Eastern diamondback rattlesnake (Crotalus adamanteus)
Snakes · Difficulty: Expert
Key facts and care guidance for Eastern diamondback rattlesnake (Crotalus adamanteus) (origin: Südost-USA von North Carolina über Florida bis Louisiana — Kiefernwald, Palmettoflächen, Sandhügel). Adult size around 150–200 cm (the largest rattlesnake). Life expectancy 15–20 years. The values below are carefully researched guidance.
Short answers
Eastern diamondback rattlesnake: How big does the enclosure need to be?
From 250×100×150 cm (minimum size per the 1997 expert report, rattlesnakes).
Eastern diamondback rattlesnake: What temperature does it need?
Daytime 26–31 °C, basking spot 34–37 °C, at night 20–23 °C.
Eastern diamondback rattlesnake: Does it need UVB lighting?
UVB: UVB recommended.
Eastern diamondback rattlesnake: How long do they live?
Life expectancy: 15–20 years.
Eastern diamondback rattlesnake: Is it suitable for beginners?
No – better suited to experienced keepers (difficulty: Expert).
Climate
- Daytime temperature
- 26–31 °C
- Night temperature
- 20–23 °C
- Basking spot
- 34–37 °C
- Humidity
- 50–65 %
- UVB
- UVB recommended
Enclosure
- Minimum size
- from 250×100×150 cm (minimum size per the 1997 expert report, rattlesnakes)
- Substrate
- Sand and soil with leaf litter, large hides
Feeding
- Food
- Frozen-thawed rats; larger animals take rabbits
- Feeding interval
- adults every 14–21 days
Key facts
- Adult size
- 150–200 cm (the largest rattlesnake)
- Life expectancy
- 15–20 years
- Origin
- Südost-USA von North Carolina über Florida bis Louisiana — Kiefernwald, Palmettoflächen, Sandhügel
- Protection status
- VENOMOUS – a dangerous animal; a permit or notification is required, varying by German state
- Brumation
- A cooler rest of 6–8 weeks
- Cohabitation
- Keep them singly. Snakes are solitary and do not seek company — a shared hide is competition for the best spot, not social behaviour. The concrete reason is the feeding accident: if two animals grab the same food item, one can swallow the other along with it. On top of that, once they are kept together you can no longer tell which animal has eaten and which is losing weight. For breeding, put them together under supervision and separate them again afterwards.
Notes
The heaviest rattlesnake and the one with the largest venom yield. It needs more humidity than the desert species. The space requirement and the danger are regularly underestimated.
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Related species
- Ridge-nosed rattlesnake (Crotalus willardi) – Expert
- Mojave rattlesnake (Crotalus scutulatus) – Expert
- Prairie rattlesnake (Crotalus viridis) – Expert
- Red diamond rattlesnake (Crotalus ruber) – Expert
- Neotropical rattlesnake (Crotalus durissus) – Expert
- Black-tailed rattlesnake (Crotalus molossus) – Expert
- Sidewinder (Crotalus cerastes) – Expert
- Western diamondback rattlesnake (Crotalus atrox) – Expert
What you need to start
To keep Eastern diamondback rattlesnake (Crotalus adamanteus) you typically need: a suitable enclosure (from 250×100×150 cm (minimum size per the 1997 expert report, rattlesnakes)), substrate (Sand and soil with leaf litter, large hides), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.
The complete, interactive care database is in the Reptoria app.
Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Eastern_diamondback_rattlesnake, https://animaldiversity.org/accounts/Crotalus_adamanteus/
All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).