Which flowers can I grow for my early June wedding?

[JemIsMyNameNooneElseIsTheSame]

I'm a fairly novice gardener, but would love to grow some flowers to decorate tables for my rather low budget wedding next year and possibly even make a simple bouquet out of. I will ask my Dad to grow some too as back up as he has a large allotment and is much more experienced than me. What is likely to be ready in early June and when would I need to sow? Thank you

David Austin roses flower in the first year and there's a huge range of old, scented varieties.
But, for the rest it depends where you are.
Down south where I am; poppies, cornflowers, ox-eyed dasies, foxgloves, nigella, marigolds, dozens of other annuals...they're all flowering profusely by then. But it's been ideal growing conditions.
If you live further north, or we have a rough winter, you might be very disappointed.

Sweet peas if you start them early enough. Would have to be picked on the day itself though.

Poppies don't work well as a cut flower ime.

Pelargoniums (small plants rather than cut flowers).

I'm in East Anglia, so fairly temperate. Sweetpeas are the only flowers I've grown in the past and they were lovely, but released hundreds of bugs when I cut them and brought them in!

if you go onto Sarah Raven it will divide everything by flowering month - so will most sites. I am in East Anglia too and in early June I had alliums, roses, lupins, alchemilla, some delphiniums (although most only in past couple of weeks), salvias, cosmos. geraniums, wild roses.
peonies? definitely roses. I'm sure there are tons of others.
to get rid of the bugs (maybe pollen beetles?) put the flowers in a bucket in a dark room overnight and the bugs should move into the light. Or you can shake them out too.

You might get lucky with hydrangea but they'd need a sheltered south facing spot.

Go to a garden locally, look at what is in flower, take photos and get those grown.