How do i collect seeds of my plants with flowers?

the plants that i have are plancies, lemon balm, couch, chocalate mint, common mint, pineapple, olive tree, buganvilias,parsley, curry bush, jacarandas, sweet basil, greek basil, gaisha girl, honey suckle, gardenia, chives, venus fly trap, gobble guts, camelia, globe amaranth, chamomile, sunflower, everlastings, orange twist, alyssun, asparagus fern, lemon scented thyme, lavender, aloevera

How do i collect seeds of my plants with flowers?
I have a great book, "Wymans Gardening Encyclopedia" which gives all the information an each of those above, grow, propagation, disease, varieties, problems, everything. These sources are the single most important book you can own. Don Wyman's book (curator of the Arnold Arboretum), is top notch 5 star.
Reply:Every flowering plant can produce seeds if pollinated.try pollinating them.