Although some of the variegated brunneras are lovely, for the differece in price, I like plain green just fine. This is a good plant for zone 5 - cold hardy, healthy and deer seem to walk right past it. Even in Z5, though, it can get wilty if it gets too hot or dry. Plant it in part shade and keep an eye on the moisture in the soil. I love all campanulas, but they are beloved by deer and woodchucks. If you have either of these, campanulas will just break your heart. If you are deer-free, still keep in mind that many of these plants last only a couple of years before conking out. All that said, I love my little c. poscharskyana and c. cochlearifolia. Of the larger ones, I usually invest a little time each year to start c. medium from seed. I bought c. rotundifolia ('Olympic' or 'Olympia' or something like that)from Bluestone a couple of years ago, but they died after two growing seasons. Digitalis. D. purpurea are biennial, so you can expect them to die after one bloom season. They are also, however, easy to start from seed, so you can either just get seeds or you can buy plants and save the seeds for planting. I've also grown other species that are true perennials (d. parviflora), but they weren't as showy as d. purpurea varieties. I never got d. mertonensis to overwinter in zone 5 (I tried twice), but there may have been all kinds of reasons for that. Gaura's hardiness in zone 5 may be suspect. I hope you hear from someone else about this. Salvia: my favorite is one that will not overwinter in zone 5 (or zone 7 for that matter), but I love it so much I dig it up and bring it indoors for the winter: s. guarantica 'Black and Blue.' It blooms for a long period in late summer and through the autumn. I also have s. uliginosa, which is an astonishingly prolific bloomer and my bees adore it, but it also needs to be dug up. In my garden last year, it bloomed from early summer until, well, until winter. Bluestone sells s. uliginosa, but 'Black and Blue' tends to lurk among the annuals at local garden centers. I used to grow 'May Night' in zone 5 but thought the flowers were too dark to make much of an impact. My favorite veronica is a short, spreading one that Bluestone sells - can't rememebr the name. Doesn't have a long bloom season, but the foliage is nice all summer. I also like 'Bergen's Blue' but that has an even shorter bloom season. I got 'Crater Lake' last year from Bluestone, but I haven't seen it do its thing through a full growing season yet. People have told me it flops. Of the phloxes, I love 'David' best It's like big fragrant ice cream cones growing in the garden! In a vase with cobalt blue delphinium chinensis it's stunning. 'Nora Leigh's' foliage is nice (variegated), but I think the leaves and the flowers clash while it's in bloom. Phloxes are generally susceptible to mildew, but both 'David' and 'NL' stay pretty clean. I love all nepetas - it's not possible to have too many of them! 'Six Hills Giant,' 'Walker's Low,' 'Fat Cat Select,' n. subsessilis, they're all great, all deer proof, all disease and pest free.

I think that my one single post to you hardly qualifies as "bugging you." Also, you already posted this once, and are now posting it twice in a couple of weeks. If you aren't having luck here ( and you posted twice so you obviously aren't) then the plant trading forum seems like it would be the best place to get what you want. Why is pointing out an appropriate forum to you considered "bugging you". I thought it would be useful to you.

Maybe you are having a problem with the shuffling of knotweed generic names. Try looking for Polygonum bistortum 'Superbum'.

I have 2 Persicaria polymorpha that I love but will most likely move from the garden proper into the south 40 where they can do their thing without taking over. They are enormous despite cutting them down 2x each summer. They seed themselves in the middle of my nicest grasses and hide until they are too big to easily pull. They get floppy in late summer and crush everything around them. We have tried decreasing its' size by hacking out part of the root but this just seems to give it a boost! Staking is out of the question (have tried). Despite the negatives, it is a gorgeous plant that always attracts attention. I especially love the flower change in late summer from white to pink and mauve. They sell it at our very good local nursery and I suggested they inform folks that it is not a plant for small gardens unless the plan is for one plant. I live in the PNW so would be interested to hear if it is thuggish in other zones. I do have several other Persicarias including Taurus which I love. I have it in partial shade which helps to cut down the watering in our now droughty summers. The limey green foilage and bright rose flowers pop in the light shade.