Terumot & Ma’aserot

I live in the Old City in Jerusalem. What do I do with my ma’aser sheni?

Loquat and almond trees bloom early, some before Tu BiShevat, and some afterwards. How do I take teruma and ma’aser from these fruit?

How can I actually give my ma’aser ani? It’s not really practical to find poor people each time I pick a few oranges from my tree to give them a slice.

 My question is as follows: Does the rule of “seeing the inside of the house,” apply to crops grown in a hothouse, meaning that it would it be forbidden to snack on fruit or vegetables in the hothouse without first taking teruma and ma’aser?

During the shemita year, we heard that many poskim view hothouses as a house for halachic purposes.

Loquat and almond trees bloom early, some before Tu BiShevat, and some afterwards. How do I take teruma and ma’aser  from these fruit?

Fruit brought into the house through the window is not subject to the obligation of separating teruma and ma’aser. I live in a private house, though, and the fruit first goes into my yard and only after that is brought through the window. Is the fruit still exempt from teruma and ma’aser in this case, too?

I grow several vegetables in my garden such as string beans, peas, and potatoes. Sometimes I take all or some of the seeds to plant the next round of crops in my garden.

1) Am I supposed to take ma’aser from the seeds before planting, or does ma’aser only apply to edible produce?

2) If there is an obligation of taking ma’aser at this point, do I need to take ma’aser from seeds I buy at a nursery?

If I buy grapes or olives from which terumot and ma’aserot were taken, and then use them to make wine or olive oil, do I need to take terumot and ma’aserot again (at the completion of the process, gemar melacha)?

Do I need to take ma’aserot from the mint growing in my garden that I use to make tea?

Which poskim are lenient about eating herbs grown in planters without first taking terumot and ma’aserot?