First and foremost you'll need to remember that if they are hungry enough there is no such thing as a plant a deer won't eat. On another discussion here there's someone from New Jersey who's contending with deer that are eating daffodils, larkspur, and plastic bottles! (Daffodils & larkspur are both famously toxic to mammals, and so are generally regarded as safe to plant even if you have a deer problem.) Beyond that, I'm not sure what to say or not say, except of course that I wish you well!

Oh, if you can find them you might want to consider foxgloves (Digitalis). That's a genus of beautiful flowers that aren't usually dependable perennials so much as they are reseeding biennials, but they are the sort of thing that will kill a mammal who eats too much of them. (Digitalin is a famous heart medicine that was first derived from these plants. In very small doses it helps as a cardiac medicine, but in larger doses instead of helping a sick heart beat normally it kills by preventing the heart from beating properly.)

You also may want to go online and see what plants are in the buttercup, amaryllis, poppy, and nightshade families. These are all families famous (or notorious) for having members that are toxic, sometimes severely so. Plants that are toxic are often something a mammal such as a deer can smell or taste, and so such plants tend to be avoided by them. (For that matter, even some of the plants in the bean family are quite toxic, but you have to pay careful attention then, because other species in that family are quite nourishing.)

However, as I wrote earlier, once a deer is hungry enough it will eat any plant.

While it's true that starving deer will eat anything, even if it's poisonous, ALL the plants the original poster has chosen except the peonies will be highly attractive to deer. Highly resistant plants include (but are not limited to) Nepetas, Agastaches, Lamb's ears, Irises of all types, Pardancandas, Salvias, Verbascums, Eryngiums, Achilleas, Hellebores, Pulmonarias, Brunneras, Iberis, all ornamental grasses, ferns.

There are many others, but I'm still only half awake.

greenbug, you might want to acquaint yourself with some of the fine mail order nurseries like Bluestone, Rare Find nursery, High Country gardens, etc. You won't find the plants I mentioned at Walmart or Costco.

Pretty much what laceyvail said. Daylilies will be browsed in early spring and late fall, but might be OK during the bloom season.

Give the peonies room. They start slowly, but do get pretty big. You will love having them for cut flowers.

Deer didn't used to bother my phloxes too much but the when the woodchucks moved in, they did. Give these room, too. If they're regular phlox paniculata, they'll hit 4' their second year and slowly spread into a good-sized clump.

The roses may turn out to be a major disappointment, depending on what they are. If they are 'Knockout' varieties, they might be OK since they bloom all the time, even when chewed.

You'll need to keep on top of the watering with astilbes. Plant them in some shade within reach of the hose.

The deer-resistant plants laceyvail mentiones also worked for me and you can find most of them at any decent local garden shop. Nepeta, especially, is one of my very favorites because it blooms early, gets to be a big clump quickly and reblooms off and on all summer. It can readily be grown from seed - check out the seed exchange forum.

Lavender, germander and other herbs (including all the salvia relatives) work. Many can be grown from seed. Purple basil and perilla look nice in the border, even though they are annuals.

Daffodils, squills, snowdrops, ornamental alliums and most spring bulbs (except tulips) work well and are easy and fairly deerproof. You can pick them up cheap in the fall.

No need to diss the annuals - they serve a purpose in the garden with their long bloom season, even if they only last the one year. Grow them from seed and save some bucks.

Oh, greenbug, I was just in Costco and had to pass up the Daylilies and Phlox because I know the deer will eat them. Didn't know miserable mangy groundhogs ate them but there's not much they don't eat.

My father's rose bushes all have 4' green rabbit fencing in circles around them. I still have to spray them weekly with a repellant and even then they are often defoliated and "deflowered" by the deer as long as there's anything left on there. They can eat an entire 3'x4' floribunda rose bush in one night. Heartbreaking so better you know you should take precautions.

You can do it but it's going to take much effort on your part to have those beautiful plants and blooms.

I didn't want to post an answer because I didn't want to rain on your parade. Better you be prepared for the extra protection your plants are going to need than plant them, wait/watch the growth/bloom only to have them disappear one night.

I've tried for 2 years to cross reference a deer, rabbit and slug resistant list of plants. Impossible to find wide variety for 3 season bloom for which plants are resistant to all three critters. I can fight slugs to some degree with diomatceous earth sprinkled around susceptible plants so I focus more on deer and rabbits. Rabbit fencing installed correctly helps but doesn't look too hot around highly visible flower beds. And groundhogs can climb or tunnel under these fences anyway.

I've ended up with a lot and/or getting more varieties of Agastache, Salvia, Nepeta, Echinacea (iffy), Alchemilla Mollis (Lady's Mantle), Astilbe, Foxglove, Lobelia (iffy), Monarda and Allium (Fall planted bulbs). Adding to all beds this year highly aromatic (noninvasive) herbs (rosemary, lady lavender, oregano,thyme & sage) which I'll either grow from seed and/or buy 6 packs this spring to spread around the beds to try and distract critters with scents from eating other more vulnerable plants.

Last Fall I planted some Penstemon which only had a few leave eaten over winter but rabbits haven't been out yet. We'll see. Have Campanula to plant out but don't know if that'll be eaten. We'll see.

I've used the "plant search" feature on Bluestone Perennials web site and enter my zone, deer resistant and rabbit resistant. The results only show what they sell but it's a start.

Cornell Univ. has some helpful research resources.
http://www.hort.cornell.edu/gardening/factsheets/deerdef/index.html

There are a number of native plants that are relatively deer resistant. If you haven't already done so it was helpful for me to find my local county extension web site and locate their "deer resistant" listing. It indicates whether there's heavy, moderate, occasional, almost never deer browsing of many plant varieties. That's a place to start and then hope the deer aren't too hungry or overpopulated in your area (they likely are already like here) so you can at least have a shot at having your perennnials survive deer.

Rabbits and groundhogs are just another story.

Once you know you've got a significan deer problem it's research, plant/bed protection with a lot of trial and error. Swearing doesn't help in the least though it's therapeutic for a nanosecond. :)

I've gotten some plants from a very nice couple in upstate NY who have a mail order business called Graceful Gardens. The plants are starter size but some will bloom first year. And there's the shipping cost that's certainly not unreasonable compared to most vendors but an added cost nonetheless. They have a "deer resistant" section which I've used. Not failsafe and some things massacred by rabbits and groundhogs but I learned without spending a comparative fortune on blooming sized perennials. Very nice couple owns it and are very accomodating.

Gracefulgardens.com

I google "deer resistant nj" and peruse the online mail order plant vendor sites to see what they offer. I don't buy from them but use their info for "possible" list.

Found a pretty extensive list for CT at a place called Twombly Nursery. Don't have to buy there...just use their list(s) for starter reference. Linked site for you. Just remember rabbits, groundhogs or slugs might be a problem even if it's on deer resistant list. Even by googling each plant name on list(s) coupled with either rabbit or slug resistant you'll have to try things out to see what works.

As 'leslies' said...annuals have their rightful place for deer resistance and bloom power. Even I was able to start Ageratum from seed and there were only a few nibbles over a very long season of bloom without any slug damage. Same for Salvia coccinea. Sweet Alyssum gives a lot of bang for the buck. I ordered 4 Datura plants (supposedly poisonous) and I'm already assuming all the deer will need is a couple Rolaids after eating a good bit of them but it's worth a try.

Hope we haven't bummed you out too much. Just don't want you to go through more heartache losing "known" highly browsed plants. It's hard to realize you can't have some plants you really want unless you have a deck or can fence them in well. I'm still in denial on a few things but getting better...LOL.

Here is a link that might be useful: Deer Resistant Plant List - CT

The genus Datura contains more than one famously, highly (if variably) toxic species.

First off, don't get discouraged - gardening is so many things on so many different levels.

But never was anything truer than the deer resistant list of plants is shrinking and different deer in different regions have different tastes. Some years everything is fair game.

Reliably deer resistant perennials for me here - Oriental poppies, salvias, coral bells, peonies, nepeta, Russian Sage, Veronicas, baby's breath, Stella d'Oro daylilies (they have nipped buds from more expensive ones!), astilbes, ferns, Northern Lights azaleas, scilla, forget-me-nots, Johnny Jump-Ups, Bleeding Heart, true tiger lilies - they'll eat the growth tips and any buds from the fancy Oriental and Asiatic lilies. They pretty much leave my hostas alone until fall when natural food supplies are dwindling. They'd eat the buds and open blooms from my double white Rugosa rose. We don't have Japanese beetles here, but those will undoubtedly find and dessimate your roses sometime between early July and mid August.

It's all a learning experience - I'm replacing many things with shrubs and conifers just to beat the deer at their own game. They leave Spruce alone as well as Mugos, Junipers, boxwood, spirea, potentilla, viburnum, mock orange, barberry, actaea pachypoda, and I know there more safe things out there.

Wonder why deer have never developed a taste for annuals???
Some kind of honor code with the bunnies?