My hibiscus leaves have on black spot at base of leaf (underside) what is it? Is it something to be concerned?

On some leaves of my tropical hibiscus plant, on the underside, right above where the leaf meets the stem, there is a small black dot about the size of the tip of a marker. Not all leaves have this. Should I be concerned? Are there actions to be taken? The plant is 14 weeks old (says on the pot), no blooms or buds yet.





I looked up "black spot" and it doesn't look like that. There are no other black spots on the leaves.





My boyfriend gave me the plant yesterday. I am very new to gardening and don't even know what to do with a plant when I first buy one.

My hibiscus leaves have on black spot at base of leaf (underside) what is it? Is it something to be concerned?
I don't know where you live, but hibiscus do not like the cold, if it drops leaves, that will not mean it's dying, new leaves will come out again when it's warm enough. Is a very young plant and has not put down long enough roots yet. If you expect another cold snap below 50F I would wrap it with newspaper to protect the plant. When you buy a new plant take it out of the pot carefully and inspect the roots, making sure it is not infected with bugs, then repot it in your own mix if you intend to keep all of your plants in pots. With the same soil, you can water them all the same. If it is a plant that must be kept dryer than the rest use a smaller pot because it will dry out faster. Or you can can some pumice or perlite into the soil for better drainage. Don't use peat moss in any soil mix, it attracts sciaria flies (a small fly which places its eggs in moist humic composts where the developing larvae feed from decaying organic matter) and thus larve which can hollow out the whole body of a succulent plant. They love peat moss. Norma
Reply:I don't know either the name but I use a sprayer with some soap and then hose it down to get rid of them.


Hibiscus need full sun all day, a well drained soil and fertilize with Dynamite twice a year...slow fertilizer that won't burn the plants. Good Luck!





In my corner as soon as the heat start the bloom start to pop up everyday.
Reply:it sounds like sooty mold but i'm really not sure.get some bayer insecticidal soap and spray it on the plant it certainly won't hurt it.


the 12 things i can tell u about hibiscus is they do not like water, make sure it is dry between waterings and they bloom on the tip ends of the branch and if u trim it , u will b cutting off the buds.


2 other things, they love full sun and if u r up north , bring it in when the temps get cold below 40 or lower.