Feijoa. Photos of my plants, planted very close on pourpose thanks to Miyawaki. They will create a hedge and since all plants are seedlings the close planting miyawaki style will enable much easier selection. Anyone can enhance/adapt/make grow better any given plant by sowing diverse or cross-pollinated seeds from several varieties grown together and then selecting the best fruiting individuals and either taking them out or cutting back the other less good ones around it.