Is Retama easy to grow?

Retama is relatively undemanding once established, particularly in dry conditions. The most common mistakes are poor drainage and incorrect sun placement.

How big does Retama get?

Retama typically reaches 4.6–6.1 m. Final size depends on soil quality and available root space. Allow adequate spacing at planting — most plants reach their full spread within 5–10 years.

How much sun does Retama need?

Retama grows best in full sun. Planting in the wrong light level is the single most common cause of poor performance. Check the aspect of your site before choosing a position.

Is Retama suitable for a small garden?

Retama can reach a significant size and is better suited to larger gardens where root and canopy spread are not a constraint. For smaller spaces, consider a more compact alternative in the same genus or a dwarf cultivar if one is available.

Does Retama attract wildlife?

Retama is known to attract bees, birds. For maximum benefit, avoid deadheading all flowers — seed heads and spent blooms are often as valuable to wildlife as the flowers themselves.

Retama (Parkinsonia aculeata)

About Retama

Retama (Parkinsonia aculeata) is grown for garden performance matched to its site needs. Expect full sun, typically 4.6–6.1 m tall, low water once established.

Sun Full

Water Low

Height 15–20 ft (460–610 cm)

Spread 20–25 ft (610–760 cm)

Season Spring, Summer, Fall, Winter

Hardiness Zones 8–11

Can Retama take your winter? Type your ZIP below and compare it with Zones 8–11.

2023 USDA ZIP listings (PRISM / USDA-ARS). Find Your USDA Hardiness Zone · Official USDA map.

Is Retama Right for Your Garden?

Best for

Larger gardens needing height, structure, or screening
Dry gardens, gravel schemes, or water-restricted sites
Open, sunny positions with good air movement
Wildlife-friendly gardens — known to attract bees

Not recommended if

Small or confined spaces where root and canopy spread is a problem
Permanently moist or boggy ground
Dense shade or north-facing walls

Trade-off to know

Retama is tolerant once established, but needs consistent water in the first season. Drought tolerance builds slowly — expect 1–2 years before it can fend for itself in dry spells.

Growing Conditions for Retama

Site checklist

Sun: full sun
Soil drainage: Well Drained
Water: Low
Hardiness zones: 8, 9, 10, 11

Adjustments

Wrong light level is the most common cause of weak performance
Fix drainage before treating leaf symptoms

Shared growing steps for this plant’s group: How to Grow Palo Verde. Notes below stay specific to this plant.

How to Care for Retama

Establishment

Plant Retama in a site matching its sun and drainage needs
Water regularly until roots settle, then match watering to the plant’s need

Ongoing care

Mulch to buffer moisture swings
Remove dead or damaged growth in season
Avoid constant wet foliage where disease pressure is high
Plan support or pruning for long-term structure

Diagnosing Problems with Retama

Symptom	Likely cause	Confirming sign	Action
Leaves wilting or scorching at tips in dry weather	Drought stress	Soil dry 5+ cm deep; leaf tips brown and crisp, not soft	Water Retama deeply at the base once weekly in dry spells. Mulch around the root zone to retain moisture.
Sudden wilting on one branch while rest of plant looks healthy	Root rot from poor drainage in one spot	Affected branch has dark, mushy roots when gently uncovered	Cut back affected branch to healthy wood. Improve drainage in that area before the next growing season.
Dieback of branch tips after winter	Frost damage or wind scorch	Damage consistent across exposed side; wood brown inside tip	Prune Retama back to healthy green wood in late spring once growth resumes. Do not prune earlier — wait to confirm what has survived.

Leaves wilting or scorching at tips in dry weather

Likely cause: Drought stress
Confirming sign: Soil dry 5+ cm deep; leaf tips brown and crisp, not soft
Action: Water Retama deeply at the base once weekly in dry spells. Mulch around the root zone to retain moisture.

Sudden wilting on one branch while rest of plant looks healthy

Likely cause: Root rot from poor drainage in one spot
Confirming sign: Affected branch has dark, mushy roots when gently uncovered
Action: Cut back affected branch to healthy wood. Improve drainage in that area before the next growing season.

Dieback of branch tips after winter

Likely cause: Frost damage or wind scorch
Confirming sign: Damage consistent across exposed side; wood brown inside tip
Action: Prune Retama back to healthy green wood in late spring once growth resumes. Do not prune earlier — wait to confirm what has survived.

Retama FAQ

Is Retama easy to grow?

Retama is relatively undemanding once established, particularly in dry conditions. The most common mistakes are poor drainage and incorrect sun placement.
How big does Retama get?

Retama typically reaches 4.6–6.1 m. Final size depends on soil quality and available root space. Allow adequate spacing at planting — most plants reach their full spread within 5–10 years.
How much sun does Retama need?

Retama grows best in full sun. Planting in the wrong light level is the single most common cause of poor performance. Check the aspect of your site before choosing a position.
Is Retama suitable for a small garden?

Retama can reach a significant size and is better suited to larger gardens where root and canopy spread are not a constraint. For smaller spaces, consider a more compact alternative in the same genus or a dwarf cultivar if one is available.
Does Retama attract wildlife?

Retama is known to attract bees, birds. For maximum benefit, avoid deadheading all flowers — seed heads and spent blooms are often as valuable to wildlife as the flowers themselves.

What Retama Symbolises

generous
abundant
connecting
lively