What is the best organic product to clean/shine large, outdoor plant leaves?

Question:

Answers:
If you have one or two decorative plants in "close-up" positions in your garden, you can add a little bit of canola (vegetable) oil to a bucket of water. Use a sponge or cloth to lightly spread the oil-water over the leaves.

Otherwise, just leave it to rain or irrigation.

Good Luck!!