Gardening Methods

What are some good perennial plants and flowers that will bloom for about a month during the summer?

I am planning on having a really big flower garden next year. I would like to plant some perennials, but I would want them to last for about a month, more would be better. I have already bought some gladiolis and some other different kinds of mixed bulbs, and these will bloom for about 1-3 monthes. What are some more? Any lillies or anything like that? I don’t care which type of perennial, but as long as it is nice.
Ps. I have a packet of snapdragon seeds and a packet of larkspur seeds that i didn’t get to plant this year, will they still be good for next year, so i can plant them then? Thanks in advance.

blackeyed susans
cone flowers
primroses
yarrow
wild geranium
shasta daisies
russian sage
coreopsis
I have had these in my gardens for a couple of years now and they bloom or continue to bloom all summer long. as for your seeds…sorry I can’t help with that one, I don’t buy flower seeds cuz they never grow for me and I am not that patient…lol

Lawn & Garden Care : Types of Summer Flowers