Can Greek Tortoises eat Sow Thistle?
Sonchus oleraceus
Safety verdict
Caution
Why
[confidence: high] [source: The Tortoise Table plant database (theTortoiseTable.org.uk) and an exotic reptile veterinarian or herpetological dietary review specializing in Mediterranean tortoise species.] Sow Thistle (Sonchus spp.) is generally considered an acceptable forage plant for Greek Tortoises and is listed as suitable on tortoise plant databases, but it contains moderate levels of oxalic acid and latex compounds that warrant rotation with other greens rather than exclusive feeding. It is far preferable to high-oxalate or toxic plants but should not form the dietary staple.
How much / how often
Offer 2–3 times per week as part of a varied diet; do not feed as the sole or primary green.
Preparation
Offer fresh, unwashed leaves from pesticide-free sources; avoid plants collected near roadsides or areas treated with herbicides.
Nutrition (per 100 g)
64 mg
Calcium
44 mg
Phosphorus
1.5:1
Ca:P ratio
low
Oxalate
2.1 g
Protein
2.2 g
Fiber
Reviewed by admin on May 2026