
Ratings for Dubai (1–5, 5 is best): heat 5 · salt 2 · drought 4 · shade 1 · ease of care 4  
Uses: hedge, screen, specimen  
Garden styles: desert-modern, manicured

A fast, drought-tolerant shrub that covers itself in bright yellow trumpet flowers through spring and autumn, and keeps some bloom through summer even as growth slows in the worst heat.

## About

Meet yellow bells, the shrub that does bright, uncomplicated yellow better than almost anything else grown in Dubai. Clusters of bell-shaped, trumpet flowers cover the branch tips in flushes through spring and autumn, a warm, saturated colour that reads clearly from a distance and lifts a desert-modern planting out of its usual muted palette.

It grows with real energy — fast enough to fill a hedge or screen line within a season or two, and resilient enough to take a hard annual cut without sulking. That vigour gives it a slightly informal, exuberant character compared with more restrained flowering shrubs; it wants room to flush and rebound rather than being kept in a tight, static shape.

Through the hottest weeks of summer it takes a breather, growth and flowering both easing back, only to pick up again as the heat moderates — a plant with a genuine seasonal rhythm rather than a flat, year-round performance, which gives a garden built around it two real moments of drama each year.

Tecoma stans is native to the Americas, from the southern United States through Mexico and Central America into South America, but it has naturalised into warm-climate gardens worldwide, including widely across the UAE, as one of the more dependable yellow-flowering shrubs available. Its bell-shaped, fragrant flowers appear in clusters at the branch tips, giving the plant its common name and a genuinely showy display against dark green foliage.

In Dubai it behaves close to how it does in its native dry, warm-temperate range: flowering peaks in spring and again in autumn as temperatures moderate, while growth and bloom slow through July and August. That summer slowdown is normal semi-dormancy rather than a sign of trouble, and the plant resumes vigorously once temperatures ease. It takes hard pruning well, bouncing back quickly, which makes it forgiving for a hedge or screen that needs regular size control.

It works well alongside [Oleander](https://plantguide.ae/plants/oleander.md) and [Hibiscus](https://plantguide.ae/plants/hibiscus.md) for a long, low-water flowering season, and its bright yellow reads strongly against the muted tones of a desert-modern planting or as an informal flowering hedge in a more manicured layout. The clusters of narrow seed pods that follow flowering add a secondary textural interest, though they are modest compared with the flowers themselves.

Its vigour is the main thing to plan around: left unpruned it grows leggy and open, with branches that can split in wind, so the same fast growth that makes it such a quick hedge or screen also means it needs a genuine annual commitment to hard pruning, not occasional tidying, to stay dense and structurally sound.

## Through the year

Yellow bells follows a clear two-peak pattern in Dubai: a strong flush of bright yellow flowers in spring (March to May) after vigorous new growth following the winter prune, and a second flowering peak in autumn (October to December) as temperatures ease. Through July and August growth and flowering both slow noticeably in the summer heat — a normal semi-dormancy rather than a problem, provided watering stays consistent. New growth resumes strongly once the hard winter prune is done in January–February, and aphids are worth watching on the tender new flower buds that follow in April and May.

| When | What | Note |
| --- | --- | --- |
| Mar–May, Oct–Dec | Flowers: Main flowering peaks in spring and autumn | Some bloom continues through other months in a well-watered, sheltered spot. |
| Jul–Aug | Heat stress: Growth and flowering slow in peak heat | Normal summer semi-dormancy rather than a problem to fix; keep watering consistent through it. |
| Jan–Feb | Prune: Hard winter prune | Controls height and stiffens the plant's upright form ahead of the main spring flush. |
| Mar–Apr | New growth: Vigorous new growth after winter pruning |  |
| Mar, Sep | Feed: Light balanced feed | Applied at the start of each main growing flush. |
| Apr–May | Pest watch: Watch for aphids on new flower buds |  |

## Care in Dubai

- **Watering in summer:** Occasional deep watering; allow the soil to dry out between waterings once established.
- **Watering in winter:** Minimal supplemental watering is usually needed.
- **While establishing:** Water regularly for the first few months until the root system is established.
- **Soil:** Loose, moderately fertile, well-drained soil; tolerates a range of soil types.
- **Feeding:** A balanced fertiliser at the start of the spring and autumn growth flushes is sufficient.
- **Pruning:** Prune hard in winter to control height and encourage a strong, upright shape; it recovers quickly from heavy cutting. Treat this as an annual task rather than occasional tidying, since unpruned, leggy growth is more prone to wind damage.
- **Planting:** Plant in full sun — flowering is noticeably reduced in shade.
- **Pests and problems:** Aphids
- **Toxicity:** Not toxic to the plant's own tissue, but note that honey made from Tecoma stans flowers can be toxic if consumed in quantity — not a concern for ordinary landscape use.

## Good and bad

**Pros**
- Bright, showy yellow flowers over a long spring-to-autumn season
- Fast growing and quickly fills a hedge or screen line
- Drought tolerant once established, needing only occasional deep watering
- Tolerates hard pruning and bounces back vigorously

**Cons**
- Growth and flowering slow noticeably during peak summer heat (normal, not a fault)
- Fast growth means it needs regular pruning to stay in bounds
- Branches can split or tear in wind if left unpruned and leggy
- Attracts aphids, particularly on new flower buds

## Common mistakes

- Skipping the annual hard winter prune to save effort — the plant tolerates and genuinely needs this cut to stay dense; without it, growth turns leggy and open, and branches become more prone to splitting in wind.
- Planting it in a shaded spot for screening purposes — flowering drops off noticeably without full sun, undermining the main reason most people choose this shrub.
- Watering on a fixed frequent schedule through summer regardless of the plant's natural slowdown — it's normal for growth and bloom to ease in peak heat, and overwatering during that phase does not speed it back up.
- Ignoring aphid clusters on new flower buds in spring — left unchecked they can distort or reduce the flush of new flowers, though they are easily managed if caught early.
- Assuming it has the same drought and salt tolerance as a true UAE native — it performs well on low water once established but is not in the same league as ghaf, sidr or samr on either measure.

## Good to know

- Its summer slowdown in growth and flowering through July and August is a normal, healthy semi-dormant response to peak heat, not a sign of disease or a care problem.
- Honey made from Tecoma stans flowers has been reported as toxic if consumed in quantity — a genuine botanical curiosity, though not a practical concern for ordinary garden use of the plant itself.
- It recovers vigorously from hard pruning, which is unusual among flowering shrubs and is exactly why it suits a hedge or screen that needs regular size control.
- Salt tolerance is modest compared with true UAE natives, so it is a better fit for an inland garden than a spot exposed to direct sea spray.

## Using it in a garden

Roles: Flowering hedge, Screen, Specimen

Give yellow bells full sun for the strongest flowering — it noticeably underperforms in shade. Its fast growth suits a hedge or screen where quick coverage matters, but budget for an annual hard prune to keep it dense rather than leggy and open, since unpruned growth is genuinely more prone to wind damage. It reads best in a desert-modern scheme as a strong colour accent against muted gravel and silver foliage, or as an informal flowering hedge in a more relaxed layout. Keep it back from very exposed, high-wind corners unless it will be pruned regularly, since leggy, unpruned branches are the ones most likely to split.

- [Oleander](https://plantguide.ae/plants/oleander.md): Oleander's tougher drought and salt tolerance complements yellow bells' need for slightly more consistent water, while both flower over a long warm season.
- [Hibiscus](https://plantguide.ae/plants/hibiscus.md): Hibiscus adds a different flower form and a range of colours alongside yellow bells' clear yellow, extending the overall bloom display.
- [Texas Sage](https://plantguide.ae/plants/texas-sage.md): Texas sage's silver-grey foliage and occasional purple flush provide a cooling visual contrast next to yellow bells' bright, saturated yellow.
- [Ixora](https://plantguide.ae/plants/ixora.md): Ixora's compact, continuous flowering fills a lower layer beneath yellow bells' taller, more open growth habit.

## FAQ

**Why has my yellow bells stopped flowering in summer?**  
This is normal. Tecoma stans slows its growth and flowering through the hottest part of the year in Dubai, typically July and August, as a form of semi-dormancy rather than a sign of a problem. Keep watering consistent and it will resume flowering strongly as temperatures ease into autumn.

**How hard can I prune yellow bells?**  
Quite hard. It's a vigorous, fast-recovering shrub, and a hard winter prune to control height and shape is standard practice — it bounces back with strong new growth ahead of the spring flowering flush.

**Is yellow bells a good alternative to oleander?**  
It's a reasonable one for colour and toughness, though it lacks oleander's extreme drought tolerance and doesn't carry the same toxicity risk, which makes it a safer choice near children's play areas or edible gardens.

**Why do my yellow bells branches split in the wind?**  
This usually happens to plants left unpruned for too long, which grow leggy and top-heavy. An annual hard winter prune keeps the growth more compact and structurally sound, reducing the risk of wind damage.

## Related plants

[Oleander](https://plantguide.ae/plants/oleander.md) · [Hibiscus](https://plantguide.ae/plants/hibiscus.md) · [Ixora](https://plantguide.ae/plants/ixora.md)

## Photos

![Tecoma stans in IIT-Delhi](https://upload.wikimedia.org/wikipedia/commons/9/97/Tecoma_stans_in_IIT-Delhi.jpg)  
Photo: Sarbjit Bahga / CC BY-SA 4.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Tecoma_stans_in_IIT-Delhi.jpg))

![Science centre](https://upload.wikimedia.org/wikipedia/commons/7/7e/Tecoma_stans_%28yellow_bell_flower%29_30.jpg)  
Photo: Vengolis / CC BY-SA 3.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Tecoma_stans_(yellow_bell_flower)_30.jpg))

![Ipê-de-jardim (do tupi 'ypé), Tecoma stans, em Bagé-RS, Brasil](https://upload.wikimedia.org/wikipedia/commons/d/db/Ip%C3%AA-de-jardim_%28do_tupi_%27yp%C3%A9%29%2C_Tecoma_stans%2C_em_Bag%C3%A9-RS%2C_Brasil.jpg)  
Photo: Gabriel Collares / CC BY 4.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Ip%C3%AA-de-jardim_(do_tupi_%27yp%C3%A9),_Tecoma_stans,_em_Bag%C3%A9-RS,_Brasil.jpg))

## Sources

- [UF/IFAS Extension: Tecoma stans — Yellow Elder (ENH783/ST625)](https://ask.ifas.ufl.edu/publication/ST625)
- [Native Plant Society of Texas: Tecoma stans](https://www.npsot.org/posts/native-plant/tecoma-stans)