rejuvenate roof garden and planning to grow flowers and vegetables again

my Habit of roof gardening started very long back when i was in fifth grade (1993) when we bought around 20 pots all of which contained different colors of rose plants and after a year or so another 15 pots were bought and was left empty i was very interested in gardening then, so i planted some show plants bought from my friends home and some vegetable plants like:

1. Tomatoes
2. Green Chillies.
3. Village Bringals (Egg plant).
4. Lady Fingers
5. Beans(Chappardha avarkai dont know exact name in english).
6. Fresh Mint Plant(Which used to supply mint full year).
7. Bitter Groud(Hagalakay in Kannada, kakarakay in Telugu) and few more...

and i used to water around 35 pots every day this continued until 3.5 years back when there started a construction next to my home and i joined to work slowly i was out of time and i became damn lazy and cement and dust from the neighbouring construction ruined plants and i lost interest in home gardening i abandoned it.

below are the PICS i took long ago scanned and uploading it

Birinjals
Tomatoes


Beans (still not yet formed)


Now recently when i saw pictures in one of my distant cousin's blog (Mohan) about his roof garden. i thought why should not again start growing plants and any way i am little free now(project is under testing) and construction work is long completed i ploughed around 12 pots today morning and planted few seeds and mint stems i think my roof garden will be in full bloom in next 3 weeks and i will upload/post the pictures shortly.