Summer Planting?

Summer Planting?

I'm more than a little angry at our home owner's association's community garden coordniator. I applied for a plot 2 months ago, got the confirmation and general location a week later, so I started my seeds in those Jiffy Greenhouses with the little peat pellets. Since then, it's been HELL trying to get the plot that's mine marked off. They still haven't, despite me calling 2-3x per week for several weeks, and then every day last week because my poor little plants are still in their little greenhouse pellets! So I've decided to say FU to the HOA and plant the garden in my yard (even though "only flowers" are generally allowed). So my question to you, oh Gardeners, is if the plants (some spinach, lettuce, broccoli, peppers, and squash) are still green and alive looking (the squash are even flowering now), should I plant them even this late? Should I scrap/compost these (*cries*) and start new with later-harvested veggies? What, exactly, could I plant from seed this far into the late spring? I'm in Maryland, by the way. Thanks for any suggestions as to what to do with my hopefully-not-stunted already-started veggies, and recommendations for summer-planted veggies!
Mystery Plants and Other Stuff

Mystery Plants and Other Stuff

There had been a few new additions lately…

There had been a few new additions lately…

Spring flowers

Spring flowers

Corners of My Room.

Corners of My Room.

And a big eff yoo to Winter >:[

And a big eff yoo to Winter >:[

Um… What kind of tree is this?

Um… What kind of tree is this?