For porch plants, or hanging plants, I don't think anything will outclass a plain old Spider Plant (Airplane Plant) and this one can be either green with yellowish stripes or plain green. I love all plants with variegated leaves, so have more of them than any other kinds. The little spiders root in water, in dirt or just in the air. Where you are these should be taken inside in the winter, but here they stay out all year round.
I start seeds by flattening out coffee filters on a saucer, wetting it and sprinkling the seeds on it. Then I cover it with another coffee filter, and put plastic over it. I check them every few days till they sprout then put them in dirt. I used to use paper towels but the roots grow through the paper and would break off when separating them.
Lots of flowers will self seed, then can be dug up and replanted where you want them. I make a lot of my own potting mix, and always add fresh!! cat litter to the DRY mix. It's formulated to hold moisture and plants grow better with it. Peat moss, sand, compost, the fluff from NEW baby diapers or NEW adult diapers which have water grabbing crystals, rotted sawdust, old shoes, etc (just wanted to see if you were paying attention!!) But at one time I did use my DH's huge old boots for pots, just poked a hole in the toes and the plants grew nicely!!