Desert iguana (Dipsosaurus dorsalis)

Short answers

Desert iguana: How big does the enclosure need to be?

120×60×60 cm for one adult animal; a group of one male plus two females from ~160×80×80 cm.

Desert iguana: What temperature does it need?

Daytime 32–38 °C, basking spot 45–50 °C (high basking spot), at night 18–22 °C.

Desert iguana: Does it need UVB lighting?

UVB: UVB essential, high (a desert sun species, Ferguson zone 4, UV index 5–7).

Desert iguana: How long do they live?

Life expectancy: 10–15+ years.

Desert iguana: Is it suitable for beginners?

Rather not – it is considered an intermediate species (difficulty: Intermediate).

Climate

Daytime temperature

32–38 °C

Night temperature

18–22 °C

Basking spot

45–50 °C (high basking spot)

Humidity

low, 30–50 % (briefly higher in the morning)

UVB

UVB essential, high (a desert sun species, Ferguson zone 4, UV index 5–7)

Enclosure

Minimum size

120×60×60 cm for one adult animal; a group of one male plus two females from ~160×80×80 cm

Substrate

A deep, diggable desert sand or sand-loam mix, with stones and caves

Feeding

Food

Mostly plant-based (flowers, leaves, herbs – in the wild mainly creosote bush), few insects

Feeding interval

adults plant food daily, insects occasionally

Key facts

Adult size

approx. 40 cm total length including the tail (SVL up to ~15 cm)

Life expectancy

10–15+ years

Origin

The south-west of the USA and north-west of Mexico (the Sonoran and Mojave Deserts)

Protection status

Not listed under CITES (wild-caught animals are legally tradable too); no special protected status

Brumation

A winter rest or brumation is needed: 6–12 weeks at 10–15 °C (depending on age)

Cohabitation

Keeping singly is the simplest option. One male can additionally be kept with one or two females, but never with a second male: desert iguanas are strongly territorial, only one male per enclosure works, otherwise fights over basking spot and territory follow.

Notes

An extreme heat and dryness specialist, still active long after other lizards have sought shelter (retreats only at a body temperature of around 45 °C). It needs very strong lighting and warmth and deep digging opportunities. Conditions that are too damp or cool make it ill; an annual winter rest matters for health and life expectancy.

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Related species

• Anegada ground iguana (Cyclura pinguis) – Expert
• Grand Cayman blue iguana (Cyclura lewisi) – Expert
• Common chuckwalla (Sauromalus ater) – Intermediate
• Cape spiny-tailed iguana (Ctenosaura hemilopha) – Intermediate
• Fiji banded iguana (Brachylophus fasciatus) – Expert
• Green iguana (Iguana iguana) – Intermediate to expert
• Guatemalan spiny-tailed iguana (Ctenosaura palearis) – Expert
• Helmeted iguana (Corytophanes cristatus) – Expert

All species in the care wiki →

What you need to start

To keep Desert iguana (Dipsosaurus dorsalis) you typically need: a suitable enclosure (120×60×60 cm for one adult animal; a group of one male plus two females from ~160×80×80 cm), substrate (A deep, diggable desert sand or sand-loam mix, with stones and caves), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.