One of the "crowfoot family" woodland buttercups (Ranunculaceae)?

For a large quantity of blooms to cut, you will probably be better off with annuals than with perennials, especially if you're growing them from seed. I grow mostly perennials and woody plants, but do have a few thoughts for you. Zinnias will grow and bloom quickly, but I find the water turns very smelly after just one day; so if you're going to arrange them the day before the wedding, that's a consideration. Cosmos also grow quickly, make good cut flowers, and should give you masses of blooms in colors ranging from white through pinks to deep red. Snapdragon is another quick grower, blooming in late spring to early summer. I hope someone will chime in with more suggestions for you. If not, perhaps try the Cottage Garden forum - there are lots of very friendly and experienced gardeners there from all over the country ... there's bound to be someone who grows annuals in your climate. Don't forget fillers (like baby's breath, gypsophila) and greens - you can choose from solid or variegated leaves, smooth or rough textures, large & bold leaves or long and narrow, even trailers like ivy, whichever best suits your arrangements and your fancy. A trusted friend to help with the arrangements sounds like a good idea. Have a wonderful time with the preparations and best wishes on your wedding day.

As diggingthedirt suggested, knowing a bit about what your yard's conditions are as well as your gardening preference (symmetrical and tidy, wildly blooming but disorganized, ...?) will help you get suggestions. A photo will also help us envision what might look nice. Along with flowers also consider variegated or colorful (gold, maroon, etc.) foliage and contrasting foliage texture (ferny vs broad vs. long & slender vs. cut-leaves), as often it is decorative for longer than just flowers. Below I've linked a thread asking about an early VT wedding which may have some ideas for you, including some specific suggestions for annuals that will bloom for all of August under normal conditions. If you go to the bottom of the main New England forum page there is a search box. Type in wedding and look at the various threads, even if they are for the wrong time of year. Several of them discuss the potential pitfalls of this type of a plan. They will help you evaluate whether you really want to try this for yourself on such short notice. In general if you want to use perennials many would want to be started the previous year. You can use annuals if you choose varieties that will still be blooming in August and as Digging suggested, there are some perennials that will bloom the first year. If you end up deciding to do this, have a backup plan in case a dog digs up your beds, a hurricane arrives in August and flattens everything, or the weather is odd and nothing ends up blooming at its expected time. It might include scoping out nurseries ahead of time and then buying well grown pots of annuals and putting them in elegant planters or obtaining reallu large vases in which to place tall cut flowers. Paniculata Hydrangeas (shrubs) will probably be blooming then, but you would have to choose one of the smaller selections like 'Little Lamb' since your garden is small, get the largest potted plant you can find and hope that it is happy enough with its new site that it blooms this August. There may be some clematis that would bloom in your area in August, but again, you'd need to buy the largest plant you could find and plant it with as little disturbance as possible so that is more likely to bloom. Regardless of what you plant, plan to spend time weeding and watering on a regular basis this summer. Using pretty mulch (like cocoa hulls if you don't have a dog) will help keep moisture in your beds and will discourage some of the potential weeds, but both will need attention if the garden is to look its best. I am not trying to discourage you, but I would also hate for you to be disappointed that things don't look as you envision on this special day. Let us know what you decide to do. We love seeing photos . . . Here is a link that might be useful: Early August VT wedding thread

What I understood from the articles was that the Primrose Jasmine is evergreen with 1-3 inch long leaves and the blooms are fragrant while the Winter Jasmine is deciduous and blooms on bare branches. Winter Jasmine leaves are only 1 inch long and it is not fragrant. I didn't detect fragrance at all and the branches are not leafed out yet. Otherwise, they look identical! My neighbor mentioned that the branches are squared. Thank you so much for pointing me in the correct direction!