What is causing these brown spots on calathea?
Maria Elena (Caribbean - USDA Zone 13a)
6 months ago
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ken_adrian Adrian MI cold Z5
6 months agoMaria Elena (Caribbean - USDA Zone 13a) thanked ken_adrian Adrian MI cold Z5Related Discussions
What is causing brown spots on my Ensete? (PICS)
Comments (2)I have sort of the same problem. One of my younger ensete is in a huge pot, like 2 others, and it is getting these areas of burn or sick patches. I feed them well, they are in high quality potting mix. The get plenty of water, (I have a drip irrigation system) and full sun. I have one here that's 12ft tall-it's her 3rd summer on my deck. The other two are smaller-I bought them on line this spring. I can't find any info on diseases of Ensete Murelli....See MoreWhat is causing brown spots on my willow tree leaves?
Comments (2)Willows - Salix species - are prone to a host of fungal and insect issues but few that bother foliage enough to be a concern. Too often folks freak out about leaf spotting or minor insect issues and rush to spray something........usually unnecessarily. Plants get problems and blemishes - pretty much a fact of life and the natural course of events. At this time of year, as ken notes, there is nothing you need or should do other than clean up fallen leaves and discard....See MoreWhat is causing these brown spots/speckle on my rubber tree?
Comments (20)Josh - The plants I have under lights for the winter get fertilized each time I water with 1/4 tsp of FP 9-3-6/gallon of water. When I water, about 10-20% of the total amount of water I apply exits the pot. If your plants are getting natural light and you think they could do with more, you might try fertilizing at the strength I mentioned, then water twice so you're flushing the soil, then repeat.At these low doses, there isn't much concern about over-fertilizing unless the soil is VERY dry. I'm watering well before there are any indications of drought stress, and have seen 0 indication of plasmolysis in any of the plants. Keep in mind that plants make their own food - glucose. Fertilizers are the building blocks they use to grow and keep their systems orderly. Charles - There is a difference between air movement and a cold draft or a hot wind. Air movement upsets the boundary layer (of air) surrounding the leaf and increases transpiration. This means that more nutrient solution is moved through the nutrient stream - generally a good thing. Air movement can also have a significant impact on keeping pests and diseases in check, and it helps promote back-budding. On the other hand, if your plant's ability to move water to distal parts is limited by poor root function/health, air movement can be a negative insofar as the plant's appearance goes, because increasing water demands combined + an inability to efficiently move water to the plant's distal parts will produce more necrotic leaf margins or tips. I have 2 - 20" box fans (set to low speed) in my grow area + a 12" round fan blowing over a plastic cake pan cover ($1.50) that holds 2 gallons of water with humidifier wicks in it to increase humidity, which really decreases the humidifier's run time. Too, MG soil has water retention issues you need always consider because of how water retention impacts root health/function. How much/often you water is always a consideration when you're using a water-retentive medium. Al...See MoreWhat is causing brown spots on Monstera Deliciosa
Comments (0)What is causing these brown spots on my Monstera Deliciosa? I checked for pests and didn't see any. Any info is appreciated!...See MoreMaria Elena (Caribbean - USDA Zone 13a)
6 months agotapla (mid-Michigan, USDA z5b-6a)
6 months agoMaria Elena (Caribbean - USDA Zone 13a) thanked tapla (mid-Michigan, USDA z5b-6a)Tiffani Tesch
4 months agotapla (mid-Michigan, USDA z5b-6a)
4 months agolast modified: 4 months agoMichele Rossi
4 months agoTiffani Tesch
4 months agotapla (mid-Michigan, USDA z5b-6a)
4 months agoMaria Elena (Caribbean - USDA Zone 13a)
4 months agolast modified: 4 months ago
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tapla (mid-Michigan, USDA z5b-6a)