Hello, I would like to join too. I can offer blackberry whiskey (with balckberries scavenged from Wandsworth common!)
Another roof terrace gardener here . I have about 10' by 12', first floor roof terrace in London overlooking the gardens and roof terraces of lots of neighbours. it's very pretty in a victorian terrace jumbled chimney pot sort of way. Although I would love a bigger space. Very jealous! it is at least SE facing so gets all the morning sun and really only gets shaded 2 hr before sunset.
Last year was a total wash out for me - started seeds too late which meant that they weren't established enough before it got hot and dry and I am very lazy at watering This year I am trying to be better - I only have pots to plant in as the whole thing is decked. Have started 2 types of tomatoes "sungold" and an experimental one from real seeds (I only grow cherry toms as full size ones don't have time to ripen - sad tomato people, do try a cherry if you've only done salad ones before), basil, parlsey and 2 climbing beans "trail of tears" and "cobra". They are in my teeny greenhouse during the day and taken in at night - I don't trust the overnight temps yet. I've also sown some mixed lettuce directly into pots. There is a bit of germination starting which always gets me unreasonable excited.
I also have thai basil to try too. Lovely for cooking with. But I just don't have the space for much more than this. Any other tall veg I can grow?!
My herbs (mint, rosemary, thyme, chives, sage, marjoram) are creaking back to life. I think the sage might have succumbed to death, which is not a surprise after frying last summer and freezing over this winter. One thyme has died as well but the other one is brutish - might need to cut it back at bit and then give it a good old trim after it flowers.
Flowers wise, my vinca has started going great guns I do love it. A good hard prune every 3-4 months and it starts flowering like mad again. Acer about to bloom, olive tree has done the best of all - it's looking great. One hydrangea has died I think although I am holding onto some hope, the other is starting to sprout (they suffered in the desert of last summer). Bay tree is very sad looking - totally crispy - but I imagine that it will either take off or a new tree will grow from the roots - like last time!
Aqulegia are about to go mad I think. I planted seeds from seed heads last year in a bit planter - they didn't do much last year but I think this year might be the year. They are a lovely deep purple colour.
Once that lot get going, I will see where I am and take a trip to the garden centre for some bedding plants for the wall planters. Colours are white/green/blue/purple. Too many colours just looks awful in such a small space, partic as it is a bit boho with not two pots the same!