Skip to content
Choose

Bearded dragon: lifespan, size, diet and care

Lives10–15 years
Lives bestwarm: a basking spot at 38–42 °C (100–108 °F)
Spacea big terrarium, with a UVB tube about half its length
Foodinsects no bigger than its mouth, plus greens; adults about 60% greens. In the morning
Adult weight283 g (10 oz) to 510 g (1.1 lb)
What few people know

Without UVB it gets sick: the tube goes inside the terrarium, because glass blocks UVB.

Take the quiz: is it right for you?

How big it is

An adult is up to 61 cm (24 in) long.

All the pets next to a person

Before it arrives

  • A vivarium at least 120 × 60 × 60 cm (48 × 24 × 24 in; long, high, wide) for one adult, ventilated and secure
  • A guarded heat lamp with a thermostat: basking spot at 38–42 °C (100–108 °F), cool end at 22–26 °C (72–79 °F), and two thermometers
  • A high-output UVB tube (10–12%) up to half the vivarium's length, fitted inside (glass blocks UVB), and a 12-hour timer
  • A heater that gives no light for the night, if the room drops below 20–22 °C (68–72 °F)
  • A hide at each end, plus rocks and sturdy branches to climb
  • A safe floor: rough tiles or slate, or reptile carpet (paper towels for babies); no gravel, corncob or cat litter
  • A large shallow water dish, live insects, leafy greens and calcium powder
  • Set up and run the vivarium for at least a week before it arrives

Its home: temperature and light

Basking spot
38–42 °C (100–108 °F)
Cool side
22–26 °C (72–79 °F)
At night
20–22 °C (68–72 °F)
Humidity
30–40%
Light
12 hours a day
UVB lamp
needed

What it eats and how often

insects no bigger than its mouth, plus greens; adults about 60% greens. In the morning

  • Babies: every day, 2–3 meals a day
  • Juveniles: every day, 1 meal a day
  • Adults: every day, 1 meal a day

In the morning. When young, about 65% insects and 35% greens; when grown (over 30 cm, about 12 in), about 40% insects and 60% greens. Insects no bigger than its mouth, that is, no longer than the space between its eyes; for adults 3–4 times a week. Mixed leafy greens (dandelion, arugula, watercress), very little fruit, no spinach. Remove leftovers every day.

Vaccines and checkups

None: reptiles don't need vaccines.

A checkup at the vet every year. With a reptile vet.

The care calendar

What to do, from the most frequent to the least.

  • every dayGreens and insectsFresh greens every day, in the morning; dusted insects: twice a day for babies, 3–4 times a week for adults.
  • every dayFresh waterA large, shallow dish of clean water, changed every day: it drinks little, but needs it there.
  • every weekMultivitamin on the foodCalcium on the insects every day, the multivitamin once a week.
  • every monthFull clean of the terrariumRemove droppings as you see them.
  • every 6 monthsUVB lampIt still gives light after the UVB has run out: replace it when the brand says (fluorescent tubes usually every 6 months).
  • every yearYearly check-upWith a reptile vet.

Call the vet right away if…

If you see one of these signs, call your vet now: don’t wait for it to pass.

  • Twitching, swollen legs or face, or trouble walking or climbing
  • Loses weight, even during brumation
  • Poor appetite outside of brumation
  • Brings up food after eating
  • Diarrhea or no droppings, together with weight loss

Ate something dangerous? What to do now

Frequently asked questions

How long does a bearded dragon live?

Usually 10–15 years.

How big is a bearded dragon?

An adult is up to 61 cm (24 in) long.

How much does a bearded dragon weigh?

An adult usually weighs 283 g (10 oz) to 510 g (1.1 lb).

What does a bearded dragon eat, and how often?

Insects no bigger than its mouth, plus greens; adults about 60% greens. In the morning. In the morning. When young, about 65% insects and 35% greens; when grown (over 30 cm, about 12 in), about 40% insects and 60% greens. Insects no bigger than its mouth, that is, no longer than the space between its eyes; for adults 3–4 times a week. Mixed leafy greens (dandelion, arugula, watercress), very little fruit, no spinach. Remove leftovers every day. Babies: every day, 2–3 meals a day; juveniles: every day, 1 meal a day; adults: every day, 1 meal a day.

Does a bearded dragon need vaccines?

None: reptiles don't need vaccines.

When should a bearded dragon see a vet right away?

Right away if you see one of these signs: twitching, swollen legs or face, or trouble walking or climbing; loses weight, even during brumation; poor appetite outside of brumation. The others are above, in “Call the vet right away if…”.

How old is a bearded dragon in human years?

There’s no serious human-years chart for a bearded dragon: the ones online don’t cite sources. What counts is where it is in its life: its senior years start at about 7.5 to 11.3 years old.

Tools for your bearded dragon

Always ask your vet: this site helps you understand, it doesn’t replace a checkup.

Sources