I will make a soiless medium and try all other ideas but when I transplanted (in well draining medium) my expensive clivia after the winter rest I saw root rot. I would like to know from an expert if an ultrafine endo/ecto Mycorrhizal inoculation will help them. Thank you so much if you can reply with an answer to my question. They are inside plants and get defused light.
It can, but be sure that your soilless media contains nutrients, as well! If there is not an adequate amount of nutrients, then it will make it much more susceptible to disease.
A preventative dusting of fungicide powders wouldn't hurt, either.
Here are some articles that will help:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/mycorrhizal-fungi-information.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soilless-growing-mediums.htm
https://www.gardeningknowhow.com/ornamental/flowers/clivia/clivia-plant.htm
It clumps just like Clivia and after flowering there are bright red berries.
Most likely. There are other species of clivia that have that trumpet shape form.
I have a 25 year old Clivia that I repot every other year, root pruning and repotting back into it's original pot. I thought I was putting it at the same depth, but now wonder! Or perhaps after decades of removing dying lower leaves, I've created a stalk. There is now 3 inches of tightly wound roots exposed above the soil level, growing in between the lower leaves. Can I remove those leaves and repot deeper? I would be devastated to lose this mother plant! Thank you in advance.
It is perfectly normal for the roots to crawl upward. They are just making sure they get plenty of air. You don't need to try to cover them. Just remove any damaged, dead, or excessively long roots above the soil.
Then refresh the potting soil and place the root ball back into the pot, disturbing the roots as little as possible. Clivia blooms better when it's rootbound so you only have to repot every 3 to 5 years.
https://www.gardeningknowhow.com/ornamental/flowers/clivia/clivia-plant.htm
I've been sequestering 'pups'; the kind produced laterally from mature Clivias and wonder whether there's something I should put on the exposed surfaces of the cut, both on the 'parent' plant and the 'pup' to seal them against infection/rot and perhaps help needed new roots to develop. Most made it to healthy independent growth, as I added rooting powder to both surfaces. Should I dry the surfaces? Is there an agent which can promote healing/drying agent/closure? I've thought of trying sawdust, powdered loam, flour, dry sand, etc. Don't want to do anything that will damage the plant at the site od separation. WR
I wouldn't add anything! If you do notice signs of trouble, then add wettable sulfur powder to the wounds, but they should heal on their own. Just make sure not to disturb them often.
I have a new flush of healthy roots which I presume will find their way into the growing medium.Can I pot the plant to half cover them so I don't end up with a long stem with the leaves at the top of the plant like a palm tree? I don't want to rot the base.
Yes, it will be safe to pot up to the roots. This collection of articles will help you to care for the plant:
While saving them is challenging, there is hope. Start by cleaning and trimming the affected areas, removing damaged material. Inspect for Lily Borers and consider using an insecticide containing imidacloprid cautiously. Isolate the plants to prevent the spread of pests, repot them in fresh soil, and provide balanced, diluted fertilizer for recovery. Monitor for new growth, be patient, and consult with local experts for tailored advice. In addition to imidacloprid, potential chemical remedies may include neem oil-based insecticides for a more natural approach.
My plants are outdoors in pots. They were removed from ground because they did not bloom after 2 years. We thought they had too much shade, They also haven't bloomed in pots so I'd like to try to bring in and get them too this year. What fertilizer and soil should they be in? I'm in s'ern CA. Soil is uneven around plants so I'd like to re-plant.
Clivia plants need a rich, well-draining potting mix to thrive. This article about getting clivias to rebloom should help:
https://www.gardeningknowhow.com/ornamental/flowers/clivia/getting-clivias-to-rebloom.htm
https://www.gardeningknowhow.com/ornamental/flowers/clivia/clivia-plant.htm