Use chicken wire to encourage a Clematis (or other vine) to clamber up a tree. HOWEVER - be careful to leave some room for the tree trunk to grow thicker, check it every year, and don't plant an aggressive vine that might strangle the tree.
Make seed Tapes plain white paper towels scissors, a yardstick, a pencil, white glue sealable plastic bags seeds, both flower and vegetable seeds work well with this system tweezers (optional) food color if you want to color code your seed tapes (optional)
Do you soak your seeds before you plant? Soaking seeds before planting helps you to break down the seed’s natural defenses against what it expects from Mother Nature, which then allows it to germinate faster.
It’s a bit unconventional, but when I saw this big petunia plant thriving in a tree trunk it caught my eye. Horticulturally, this is not recommended practice for any tree you are trying to save, but it’s an interesting idea for utilizing an old stump. The simplest way to do this would be to simply buy a basket of petunias and transplant them in the opening