continues to remain healthy? Currently, the plant is in great health. It is approximately 42 years old and has extreme sentimental value. Thus, I am seeking any/all alternatives/tips to ensure it's survival. On a side note, I think it was my dog who chewed on it, has not done it since and my dog did not suffer any health issues. Thank you in advance for any help provided.
I suggest cutting it off near a node above the chewed part and rooting it for a new plant.
https://www.gardeningknowhow.com/houseplants/dumb-cane/propagating-dieffenbachia.htm
Will roots begin in water, so I don't need all the medium and hormone you advise? I am going to give away the cuttings and don't want to do all you recommend.
They might. Doing the recommended will increase the chances and number of survival and surviving specimens.
Basically, you aren't guaranteed cuttings that will root, but the more steps you take the more you increase that chance from very low to much higher.
Here are some more articles on the plant that you will find useful:
Plant is too high. New small trees are growing in the same pot.
You can air layer a new plant, then cut the main plant almost to the ground for new growth.
https://www.gardeningknowhow.com/houseplants/dumb-cane/growing-dumbcane-dieffenbachia.htm
The leave were healthy and green, but separating from stalk. I removed them completely. Was this the right thing to do? Other than only 2 leaves turning brown in the 2+ years since I rooted the stalk, there have been no leaf issues. A few weeks ago I found the plant beginning to “lean” precariously and I “staked” it with small bamboo sticks. Is all of this normal or should she be repotted, cut back, fertilized, or something else?
This sounds like an issue with the plant being rootbound in its pot. This can be corrected in one of two ways. The best way is to repot in a slightly larger pot while gently shaking away old soil on the outside of the root mass and refreshing with new soil.
The more invasive way will be to remove the bottom 1/3 of the root mass and plant back into the container with fresh soil at the bottom. I do not recommend this for the species in question.
https://www.gardeningknowhow.com/houseplants/dumb-cane/growing-dumbcane-dieffenbachia.htm
Hi for a 2nd time I have what looks like a'' bean'' growing a few in each of them . I thought the first time it was a flower? but no it rots away hangs down looks awful then and cut it off . Or is it to be put in a new pot and grow a new 1 ?? The florist does not know ? In the summer it is out in my backyard from May till October .grows very well and a lot got ''Baby '' plants from the 1 I bought 20 years ago :).
It does appear to be a flowering stalk, but if it rots off, I think that it may be related to disease. I wish I could see the damage as it is happening. That would be helpful to make an assessment.
Unfortunately, most of the symptoms and causes overlap. It will be up to your judgement to know which way it, likely, leans towards.
Over and underwatering, being too cramped in its pot, stress, and bacterial infections are most common. If the plant has never been fed, then it may be time, or time to refresh the soil. Most of these can be checked and verified.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/making-sure-soil-drains-well.htm
has it gone mildly already? What do I do? Plant otherwise healthy - the particular spathe opened very briefly, and then reclosed. 3 other spathes seem to be white - not fully opened yet.
I did some research and the first time the spathe opens the flowers should be off white. The top flowers are male and the female flowers are at the bottom of the spadix. By the time the spathe closes, the male flowers are browning.
You might try giving your plant more light. That might help the flowers stay whiter longer. The plant can take part sun, but not full sun.
https://homegarden.cahnr.uconn.edu/factsheets/dieffenbachia
https://www.gardeningknowhow.com/houseplants/dumb-cane/growing-dumbcane-dieffenbachia.htm