Eden garden

noun2

1. •
   An idyllic place wherein innocence and perfection reign; any delightful region or abode; a wondrously abundant garden or lush natural habitat.

   • But the forgetfulness was not entire; the memory lingered long of an age of harmony, of an Eden-garden left behind. — 1920
2. •
   A state or condition of unsullied innocence.

   • Nature, in endowing her little ones - in planting in the heart of each of them an Eden garden, fairer than the terrestrial paradise which Adam lost - reads a great lesson to their guides and teachers. — 1849