Sulcata Tortoise Care Guide
Before you read further: the reality check
Sulcata tortoises are sold widely as hatchlings at $50-150 each. They're palm-sized, charming, and apparently low-maintenance. They are not.
An adult sulcata digs burrows large enough to fit an adult human. They eat enormous quantities of grass and require constant access to it. They need temperatures of 75-95°F most of the time and freeze to death in cold weather. They live 70-100+ years.
State rescues and the American Tortoise Rescue receive surrendered adult sulcatas constantly. The problem is so widespread that some rescues no longer take them — they're already full.
If you can genuinely commit to adult housing for the life of the animal, sulcatas are wonderful. If you can't, this is the wrong species. Russian tortoises are a better match for most keepers.
Size
Adult sulcatas: 18-30 inches shell length, 70-100+ pounds. Males generally larger than females. Hatchlings are around 1.5-2 inches and weigh 50-100 grams. Growth is rapid for the first 10 years, slowing afterward but never stopping entirely.
Lifespan
70-100+ years. Documented over 100 in some cases. Plan for the animal to outlive you. Identify a successor — and back them up.
Adult housing requirements
The honest minimum for an adult sulcata:
- Warm climate (Arizona, Texas, Florida, Southern California, etc.): A predator-proof outdoor pen of at least 100 square feet, with a heated insulated shelter for cool nights, abundant grazing area, dig-proof walls (buried 12+ inches), and shade structures. 400+ square feet is preferred.
- Cold climate (most of the US in winter): A heated indoor enclosure of at least 200 square feet (often built as a heated room or a converted shed), PLUS outdoor access in warm months. Indoor enclosures must include UVB across the entire space — they're too large for one bulb to cover.
Hatchling and juvenile indoor housing: tortoise table at minimum 4 ft × 2 ft, expanding rapidly. The animal will outgrow any "starter" setup within months.
Temperature requirements
- Day: 80-95°F (27-35°C); basking 95-100°F
- Night: 70-80°F minimum (never below 60°F for any extended period)
- Critical: do not allow temperatures below 50°F. Sulcatas do not brumate; cold exposure causes respiratory infections and death.
UVB
Required, year-round. Outdoor animals get unfiltered sunlight which is ideal. Indoor enclosures need strong T5 HO UVB across the entire space — multiple bulbs for large enclosures. Inadequate UVB causes severe shell pyramiding and metabolic bone disease.
Diet
Sulcatas are grazers. Diet should be 80%+ grasses and edible weeds, with leafy greens as a supplement. No fruit. No pellet diets. No vegetables as a regular component. Sulcatas evolved on the African savanna eating grass — their digestive system is specifically adapted for high-fiber, low-protein grass.
Good staples: Bermuda grass, orchard grass, timothy hay, grass hay, dandelion (whole plant), plantain, clover, mulberry leaves, grape leaves, hibiscus, opuntia cactus (pads).
Greens (occasional): Collard, mustard, turnip greens.
Never: Fruit (causes parasitic overgrowth and diarrhea), commercial tortoise pellets (too high protein — causes pyramiding and renal damage), spinach as staple, dog or cat food.
Provide a cuttlebone for calcium self-supplementation. The diet should be available constantly — sulcatas graze throughout the day.
Common health problems
- Shell pyramiding: Raised pyramidal scutes from chronic dehydration, inadequate humidity in hatchlings, too-high protein diet, or insufficient UVB. Permanent once formed.
- Respiratory infection: From cold or damp conditions. Sulcatas are tropical and intolerant of cold/wet.
- Bladder stones: From dehydration or high-protein diet. Common in poorly-managed adults.
- Foot/leg injuries from running surfaces: Concrete is rough on tortoise feet over time.
- Frostbite/cold death: Failures of heated outdoor shelter in winter.
Common sulcata mistakes
- Buying without adult housing plan. The #1 reason sulcatas are surrendered.
- Pellet-and-fruit diet. Causes pyramiding and kidney problems. Grass.
- Cold winters indoors without heat. Lethal.
- Outdoor housing without predator-proofing. Adult sulcatas are large enough to deter most predators, but hatchlings and juveniles are vulnerable to dogs, raccoons, and birds of prey.
- Cohabitation in inadequate space. Males fight, sometimes fatally. Females can coexist in genuinely large enclosures.
- Underestimating burrowing. Adult sulcatas dig burrows 10+ feet long and 3+ feet deep. They will tunnel under fences without buried wire mesh.
Consider adoption
If you can provide adult sulcata housing, please consider adopting from a rescue. Adult sulcatas are widely available through rescues at modest fees — and adopting an adult means you know exactly what you're committing to, with no growth surprises. American Tortoise Rescue, state-level reptile rescues, and Petfinder are starting points.
Related guides
- Russian tortoise care — better-fit alternative for most keepers
- All turtle and tortoise guides