I tried putting about 5" of leaves over small maypop that was in a protected area in zone 5 for the winter. It did not come back in the spring. I would like more specific and detailed information that would help me successfully keep the plant through the winter in zone 5.
This could be a difficult task in your Zone 5 garden. The fact that nearly the entire United States suffered a below normal winter this past year, the garden zone likely was much colder.
If the vine was in a pot, you could move it into a garage or sheltered area. If the Passion Flower is planted in the ground your left with mulching.
Here are a few links with more information. Best of luck.
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/the-passion-flower-a-perfect-tropical-vine-for-growing-indoors.htm
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/preparing-a-passion-flower-vine-for-winter.htm
If I grow a passion flower in a pot, will it stunt its growth?
A too-small pot will stunt any plant's growth, but passion flowers can do well in containers if they are large enough. Here's how to grow them:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-fruit-vines-in-pots.htm
I have 2 vines that grow so well in a container and now want to replant in my garden next to a fence to give them more space to grow. When should I replant? We live in the Northern Cape in Keimoes, very hot and humid in summer, and very fertile soil and ample water. Please advise. Thanks!
Here is a link with planting and growing information.
http://www.arc.agric.za/arc-itsc/Leaflets%20Library/Cultivating%20granadillas.pdf
The main trunk is split. Is there anything we can put over the splits? I hate to lose the vine...it gives a lot of privacy.
If the leaves are also yellowing and falling off, a split in the trunk can be a sign of fusarium wilt, a fungal disease. See these articles for more:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-vine-problems.htm
http://www.padil.gov.au/pests-and-diseases/pest/main/136585
https://www.gardeningknowhow.com/plant-problems/disease/controlling-fusarium-wilt.htm
If there is no disease, then it's best to leave the trunk alone because it will recover better if nothing is put over the split.
My passion flowers are now producing lots of green "pods?" what do I do with them? store- let dry out? plant next spring? or, do they need to be cut open... I don't even know what's inside?
Your Passion Flower plant is producing it's fruit. It will turn from green to purple and will fall to the ground when ripe.
Here is a few articles to refresh you on this plant and it's care.
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-care.htm
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-fruit-is-rotting.htm
I wanted to know if I could put something on the split. Never got an answer...
Splitting of the main trunk of a passion flower vine can be a sign of Fusarium disease. This may require replanting since I don't think it can be cured.
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-vine-problems.htm
http://ceventura.ucanr.edu/Com_Ag/Subtropical/Minor_Subtropicals/Passion_Fruit/
It is best not to put anything over the split. Plants with split trunks or limbs typically heal better if nothing is placed over the wound.
Can you keep a passion fruit vine outside over the winter in Ontario, Canada?
Passion Flower Vine is hardy in zones 6-9 and a mild zone 5.
If your temperatures go below -15 degrees F, the vines will not survive.
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-care.htm