Help please! Echeveria Chroma leaves turning yellow and falling off
5 years ago
last modified: 5 years ago
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- 5 years ago
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Ficus lower leaves yellowing and falling off
Comments (5)Sorry about accidentally sending the above before I finished proofing it - it should have read: Well, there is an abscission zone at the base of each petiole (leaf stem) that allows water and nutrients to flow freely from roots to leaves and for photosynthate (the plant's true food) to flow freely from leaves to sinks (areas in the plant that are "calling" for more food so that they can grow or store it for further use). There is a growth regulator (or hormone), auxin, produced as a product of plant metabolism, primarily in the apices (growing tips of branches) and leaves that must flow across the abscission zone to keep it open. If photosynthesis/metabolism is slowed due to a decrease in photoperiod or light intensity, the flow of auxin is slowed and a corky abscission layer forms at the base of leaf petioles. This corkey layer is impermeable (a barrier) to the flow of water/nutrients and food, so the leaf dies and separates from the tree at the abscission layer. This is part of the mechanism by which deciduous trees' leaves change colors and then fall (abscise/abscission) during autumn in temperate regions. We frequently talk of leaf abscission in Ficus trees as if it's a great mystery, but technically, anything that slows photosynthesis and the flow of auxin can cause leaf abscission. Chill (particularly sudden chill), lowered light levels or exposures, wet or dry soil, and other stress agents that affect photosynthesis all cause leaf abscission. Often, people will tell us that any cultural change will cause a Ficus to shed foliage, but not so. Changes like increased light, warming temperatures (when it's been cool), better soil, etc., things that make the plant want to grow with better vitality, do not cause leaf loss. Improving conditions will encourage better growth and more biomass. Al...See MoreAll of a sudden leaves turn brown and fall off
Comments (4)I alternate between a couple of them; always with added vinegar due to my irrigation water pH of 9+. Most often it is Liquid Gold (Master Nursery/EBStone) [15-6-3] Then, Foliage Pro [9-3-6] And lastly once every 2 months (and because i bought a bunch of it years ago-cheap) Miracle Grow - very weak solution. this is not a cheap method, but its the only way i have found to feed the citrus during the heat season and keep it growing without using excessive water. [there are improvements and changes that i need to make to the irrigation, but unable to attack that project at this time. So i am stuck with what i have for now]. I used to mix it all in a watering can and apply to pre-wet soil. I mixed for a 1 gallon amount, but in a full 1.5 gallon can (so a bit weaker solution). 1 can per tree (or more if taller than 6ft.). Today i tried a sprayer and believe it worked well. I used a Hudson hand-held sprayer that has a metering knob. I could turn the liquid addition off, and then adjust up to 1 Tbsp /gal. This turned out to be a much faster and more convenient method (45 citrus trees) so i think i will stick with it. -George...See MoreHelp! Adenium leaves yellowing, browning, falling off! See Photos
Comments (1)Hard to tell with these without being there and knowing the species, but when I grew them I used terra cotta pots for the gas exchange and so the soil wouldn't get too wet. To me, with info provided, my first guess would be too much water. Since you don't say where you consumed this product and in a plastic pot, no guarantee that the plant isn't asking for something different. And hopefully you aren't consuming fossil fuels to maintain that temperature in the entire envelope. Dan...See MoreLeaves are falling off my Echeveria
Comments (5)Get it out of the container; shake off all the soil from the roots, hopefully there are roots left. Let it dry on some newspaper or kit. towels. You need to check if the stalk/stem is firm. If it is very soft or mushy, there may not be any chance of plant surviving. Never use containers without drainage holes, and the potting mix should be grittier - fine soil (even cactus&succulent soil sold in bags) is very water retentive and plant sitting in that kind of soil usually rots rapidly. If you have only that kind of soil, buy a bag of perlite. It is best to sift the perlite to get rid of dust. Mixing perlite 50/50 with soil (could be more perlite), will help somehow. Soil should dry out between watering, but not only on surface but around the root ball....See MoreRelated Professionals
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