I can't think of one that gives every single detail, but I do like MOBOT, Missouri Botanical website. Look around in there for something like "plant finder." Bluestoneperennial website gives a lot of info for their plants. Perennialresource.com is another good one. You may have to add some info to each plant after printing it out by looking at other resources, like books by Tracy DiSabato Aust.

I like Scheepers. If you want large quanities their affiliate Van Engelen is excellent too. Fall is time for cool season vegetables like cabbage and lettuce, Here is a link that might be useful: John Scheepers

I love FabricMart.com, but I'm not sure they have anything similar right this minute. Their prices and service are both excellent. They're my first go-to store. Fabric.com has a huge selection and ships quickly, but the quality of everything I've ordered so far leaves enough to be desired that I don't even look there anymore. GorgeousFabrics.com has beautiful things. I've not ordered from her, but I know she's known for good service. Her fabric is expensive fabric, but QPR is good. Denverfabrics.com has a wide selection of everything. I haven't ordered from them yet, but am considering it. Prices are also good but not great. Emmaonesock.com and Sawyerbrook.com both are rumored to have beautiful fabrics/good service, but their prices are high enough I haven't explored much. I don't their prices are that out of line, I'm just cheap.

I don't know of a free app to do this. There are some low priced ones but truly, the images they generate create the fakiest looking plants, I don't see how it is really a great help. If you have basic drawing ability, you might upload a photo and use something like Microsoft Paint to draw over it, or a program/app for a tablet (if you have one). For drawing, it helps to have a stylus and touchscreen.