MHave you sown enything?
Cornflowers
Orlaya
Ammi
Snapdragons
Larkspur
Cosmos.
Scabious
Knautia
Clary sage - you can get it in purple white and pink.
Veronica
Roses
Peonies? They are over before end of June here.
I just had a look at some of my photos from last year. If you have a greenhouse and keep dahlia tuber undercover you could get a fair amount flowering by end June. You would need to get them sprouting indoors.
![[-]](https://gardenandgossip.org/images/zen/collapse.png)