Are guavas self pollinating?Are feijoas too?
Do some varieties produce better when pollinated with other varieties?
Should i buy 2 varieties of each fruit plant or can i just buy one variety?
2 varieties would be better,right?
Lots of the Myrtaceae that have big, showy flowers are trying to attract nectar feeding birds. All the places in the southern hemisphere where myrtles are endemic tend to have birds that depend on them. In NZ we have tuis and bellbirds, for example, and they're spending a lot of time in the feijoas right now (not to mention the flax). Next month they'll be in the pohutukawas and around May they'll be arguing over the big blue swamp eucalyptus in the middle of the property.
I also see lots of bumblebees in the feijoas. Don't know about honeybees...they're in full flower right now so I'll pay closer attention and report back.
If you're gonna buy things, buy this thing and I get a fat kickback: