Parson’s Chameleon (Calumma parsonii) Care Sheet
The Parson’s Chameleon (Calumma parsonii) is an exceptionally large, long-lived chameleon endemic to the humid forests of eastern Madagascar. It is widely regarded as one of the largest living chameleon species and is among the most impressive reptiles maintained by specialist chameleon keepers.
Parson’s Chameleons differ significantly from more commonly kept species such as Panther or Veiled Chameleons.
They require:
- Extremely spacious arboreal housing
- Moderate rather than excessively high temperatures
- A pronounced nighttime temperature drop
- Very high levels of hydration
- High nighttime humidity combined with excellent ventilation
- Strong visible-spectrum lighting
- Appropriate UVB
- Large quantities of varied live prey
- Extensive mature planting
- Minimal unnecessary handling
- Careful seasonal management
Their reproductive biology is particularly unusual. Females can produce large clutches, but egg incubation may take well over a year and requires careful seasonal management.
Parson’s Chameleons also mature slowly and represent a very long-term commitment.
This species is best considered:
advanced specialist chameleon husbandry.
Quick facts
Scientific name: Calumma parsonii
Common name: Parson’s Chameleon
Family: Chamaeleonidae
Native distribution: Eastern Madagascar
Lifestyle: Arboreal
Activity: Diurnal
Adult size: Very large; males can approach approximately 60–70 cm (24–28 in) total length, although size varies between forms and individuals
Lifespan: Commonly 10–15+ years with excellent care; potentially considerably longer
Diet: Predominantly live invertebrates, with occasional opportunistic vertebrate prey in nature
Day ambient temperature: Approximately 22–26°C (72–79°F)
Warm upper zone: Approximately 25–27°C (77–81°F)
Basking temperature: Approximately 28–31°C (82–88°F)
Cool area: Approximately 20–23°C (68–73°F)
Night temperature: Approximately 15–19°C (59–66°F), with appropriate seasonal variation
Day humidity: Approximately 50–70%
Night humidity: Approximately 80–100% with excellent ventilation
UVB: Essential
Suggested basking UVI: Approximately 2–3, with extensive lower-UV and shaded areas
Adult enclosure: At least approximately 180 × 90 × 180 cm (6 × 3 × 6 ft) for one adult; 240 × 120 × 200 cm (8 × 4 × 6½ ft) or larger strongly preferred
Housing: Individual housing strongly recommended
Reproduction: Egg-laying
Handling: Minimal
Experience level: Advanced
Taxonomy
The accepted scientific name is:
Calumma parsonii
The species belongs to:
Family: Chamaeleonidae
Genus: Calumma
Older literature may use:
Chamaeleo parsonii**.**
Recognised subspecies
Two subspecies are currently recognised:
Calumma parsonii parsonii
and:
Calumma parsonii cristifer**.**
They should not automatically be treated as interchangeable.
Locality and form
Within C. p. parsonii, keepers may encounter animals described by geographic or colour forms.
These include names associated with areas such as:
- Orange Eye
- Yellow Lip
- Yellow Giant
- Green Giant
These hobby names should not be confused with:
formally recognised subspecies.
Preserve provenance
Where locality or lineage information is genuinely known, it should be:
accurately recorded and preserved.
Do not assign locality based solely on colour.
Natural distribution
Parson’s Chameleons are endemic to:
Madagascar.
They occur primarily through the humid eastern portion of the island.
Elevation
Populations occur across a broad elevational range, from relatively low elevations into highland forest approaching approximately:
1,600 m (5,250 ft).
This helps explain why temperature requirements can vary between populations.
Natural habitat
Habitats include:
- Humid rainforest
- Montane rainforest
- Mature secondary forest
- Forest edge
- Heavily vegetated disturbed habitat
Arboreal lifestyle
Parson’s Chameleons are strongly:
arboreal.
They spend most of their lives among:
- Trees
- Large shrubs
- Branches
- Dense foliage
Canopy use
Wild animals may occupy substantial trees and can remain within a relatively small arboreal territory for long periods.
Basking behaviour
Individuals bask for limited periods before returning to:
shade.
This is important.
A Parson’s Chameleon should never be forced to remain under:
- Heat
- Bright light
- UVB
without extensive shaded alternatives.
Adult size
Parson’s Chameleons are exceptionally large.
Large males may approach approximately:
60–70 cm (24–28 in)
total length.
Body build
Compared with many chameleons, adults are:
- Heavy-bodied
- Powerful
- Large-headed
- Slow-moving
Sexual dimorphism
Males are generally:
- Larger
- More robust
- More heavily ornamented
than females.
Male rostral appendages
Adult males develop prominent paired:
rostral processes.
Female appearance
Females generally lack the dramatic paired rostral structures of mature males and tend to be:
smaller and less heavily built.
Colouration
Colour varies with:
- Sex
- Locality
- Age
- Temperature
- Behaviour
- Reproductive state
Behaviour
Parson’s Chameleons are generally:
slow, deliberate and observant.
Temperament
Many captive-bred individuals become relatively tolerant of routine keeper activity.
This does not make them:
handling pets.
Stress
Chameleons frequently express stress subtly.
Possible indicators include:
- Persistent hiding
- Defensive colouration
- Reduced feeding
- Repeated escape behaviour
- Abnormal positioning
Handling
Handling should be:
minimal and voluntary wherever possible.
Never pull a chameleon from a branch
A chameleon gripping a branch should not be forcibly pulled away.
This can injure:
- Toes
- Feet
- Limbs
Voluntary transfer
Encourage the animal to:
walk onto a branch or hand voluntarily
when movement is necessary.
Enclosure philosophy
A Parson’s Chameleon enclosure should function as:
a large living tree habitat rather than a conventional reptile tank.
Minimum adult enclosure
For one adult, provide at least approximately:
180 × 90 × 180 cm (6 × 3 × 6 ft).
Preferred enclosure
Approximately:
240 × 120 × 200 cm (8 × 4 × 6½ ft)
or larger is strongly preferred.
Room-sized housing
Large males particularly benefit from:
room-sized planted enclosures.
Why space matters
Large enclosures allow:
- Natural movement
- Thermal choice
- Humidity gradients
- UV gradients
- Multiple drinking locations
- Visual security
Enclosure type
Suitable options include:
- Large custom screen enclosures
- Hybrid screen/PVC enclosures
- Walk-in planted enclosures
- Dedicated chameleon rooms
Screen versus solid housing
Fully screened housing can provide excellent ventilation but may make maintaining:
- Humidity
- Temperature
difficult in Ireland and the UK.
Hybrid enclosures are often more practical.
Ventilation
Excellent air exchange is:
essential.
High humidity does not mean stagnant air
The correct environment combines:
- High nighttime humidity
- Cool nighttime temperatures
- Strong ventilation
Furnishings
Provide substantial:
- Natural branches
- Vines
- Mature live plants
- Horizontal pathways
- Diagonal pathways
Branch strength
Every primary branch must safely support:
the full weight of an adult.
Branch diameter
Provide several diameters so the animal can exercise:
- Feet
- Toes
- Grip
naturally.
Branch orientation
Create interconnected:
- Horizontal
- Diagonal
- Vertical
routes.
Avoid dead ends
The animal should be able to move through much of the enclosure without repeatedly reaching:
dead-end branches.
Basking branch
Provide a broad, secure basking branch beneath:
- Heat
- UVB
Foliage
Dense vegetation is essential.
Live plants
Suitable robust plants may include:
- Ficus
- Schefflera
- Pothos
- Hibiscus
- Large philodendron-type plants where confirmed safe
Plant safety
All plants must be:
- Non-toxic
- Pesticide-free
- Securely planted
Visual cover
A Parson’s Chameleon should be able to move completely out of:
direct keeper view.
Drainage
Because substantial quantities of water are required, drainage is:
critical.
Drainage system
Large enclosures should incorporate:
- Drainage trays
- Bulkhead drains
- Plumbed drainage
where possible.
Standing water
Do not allow water to accumulate around the enclosure floor.
Temperature philosophy
Parson’s Chameleons should not be kept excessively hot.
This is one of the most important differences between them and some commonly kept chameleons.
Day ambient temperature
Maintain approximately:
22–26°C (72–79°F).
Warm upper area
The warmer upper enclosure can reach approximately:
25–27°C (77–81°F).
Basking temperature
Provide a gentle basking area around:
28–31°C (82–88°F).
Avoid extreme basking heat
Basking temperatures approaching:
35–40°C (95–104°F)
are unnecessarily high for this species.
Cool area
Provide cooler shaded sections around:
20–23°C (68–73°F).
Night temperature
Allow temperatures to fall substantially at night.
A useful target is approximately:
15–19°C (59–66°F).
Night cooling
Nighttime cooling is:
extremely important.
Constant warmth
Maintaining Parson’s Chameleons at approximately:
24–26°C (75–79°F) throughout the night
is inappropriate.
Seasonal temperature
Animals from different elevations and localities may experience somewhat different seasonal temperature profiles.
Summer overheating
Heatwaves can be a serious danger.
Warning temperature
Sustained enclosure temperatures above approximately:
28–30°C (82–86°F)
without access to cooler refuges should be treated seriously.
Cooling strategies
During warm weather:
- Increase room ventilation
- Use air conditioning where necessary
- Reduce unnecessary heat-producing equipment
- Mist appropriately
- Maintain cool shaded areas
Heating
Use overhead heat.
Basking lamp
A relatively low-output:
halogen flood
can provide gentle basking.
Broad heating
Heat should cover a useful portion of the body rather than producing:
one tiny intensely hot point.
Thermostat
Control heating appropriately.
Temperature monitoring
Use digital thermometers at:
- Basking level
- Mid-level
- Lower shaded level
UVB
UVB is an important component of long-term husbandry.
Suggested UVI
Provide approximately:
UVI 2–3
at the principal exposed basking branch.
UV gradient
Provide:
- UVI 1–2 across partially exposed branches
- UVI below 1 in foliage
- Near-zero UV in deep shade
Why moderate UV
Parson’s Chameleons bask naturally but also spend substantial periods:
within shaded forest vegetation.
UVB lamp
A quality:
linear T5 UVB lamp
is generally appropriate.
Lamp output
Required lamp strength depends upon:
- Distance
- Mesh
- Reflector
- Lamp model
- Enclosure design
What this means in practice
Do not choose UVB solely because a lamp says:
“5%” or “10%”.
Instead, design the enclosure so the animal actually receives:
the intended UVI at its basking branch.
UV meter
Measurement with a suitable UV meter is strongly recommended.
Visible lighting
Provide strong daylight-spectrum visible lighting.
Why brightness matters
Chameleons use light for:
- Vision
- Behaviour
- Circadian rhythm
- Feeding
- Thermoregulation
Plant lighting
High-quality LED plant lighting can be useful alongside:
- UVB
- Heat
Photoperiod
Approximately:
11–13 hours
of daylight can be used depending on season.
Seasonal photoperiod
Modest seasonal adjustment is appropriate.
Night lighting
Provide:
complete darkness.
Humidity
Parson’s Chameleons come from humid environments but should not remain constantly wet.
Day humidity
Allow daytime humidity to fall approximately toward:
50–70%.
Night humidity
Humidity can rise substantially overnight toward:
80–100%.
Humidity cycle
A natural cycle is preferable to maintaining one constant percentage.
Ideal pattern
A useful pattern is:
cool and humid at night → warmer and progressively drier during the day.
Ventilation
High nighttime humidity must be accompanied by:
excellent airflow.
Hydration
Parson’s Chameleons require exceptionally good access to:
drinking water.
Misting
Use long misting sessions rather than relying exclusively on brief sprays.
Morning misting
A substantial morning misting session can:
- Coat foliage
- Encourage drinking
- Increase humidity
Evening misting
Evening or nighttime misting can help reproduce:
cool humid forest conditions.
Automatic misting
A high-quality automatic misting system is extremely useful.
Dripper
A slow dripper can provide additional daytime hydration.
Drinking behaviour
Some individuals take time before beginning to drink.
Do not assume a chameleon has hydrated simply because:
the enclosure was misted for thirty seconds.
Water quality
Use clean, safe water.
Water bowl
Do not rely on a conventional water bowl as the main hydration source.
Drainage
Heavy misting makes effective drainage essential.
Dehydration signs
Possible signs include:
- Sunken eyes
- Reduced activity
- Thick urates
- Poor skin quality
- Weight loss
Diet
Parson’s Chameleons are primarily:
insectivorous predators.
Natural diet
Wild prey includes a wide range of:
- Insects
- Other arthropods
Large individuals may opportunistically take:
- Small vertebrates
Captive diet
A varied invertebrate diet should remain the foundation.
Suitable staple feeders
Offer:
- Locusts
- Crickets
- Dubia or other suitable roaches
- Silkworms
- Black soldier fly larvae
Additional feeders
Useful variety includes:
- Hornworms
- Stick insects where safely cultured
- Appropriate beetle larvae
- Moths
- Flies
- Snails where safely captive produced
Large prey
Adult Parson’s Chameleons can consume substantial prey, but prey should still be:
appropriately sized.
Vertebrate prey
Routine feeding of:
- Mice
- Lizards
- Other vertebrates
is unnecessary.
Why avoid routine vertebrates
They can contribute excessive:
- Calories
- Fat
- Protein
and provide little advantage over a well-designed invertebrate diet.
Adult feeding
Healthy adults commonly do well when fed approximately:
3–4 times weekly.
Juveniles
Growing juveniles should receive appropriately sized food:
daily or almost daily.
Females
Reproductive females may require adjustment according to:
- Body condition
- Follicular development
- Egg production
Avoid obesity
Parson’s Chameleons can become overweight.
Body-condition monitoring
Regularly record:
body weight.
Gut loading
Feeders should be:
properly gut loaded.
Calcium
Dust feeders appropriately with:
calcium.
Multivitamin
Provide an appropriate reptile multivitamin conservatively.
Vitamin D3
Dietary D3 should be balanced against:
measured UVB exposure.
Over-supplementation
Avoid indiscriminate heavy supplementation.
Social housing
Parson’s Chameleons should generally be housed:
individually.
Adult males
Adult males can be highly territorial.
Visual stress
Even seeing another chameleon constantly may cause:
chronic stress.
Visual barriers
Separate enclosures should prevent continuous visual contact where animals react adversely.
Male and female housing
Permanent pair housing is not recommended.
Breeding
Introduce animals specifically for breeding and monitor behaviour carefully.
Female receptivity
A female’s behaviour and colour can indicate whether she is:
- Receptive
- Non-receptive
- Gravid
Aggression
Separate immediately if there is:
- Persistent gaping
- Lunging
- Biting
- Chasing
- Extreme stress colouration
Reproduction
Parson’s Chameleons are:
oviparous — egg-laying.
Slow reproductive biology
Their reproductive cycle is unusually slow compared with many familiar chameleons.
Sexual maturity
Parson’s Chameleons should not be rushed into breeding.
They may require several years to reach full reproductive maturity.
Female condition
Females must be:
- Fully mature
- Well hydrated
- In excellent body condition
- Properly supplemented
before breeding.
Gravid female
A gravid female may become:
- Heavier
- More rounded
- Restless
- Increasingly interested in the enclosure floor
Nesting
Females excavate substantial nest tunnels.
Nesting depth
Provide approximately:
40–60 cm (16–24 in)
of suitable laying substrate.
Large nesting container
A large mature female should have access to a nesting area substantial enough to:
enter completely and excavate naturally.
Nesting substrate
A suitable mixture may contain:
- Organic topsoil
- Sand
that holds a tunnel without collapsing.
Moisture
The substrate should be:
slightly moist, not wet.
Privacy
A female preparing to lay should be given:
maximum privacy.
Disturbance during nesting
Repeated observation or digging up the nesting area may cause a female to:
abandon the site.
Clutch size
Females can produce substantial clutches.
Approximately:
20–50 eggs
may occur, although clutch size varies with:
- Female size
- Age
- Condition
- Subspecies
Post-laying care
After laying, provide:
- Immediate hydration
- Appropriate food
- Calcium
- Low-stress recovery
Egg handling
If eggs are removed:
- Mark their upper surface
- Maintain orientation
- Handle gently
Incubation
Parson’s Chameleon incubation is:
exceptionally long and technically demanding.
Incubation duration
Eggs commonly require:
well over one year
to hatch.
Successful documented incubation
Professional zoo breeding has documented successful incubation lasting approximately:
569 days.
That is around:
18½ months.
Why incubation is difficult
Embryonic development is influenced by seasonal changes in:
- Temperature
- Moisture
Constant-temperature incubation
Simply placing eggs at one warm temperature for the entire incubation period is:
not considered ideal.
Seasonal incubation
Successful specialist protocols incorporate:
- Warmer phases
- Cooler seasonal phases
- Controlled moisture changes
that reflect conditions in eastern Madagascar.
General incubation temperature
A broad working range may involve approximately:
18–24°C (64–75°F)
across different phases of the incubation cycle.
Cool phase
During the cooler seasonal period, incubation temperatures may be deliberately reduced.
Warm phase
Temperatures are subsequently allowed to rise gradually as development progresses.
Do not improvise
Because successful incubation is unusually complex, breeders should follow:
species-specific proven protocols
rather than generic chameleon incubation instructions.
Incubation moisture
Medium should remain:
stable and appropriately moist
without saturating the eggs.
Egg monitoring
Monitor:
- Condensation
- Egg appearance
- Medium moisture
- Incubator temperatures
without excessive disturbance.
Hatchlings
Hatchlings are relatively large compared with many chameleon species but remain delicate.
Hatchling housing
Provide:
- Fine branches
- Dense live foliage
- Excellent ventilation
- Gentle basking
- UVB
- Frequent hydration
Hatchling enclosure
A young individual can initially be housed in approximately:
60 × 45 × 90 cm (2 × 1½ × 3 ft)
with regular upgrades as it grows.
Juvenile space
Do not keep rapidly growing juveniles in cramped starter enclosures for extended periods.
Hatchling temperature
Maintain daytime temperatures around:
21–24°C (70–75°F).
Hatchling warm area
Provide approximately:
25–27°C (77–81°F).
Hatchling night temperature
Allow nighttime cooling toward:
16–19°C (61–66°F).
Hatchling UVB
Provide approximately:
UVI 1–2
at exposed upper perches.
Hatchling humidity
Maintain good hydration with:
- High nighttime humidity
- Regular misting
- Excellent airflow
Hatchling diet
Offer:
- Small crickets
- Small roach nymphs
- Appropriate flies
- Small black soldier fly larvae
- Other suitable tiny invertebrates
Hatchling feeding
Feed:
daily.
Hatchling supplementation
Provide:
- Gut-loaded feeders
- Appropriate calcium
- Conservative multivitamin supplementation
- Correct UVB
Juvenile social housing
Individual rearing makes it easier to monitor:
- Food intake
- Growth
- Hydration
- Health
Quarantine
All newly acquired animals should undergo quarantine.
At least:
90 days
is a sensible minimum.
Quarantine priorities
Monitor:
- Weight
- Feeding
- Hydration
- Faeces
- Respiratory health
Faecal testing
Faecal parasite testing is advisable, particularly for:
- Imported animals
- Animals of uncertain history
Captive-bred preference
Documented captive-bred animals should be:
strongly preferred.
Common health concerns
Potential problems include:
- Dehydration
- Chronic overheating
- Metabolic bone disease
- Nutritional imbalance
- Obesity
- Parasites
- Respiratory disease
- Eye problems
- Burns
- Foot and grip problems
- Reproductive disease
Dehydration
Parson’s Chameleons have substantial hydration requirements.
Possible signs include:
- Sunken eyes
- Thick urates
- Poor skin elasticity
- Lethargy
Overheating
Possible signs include:
- Persistent gaping
- Restlessness
- Seeking the enclosure floor
- Weakness
- Collapse
Metabolic bone disease
Possible signs include:
- Weak grip
- Tremors
- Limb deformity
- Soft jaw
- Fractures
MBD prevention
Provide:
- Correct UVB
- Calcium
- Good feeder nutrition
- Appropriate temperatures
Obesity
Avoid excessive feeding of large high-energy prey.
Respiratory disease
Risk increases with:
- Stagnant air
- Incorrect temperatures
- Persistently wet conditions
Respiratory warning signs
Watch for:
- Wheezing
- Clicking
- Nasal discharge
- Excess mucus
- Abnormal open-mouth breathing
Eye health
Healthy chameleon eyes should remain:
- Full
- Alert
- Mobile
during the day.
Persistent eye closure
A chameleon repeatedly closing its eyes during daylight should be considered:
unwell until proven otherwise.
Foot health
Provide branches of varied diameters to prevent constant pressure on identical areas of:
- Feet
- Toes
Burns
Prevent direct access to:
- Heat lamps
- Hot fixtures
- Heating elements
Reproductive disease
Females may experience:
- Follicular problems
- Egg retention
- Dystocia
- Severe calcium depletion
Veterinary red flags
Seek specialist veterinary attention for:
- Persistent anorexia
- Significant weight loss
- Sunken eyes
- Weak grip
- Tremors
- Daytime eye closure
- Abnormal breathing
- Serious injury
- Suspected egg retention
Cleaning
Remove:
- Faeces
- Dead feeders
- Spoiled organic matter
promptly.
Plant maintenance
Remove:
- Rotting leaves
- Dead branches
- Mould
Drainage maintenance
Regularly check that heavy misting has not caused:
- Blocked drains
- Standing water
- Waterlogged substrate
Seasonal husbandry
Seasonality is particularly important for Parson’s Chameleons.
Temperature seasonality
Provide modest seasonal variation in:
- Day temperatures
- Night temperatures
Rainfall seasonality
Misting frequency and duration can also vary through the year.
Feeding seasonality
Food availability can be adjusted modestly to reflect:
- Activity
- Temperature
- Reproductive cycle
Do not brumate
Parson’s Chameleons should not undergo:
temperate reptile brumation.
Cool season
A cooler seasonal period is very different from:
prolonged cold dormancy.
Conservation status
Parson’s Chameleon is currently regarded as:
Near Threatened
with a declining population trend.
Conservation concerns
Threats include:
- Forest loss
- Habitat degradation
- Agricultural expansion
- Collection for international trade
CITES
Parson’s Chameleon is regulated under:
CITES Appendix II.
What Appendix II means
International trade is permitted only where:
- Legal
- Properly documented
- Compatible with conservation requirements
Madagascar exports
Wildlife exports from Madagascar are subject to:
- National restrictions
- CITES requirements
- Export quotas or suspensions where applicable
Captive-bred sourcing
For private keepers, documented:
captive-bred animals are strongly preferable.
Provenance
Retain:
- Breeder information
- Purchase receipt
- Hatch date
- Parentage
- Locality/form information where genuinely known
- CITES paperwork
- Import/export documentation where applicable
Conservation breeding
Because this is a long-lived, slow-maturing and relatively difficult species to reproduce, carefully managed captive breeding has substantial value.
Preserve lines
Known subspecies and documented locality lines should not be deliberately mixed without:
clear records and a justified breeding objective.
Never release captive animals
Never release captive chameleons.
Common husbandry mistakes
Common mistakes include:
- Buying a juvenile without planning for enormous adult housing
- Using an enclosure that is too small
- Providing weak branches
- Providing insufficient foliage
- Keeping the enclosure too hot
- Providing excessively hot basking temperatures
- Failing to provide nighttime cooling
- Keeping nights warm and dry
- Providing insufficient drinking opportunities
- Using brief misting that does not allow adequate drinking
- Keeping the enclosure permanently wet
- Providing poor ventilation
- Providing insufficient UVB
- Providing excessive UVB without shade
- Failing to measure UV exposure
- Feeding only crickets
- Feeding routine vertebrate prey
- Overfeeding adults
- Keeping animals together permanently
- Allowing constant visual contact between territorial animals
- Providing females with inadequate nesting depth
- Disturbing females while nesting
- Treating eggs like ordinary short-incubation chameleon eggs
- Incubating eggs constantly at high temperatures
- Failing to plan for an incubation period exceeding a year
- Failing to quarantine new animals
- Purchasing animals without clear provenance
Responsible ownership
Before obtaining a Parson’s Chameleon, ensure you can provide:
- Legally documented provenance
- At least approximately 180 × 90 × 180 cm (6 × 3 × 6 ft) adult housing
- Preferably 240 × 120 × 200 cm (8 × 4 × 6½ ft) or larger
- Heavy mature planting
- Strong interconnected branches
- Excellent drainage
- Excellent ventilation
- Day temperatures around 22–26°C (72–79°F)
- Gentle basking around 28–31°C (82–88°F)
- Cool shaded areas around 20–23°C (68–73°F)
- Nighttime cooling toward 15–19°C (59–66°F)
- High nighttime humidity
- Lower daytime humidity
- Long misting sessions
- Reliable drinking opportunities
- Strong visible-spectrum lighting
- Appropriate UVB
- UVI around 2–3 at exposed basking positions
- Extensive shaded UV retreats
- A varied live-invertebrate diet
- Proper gut loading
- Appropriate supplementation
- Individual housing
- Deep nesting facilities for females
- Long-term reproductive planning
- Specialist incubation facilities if breeding
- Regular weight monitoring
- Quarantine facilities
- Access to a chameleon-experienced veterinarian
- The ability to maintain the animal for potentially well over a decade
Summary
The Parson’s Chameleon (Calumma parsonii) is an enormous, long-lived forest chameleon endemic to eastern Madagascar.
Two subspecies are recognised:
Calumma parsonii parsonii
and:
Calumma parsonii cristifer**.**
Adults require exceptionally spacious arboreal housing.
For one adult, provide at least approximately:
180 × 90 × 180 cm (6 × 3 × 6 ft),
with:
240 × 120 × 200 cm (8 × 4 × 6½ ft)
or larger strongly preferred.
Maintain daytime temperatures around:
22–26°C (72–79°F)
with gentle basking around:
28–31°C (82–88°F).
Provide a substantial nighttime drop toward:
15–19°C (59–66°F).
Maintain daytime humidity around:
50–70%
with nighttime humidity rising toward:
80–100%
while maintaining excellent ventilation.
Provide appropriate UVB producing approximately:
UVI 2–3
at the principal exposed basking position, together with extensive shade.
Hydration is critical. Long misting sessions, excellent drainage and reliable drinking opportunities are fundamental husbandry requirements.
Feed a varied invertebrate diet based around:
- Locusts
- Crickets
- Roaches
- Silkworms
- Black soldier fly larvae
- Other appropriate invertebrates
with careful gut loading and supplementation.
House adults:
individually.
Breeding is an advanced undertaking. Females require deep nesting substrate and eggs may take:
well over a year to hatch.
Successful professional breeding has documented an incubation period of approximately:
569 days — around 18½ months.
Parson’s Chameleons are currently considered Near Threatened and are regulated under CITES Appendix II.
Their combination of enormous adult size, specialised climate, substantial hydration requirements, slow maturation and extraordinary reproductive biology makes Calumma parsonii one of the most demanding but remarkable chameleons maintained in specialist herpetoculture.
IMPORTANT INFORMATION:
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
Always check current legislation governing the acquisition, collection, import, transport, keeping, breeding or sale of reptiles in your jurisdiction.
If you have concerns about an animal’s health or care, consult a suitably experienced exotic or reptile veterinarian.
Information correct at the date of publication.
reptilecommunity.com | Revised: September 2026