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I recently purchased a tropical hibiscus and it had flowers and buds. I want to know if after the flower drops off, should I pinch back the end?
You can, but it is not necessary.
I’m looking after my neighbors tropical hibiscus which she transplanted into a bigger pot last November. This plant is in a glass roofed sunroom and I been noticing in the last month the leaves have turned brittle and have nearly all fallen off. I realise the extreme cold winter weather is not a favorite of this tropical plant. I tested a small branch and it is not dead, even though it looks like it is. My question is what can I do too help this plant recover, or will it die because of the freezing temperatures?
I believe the following article addresses your question: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-leaf-drop.htm
My tropical hibiscus has several branches growing from the main trunk. Are these considered suckers and should I trim them or are these a good thing? I just got the plant this year and besides a few yellow leaves it seems pretty healthy.
Without a photo we can only guess and generalize.
Branches growing from the main trunk are not necessarily suckers, and may be just natural branching that should be preserved and not removed.
If you mean that there are multiple shoots coming up from the same area at the low point just above the soil level, then those might be considered suckers, and maybe they should be thinned or removed.
