Orlah & Neta Revay

Question: I saw that a green grocer's kashrut certificate in Jerusalem stated that only non-mehadrin stores are allowed to sell raspberries. Why is that?

A mashgiach of a large kashrut organization, who works in China, checked a company growing monk fruit in a greenhouse onsite. He found out that since monk plants produce the most fruit the first years, the company harvests the fruit only from monk plants during their first three years. In light of this, is monk fruit considered orlah? 

I want to grow a blueberry bush at home. You wrote that orlah applies to hydroponically grown trees. What about aeroponics?

 I want to grow a blueberry bush in my house hydroponically, using water and fertilizer. The bush produces fruit by its second year. Does orlah apply to trees grown hydroponically?

Are trees grown indoors, in unperforated pots, subject to orlah laws?

I heard that passionfruit is treated like a tree by Ashkenazim and thus obligated in orlah laws. So, my question is if we're allowed to eat passionfruit products (not the fruit - the products), like ice cream, juice, and the like when they are imported from outside Israel?

I planted a passionfruit vine as a living fence. Do I have to wait three years to eat the fruit?

There are avocados in the supermarket (I live in New York) stamped "Israel." Should I be concerned about orlah? I know it's de'oraita in Israel, and safek de'oraita lechumrah.

I have a strange question… we were at a public park that had tons of pomegranate trees in RBS. They were big so there is no doubt in my mind that they are old enough… is it halachically allowed to take pomegranates from a public park if they’ve already fallen to the ground? 

Am I allowed to take cuttings from overgrown wild sage or rosemary at the side of the road in public areas? A few people I know have said that you’re allowed because they grow back and it’s actually good for the trees to take cuttings… but is there an issue of stealing? What about terumot and ma'aserot?