Late to plant seeds, you can buy saplings of tomatoes, brinjal, capsicum, broccoli, cauliflower and cabbage. Leafy greens can be added in that big tank you have with brinjals in it. Like sarso, palak, methi etc. Mooli and beetroots can be added through seeds, you will get harvest in 90 days. Do mixed gardening as well. Helps crops. Ex- plant matar seeds with your leafy vegetables. Good luck.
