Not too big honestly, maybe 9"x18"? I recently lost a bunch of plants to thrips so I had the space and some birthday cash :P

I can try! So they were wrapped in brown packing paper, kind of coned around it. the inner paper was reinforced under the pot with tape, all soil and sphagnum moss arrives dry by the time it gets to my place (unsure if they water before packing it or not). Most succulents arrive with tissue (like kleenex) on the soil and tucked under the leaves and then taped down on the corners of the pot. The pinguiculas had tissue completely over top to prevent damage to their delicate leaves. the brown wrapping paper is folded down so it all sits kind of scooped (kinda like how bouquets are wrapped some times). Some of the more fragile hoyas and succulents also had that like plastic stuffing that you'd find in a pillow or stuffed animal over top of it for padding. All the larger hoyas came with the wire trellises which, aside from being for the plant, helps prevent squishing.

All the packages were tucked in basically feet to head with each other. and then the empty space had more brown wrapping paper loosely in it to prevent any movement.

I found a pic of a succulent or something that hadn't been opened yet on the internet. The taller plants are longer packages to accomodate the vines and folliage but this is essentially it (looks like this is actually one of theirs):

Crystal Star Nursery, it's my 4th time ordering from them. It's hard to find hoyas where I'm at and even just in Canada in general and they've got a really great selection. I highly recommend them if you're in Canada.

The plants are always healthy and mostly pest free aside from the occasional fungus gnat. The gnats aren't a big issue for me anymore though since almost anything that isn't a succulent or cactus gets potted into semi-hydro.

**I should mention that I bring up pests because the nursery that's near me is notorious for all kinds of bugs so it's nice when I find one with healthy plants haha.