Grow roses in potatoes Take rose cuttings and insert them into a potato. Then bury the potato in the ground and watch your roses bloom. The potatoes help keep the plant moist while it grows. Check out the full tutorial from Amateur Gardening Keep slugs away with pennies The penny is the star of the show in this article! Did you know slugs aren't very fond of copper? Attach (pre-1983) pennies to a clean baseball or bowling ball with water resistant glue and place it in your garden. It looks pretty and keeps your veggies safe! Start seeds in a lemon peel Keep your early seedlings safe, give them extra nutrients and add more nutrients to the ground with a citrus fruit rind. Add a little dirt and plant the seedling. Once it's taken root, plant the entire thing in the ground. The fruit peel will eventually break down, adding more nutrients to your garden. Keep melons safe with nylons One of the best ways to grow melons is on a trellis as it keeps pests and diseases away from the fruit. However, the weight can pull the melons off before they're ripe. Keep melons on the branch longer by cutting a leg off an old pair of hose and using it to create a sling for the melons, Rodale's Organic Life recommends. Another penny one... Slow the spread of blight with pennies Blight can ruin an entire crop in your garden. If you want to save your plants without turning to chemicals, Vegitate Gardening recommends slicing part way through an infected branch and inserting a pre-1982 penny into the slit. The copper should help slow the spread enough to harvest your crop. And one last one, with no picture: Keep fungus away with cinnamon One risk of transplanting flowers, fruits, and plants is that there is a higher risk of fungus growth on the replanted roots. Protect the roots by dipping them in cinnamon before replanting.
I say nope to most of them. pennies don't keep slugs away unless they are real copper. and even then, who would glue pennies down to a board to keep them in place. go buy the copper strips that are thin and pliable. and that penny in the leaf axis? um, looks like a great way to ruin the stem. copper is a spray we can use for fungal issues, but I don't think I would waste my time trying to get a penny inserted just right and make an open wound intentionally on a vine plant. a seed in a lemon peel? who cuts their lemons this way? never seen it happen. I think they peel will rot before you can get the seed to transplant size. the nylons on the melons is used to support the melons if they are on a trellis. If they are on the ground all the nylons will do is help keep the rind moist for fungus to grow on it. and the cinnamon? doesn't make a difference anytime I have tried it. keep the plants drier don't overwater. so for most of them they don't look like real viable solutions. the potato one though looks doable.
A gardening hack for starting seeds that does work is an egg shell. when cracking your eggs with this in mind crack as small of a portion of the shell off as possible. after removing the white and yolk rinse it and put it back in the egg carton. when you have used all of the eggs fill the egg shell with soil and plant your seed. I did tomatoes with this a few years ago. it really did work. when planting give it a squeeze to break the shell and finish planting.