Ailing house plants - Ailing Houseplants

Posts: 41
Ailing house plants
I have a west-facing greenhouse wall containing several large house
plants: Rubber plant, Schefflera, Dwarf Schefflera, Dracaena, and
self-heading Philodendron. I've had them all for several years but his
Spring several seem ailing.

The Schefflera is dropping leaves, but from the bottom and the new
growth seems OK. This may be normal, but I've not seen it before. The
Dwarf Schefflera, on the other hand, is dropping from the top. The
branches are bare, the stems are still green, but I can't see any new
growth.

The Philodendron's old leaves are yellowing and dropping, new growth
leaves are much smaller. Overall, it seems limp and droopy. Maybe it
needs more sun, but it hasn't in years past.

I just repotted the Dwarf Schefflera and Philodendron yesterday and
neither was severely pot bound. I've been feeding them Miracle-Gro
every two weeks since new growth started. They are neither over nor
under watered. No sign of insect activity. Rubber plant and Dracaenas
are fine.

Are these problems, or just a normal phase?

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