If the supplier didn't send planting instructions, we suggest putting them in the ground (or in a container, if that was the goal) as soon as possible so the roots don't dry out and so they can resume growth. Hosta prefer a location with some amount of shade in the summer, either from a building shadow or tree canopy. They will tolerate several hours of direct sun, but are best with shade or at least dappled light during the hottest midday/afternoon hours so the foliage does not "sunburn." Soil should be moist but well-drained, though I find that Hosta are fairly drought-tolerant (to a point) once they are established, meaning that you don't need to keep their roots constantly damp.

If deer visit the part of the yard you intend to plant, the Hosta will need to be protected with a physical barrier like netting or a chemical repellent, though the latter option isn't foolproof. Deer love to eat Hosta, and rabbits might nibble on them as well.

They will shed their leaves in autumn and regrow them every spring, and Hosta can be a long-lived perennial as long as its needs are met. They will have the best winter-hardiness in the ground compared to in a container, but sometimes they do admirably well in a pot if the container is large enough. How large the Hosta will mature greatly depends on what variety it is (there is a huge range in size from the most miniature forms to the largest-growing), so take into account the expected mature height and width when deciding where to grow it so it's not overrun by larger plants or so it doesn't cover neighboring plants you want to be able to see.

Miri

You're welcome.