Hardy Kiwi Pollinator Vine

It has male flowers, which have a brilliantly colored yellow center due to its pollen-bearing anthers.

This is the male counterpart, yes. A non-fruiting pollinator for female kiwi vines. You might try starting the vine in a container indoors near a sunny window. This will help protect it from whipping winds and other elements that might have caused past failure to thrive. Once it's sizable and healthy, carefully transition the vine outside into the ground when it has had some time to grow larger. This article on acclimation (or hardening off) helps advise what to do to transition plants from indoors to outdoors: http://www.starkbros.com/growing-guide/article/acclimating-new-plants-and-trees

My 4" pots of both male and female kiwis both got over 6 foot tall first year, then died back some over winter, I would say no problem.

Check a recent Stark Bros, Kiwi vine listing. They should have some very productive "Self-Pollinating" Kiwi varieties. Since your existing Kiwi vine is healthy, robust, & well established, if someone in your area has experience with Grafting you may ask if they can try "Top-working" your existing Kiwi vine, sturdy "canes" to a "Self-Pollinating" variety. Grafting is best done Late-Fall (go heavy with the Bees-wax sealing) or in Spring-time (when sap starts to flow). You have nothing to lose trying "Top-working" the existing very >sturdy-canes<. It is done all the time commercially in Apple Orchards. ("Don't throw out the baby with the bath water": as it took you years to establish the "root-stock". You have the trellis setup & robust root stock. If the "Top-worked" grafted vine-trunks don't show green sprouts by end of Spring, you can always "Dig-We-Must".

You had better have a very sturdy trellis, because these vines grow profusely! Mine have climbed a section of my pergola 8'x7', & my pergola is made of 6"x6" posts buried 3' in the ground and cemented in. I used 2"x6" cross bars, with the trellis in between for the vines to climb on. The vines wind very tightly on the trellis. Beautiful dense climbing vines!

Do not know.

We appreciate you reaching out to us. The genus and species is Actinidia arguta. If you have any further questions please don't hesitate to reach back out to us. Have a great day!

It might help a little. Issai has both male and female flowers, and is self-pollinating; the pollinator vine might help pollinate the female flowers, but not the male.

Mine always start to leaf out in early spring, but we always get a hard freeze at least once in April - which destroys those early leaves. However, the plants recover and put out new growth just fine.

Yes, I have had to put cages around my kiwi after the deer (I think) ate them to the ground.
The vines grew back inside their cages but still no fruit after 5 years.