Plants outside? Mist them!
If your plants are outside and you're not misting them, you'll be astonished at the results if you do.
Misting Osmanthus produced more new growth, both at the tips and along the stem. It also brings on flower buds. The effect of misting is most marked on this one.
Gardenias, jasmines, aglaia, michelia figo, artabotrys-- misting these regularly produces new growth along the stem.
Try it, you'll be delighted. Takes maybe three weeks to start to see the little nubbins of growth begin.