Chilean Rose Tarantula Care Guide (Grammostola rosea)
The Chilean Rose Tarantula (Grammostola rosea) is one of the most widely kept tarantulas in the world. Its calm temperament, hardy constitution, and decades-long availability in the pet trade have made it the default starter tarantula for an entire generation of keepers. This guide covers everything you need to keep a Chilean Rose successfully.
Species Overview
- Scientific name: Grammostola rosea
- Common name: Chilean Rose Tarantula, Rose Hair Tarantula
- Adult leg span: 5–6 inches
- Lifespan: Females 15–20+ years; males 4–6 years
- Origin: Chile and western Argentina
- Type: Terrestrial, New World
- Difficulty: Beginner
The Chilean Rose was the most commonly sold tarantula in pet stores throughout the 1990s and 2000s, with most specimens being wild-caught imports. Today, captive-bred animals are increasingly available and are strongly preferred. Wild-caught individuals can be more unpredictable in temperament and may carry parasites or stress from collection and transport.
Enclosure
Chilean Roses are terrestrial and need floor space more than height. A standard adult enclosure is 12" × 12" × 10" or similar — wider than it is tall. Avoid excessively tall enclosures, as falls can be fatal to a heavy-bodied tarantula.
- Substrate depth: At least 4–6 inches for adults to allow burrowing. A mix of coconut fiber, peat moss, and topsoil works well.
- Hide: Provide one cork bark hide or similar retreat. Some individuals will use it; others will ignore it entirely.
- Ventilation: Cross-ventilation is important. Avoid fully sealed enclosures.
- Water dish: A shallow water dish should always be available for adults.
See our Best Tarantula Enclosures, Best Tarantula Substrate, and Best Tarantula Hides guides.
Temperature
Chilean Roses do well at normal room temperature — 68–80°F is ideal. They do not require supplemental heating in most homes. Avoid sustained temperatures above 85°F. As a species from the Atacama Desert and surrounding scrublands, they are highly tolerant of temperature fluctuation within the recommended range.
Humidity
Like most Grammostola species, the Chilean Rose does well in a mostly dry enclosure with access to a slight moisture gradient rather than a specific humidity percentage. Keep the enclosure dry overall, but overflow one corner of the water dish every couple of weeks to lightly moisten one area of the substrate. Always keep a fresh water dish available. Avoid consistently damp substrate, which promotes mold and bacterial growth. Good ventilation is generally more important than maintaining a specific humidity reading.
Feeding
The Chilean Rose is notorious for extended fasting periods — this is the species’ most misunderstood trait. Healthy adults have been known to refuse food for many months, and prolonged fasts are well documented in this species. Do not attempt to force-feed. Offer prey every 2 weeks and remove it if refused within 24 hours. Feed juveniles every 5–7 days and adults every 7–14 days when they are eating. Offer prey no larger than the tarantula’s abdomen.
- Spiderlings: Fruit flies, pinhead crickets
- Juveniles: Small crickets, small mealworms, small dubia roaches
- Adults: Crickets, dubia roaches, mealworms
Remove uneaten prey within 24 hours. Never feed during or immediately after a molt. See our Best Tarantula Feeding Tongs guide.
Water
Always provide a shallow water dish for adults and sub-adults. Use a dish shallow enough to allow easy access for drinking — bottle caps work for spiderlings, and a small reptile water dish is appropriate for adults. Refresh the water weekly or when soiled. See our Best Tarantula Water Dishes guide.
Handling
Grammostola rosea is one of the calmer tarantulas commonly kept in captivity, making it one of the more approachable species for new keepers. However, temperament varies significantly between individuals — some are reliably docile while others are more defensive. Always read body language before and during any interaction. Handle close to the ground and never over hard surfaces. As a New World species, it possesses urticating hairs on the abdomen that it may flick when stressed, causing skin and eye irritation.
Urticating Hairs
As a New World species, G. rosea relies primarily on urticating hairs as a defense mechanism rather than biting. A bald patch on the abdomen indicates the spider has been flicking hairs — a sign of stress. Reduce disturbance and handling frequency if this occurs. The hairs will grow back at the next molt.
Molting
Chilean Roses molt infrequently — adults may only molt once every 1–2 years, and extended fasting often precedes a molt by weeks or months. Before a molt, the spider will refuse food, become less active, and may flip onto its back. Do not disturb the spider during this period. Remove all live prey immediately when pre-molt signs appear. Leave the water dish in place so the spider has access to hydration throughout the process. After molting, wait at least 2 weeks before offering food to allow the new exoskeleton to fully harden. See our Tarantula Molting Guide for full details.
Lifespan
Female G. rosea commonly reach 15–20+ years in captivity with good care. Males live significantly shorter lives — typically 4–6 years — and will decline within 1–2 years of reaching sexual maturity. Because females live dramatically longer, captive-bred females typically command higher prices than males or unsexed juveniles. Sexing via a shed molt is the most reliable method when purchasing unsexed animals.
Health & Common Issues
- Extended fasting: The most common concern among new keepers. Fasting for months is completely normal for this species and should not be confused with illness. Offer prey every 2 weeks and remove if refused.
- Dehydration: A noticeably shrunken abdomen usually indicates dehydration and should prompt you to check that fresh water is available and the enclosure provides an appropriate moisture gradient.
- Injuries from prey: Always remove uneaten prey within 24 hours. Crickets will bite a molting or post-molt tarantula.
- Abdomen rupture: Caused by falls. Always handle close to the ground.
See our Tarantula Diseases & Health guide for more detail.
Is the Chilean Rose Right for You?
The Chilean Rose is an excellent choice if you want a hardy, low-maintenance tarantula that is forgiving of beginner mistakes and rarely aggressive. It is one of the most affordable and widely available species in the hobby, making it an easy entry point. The tradeoff is unpredictability — this species is famous for refusing food for extended periods, which can be frustrating for keepers who want a more active feeding response. If you want more consistent feeding behavior and faster growth, consider the Curly Hair Tarantula instead. If you want a larger, equally calm species with a similar temperament, the Chaco Golden Knee is a natural next step.
New to tarantulas? Start with our Tarantula Care Guide and Are Tarantulas Good for Beginners? overview.
Quick Reference
| Parameter | Recommended Range |
|---|---|
| Temperature | 68–80°F |
| Humidity | Low ambient; moisture gradient in one substrate corner |
| Enclosure (adult) | 12" × 12" × 10" minimum |
| Substrate depth | 4–6 inches minimum |
| Feeding frequency | Every 7–14 days (adults, when eating) |
| Lifespan (female) | 15–20+ years |
| Lifespan (male) | 4–6 years |