Provide a use for seeds (and hypha) aquired via gathering by allowing us to use simple alchemy to combine some amount between 3 and 5 into a high quality seed from a base seed, then further improve the High Quality ones into special instead of going through breeding.  

And please make them stackable in inventory!

both suggestions are good

This would be nice, I was more looking at the 9 million seeds listed on the market that never sell because no one needs or wants to use them for farming.