As best I understand it, woody die-off is fairly common, even if you're seeing new growth on it. If you know for a fact some of the stem is dying, cut it back, so the plant can focus its energy on the healthy growth.

Your plant could be suffering from a nutrient deficiency. I'd suggest fertilizing the pot and not the leaves at(least) 1/2 strength to start, then up to 3/4, or even full strength by the height of summer.

Personally, I fertilize directly into the pot/soil with a strong solution. Brugs suck it up. Outside of maybe double-strength, I'd think it's tough to overfeed them in the prime of the growing season, so long as there's enough water to between feedings.

If you're going to foliar feed, try doing it in the morning. Plant leaves are more susceptible to foliar feeding in the morning, as that's the time of day they'd be absorbing dew. After an hour you can rinse them off. Again though, I'd suggest feeding the soil as a change of pace to see if that improves things.

If, after a weeks' time your plant hasn't improved, unpot it and check how extensive the roots are. You might need to pot up.

Mike

Hi Mike. Thank you kindly for your reply & suggestions.

I tried fertilizing directly into the soil instead of foliar feeding & my Frosty Pink seems to prefer it so that's how I'm going to feed her :). She's doing phenomenally, even noticed there's a bud coming - unfortunately my little Charles Grimaldi is still pale green with yellow veins :(. I checked his roots (they were nice, white, & strong) but he was root bound so I potted him up & have him sitting in filtered sun. No change in his condition though. I'm going to post a better picture of him in another post & see if anyone can help diagnose what's going on with him. Again, much thanks & appreciation!