The 20' x 20' area is open on three sides, surrounded by lawn and at the end of the established garden on the left. It get sun all day. I plan to use walkways, probably with the flagstone/slate to tie in with the established garden. I have no other plants in this area yet. I do have a garden bench I can use which is black. As far as color choice, the pink/rose family is my favorite, but in the established garden I have all colors but the colors are separated, such as the yellow/gold/orange/red daylilies are in one area along with purples and whites nearby. The plants that are in shades of pink, rose, and blue are in other areas. Thank you. Jane This is the left section of my established garden. There is approx. 25' more of the same type of perennials before the new 20' x 20' section starts. The section I am turning into an extension of the 'old' garden was filled with daylilies, but I have/still am removing them. It was a daylily bed when I was thinking of getting in the 'daylily business'. I still love the many daylilies I still have but I now want a beautiful garden in this section.

Acidic fertilizer will not work on your Buddleias.....but the better the soil, the better the plant.....which may give you better looking flowers.

Deeje, not familiar with any of these but found a few that are advertised as hardy to Zone 4: PINK DELIGHT http://www.greenwoodnursery.com/page.cfm/9974 STRAWBERRY LEMONADE http://www.waysidegardens.com/webapp/wcs/stores/servlet/StoreCatalogDisplay?storeId=10151&catalogId=10151&langId=-1&mainPage=LGprodview&ItemId=49781&PrevMainPage=gatepage&scChannel=Gate%20Monrovia&OfferCode=V3H GUINIVERE http://www.amazon.com/dp/B000PURN32?smid=A2M3UEMSNZKK5L&tag=msnshop-lawnpatio-20&linkCode=asn DARTMOOR http://www.bigdipperfarm.com/cgi-bin/searchstuff.pl?Catagory=Shr BICOLOR http://monrovia.com/PlantInf.nsf/08510e01e61cc962882571a9005a9153/66ee74cccee94a8588256efb0059a6e3!OpenDocument&Highlight=0,BUDDLEJA Monrovia is grower but they have "find a vendor" feature to see if it's available anywhere near you. A local nursery here is willing to add things I want to their order if I can't find it otherwise and need it for special purpose as size or other things...like your Zone 4 requirement. Good Luck!

I would skip the buddleia's. They are not native. They can be invasive in some parts of the country. (Probably not an issue in Nebraska though) There are much better plants for butterflies than them. I would suggest a planting of a variety of natives that provide both nectar and caterpillar food. A mix of coneflowers and milkweeds would be a great choice for butterflies. If you want shrubs, butterflies love New Jersey Tea (Canothus americanus).