Any strong non toxic plant is fine for crested geckos. As they don't 'eat' plants in general, there is little risk even if typically toxic to eat plants are used. But to be on the safe side, any plant safe to house with bearded dragons and other reptiles, are fine with crested geckos. Pothos is one. Hibiscus plants are good too.

Pretty much choose plants that don't need alot of sunlight and are hardy. As you don't want to over heat crested gecko cages, plants that thrive in temperate environments or shade, work best.
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PHLdyPayne

Forum Princess