My new patio rose’s leaves are yellowing. I don’t want to lose this baby Any insight appreciated Southern California patio
I believe it’s heat related. Does sun shine directly on the container in which it grows? How much direct sun does the hardscape behind and under it receive? Those surfaces are passive solar collectors which reflect and radiate heat far longer than the period the sun shines directly on them. Sun shining directly on the pot sides physically cooks the roots, heating the soil inside and cooking out the soil moisture. The use of inorganic fertilizers in containers in hot periods can easily exacerbate the issue by causing them to break down faster in the irrigation water, over dosing the soil ball with too much “salt”. I don’t know what your watering schedule nor ferilizing routine are, but I would move the pot so there is at least three feet between the pot and plant and any walls the sun shines directly on to reduce some of the potential heat reflection/radiation. I’d also watch the water to insure the soil remains moist and the drainage allows the water and any dissolved salts from the water, fertilizers and soil to flush out instead of building up in a saucer or slow drainage. Think of a pot of soup simmering away on the stove for hours. As the water is boiled down, the saltiness of the remaining liquid increases dramatically. It’s particularly damaging to house plants where the irrigation water is allowed to drain into a saucer to evaporate, leaving the “salts” behind.The “damage” in your photo appears cultural and due to conditions instead of any “disease” issue. Container growing in heat can be a real “joy”. I did it in the Santa Clarita and San Fernando Valleys for over 50 years and am now doing it in northern Santa Barbara County. Even here were we have nowhere near the heat Southern California experiences, containers can be problems when the sun shines directly on them and the ever-present winds desiccate them very quickly. Good luck!
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How often are you watering? Might be a lack of water problem. What have you used, if any, fertilizer or other amendment recently?
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Thank you I’ll try moving it now it’s actually new to me so I haven’t fertilized it
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Good. When you decide to fertilize it, you may want to use a water soluble type. It’s easier to safely measure and apply water soluble to pots than it is pelletized types. You likely already know to water well the day before feeding, then apply the appropriate amount of fertilizer so the plant is full of water prior to adding “salts” to the soil. Pelletized types can be dangerous because any clumps of those pellets resting against the shank or trunk of the plant can quickly burn it and dry it out to the point of killing it. It’s a bit more work, but I prefer watering then applying water soluble, “weekly, weakly”. Instead of a tablespoon per gallon of water every other week, I feed half strength, weekly. “Weakly, weekly”. You can always add more but removing any is impossible. If you choose to use pelletized, solid fertilizer, use it sparingly as heat breaks it down much more quickly, and make sure none of the pellets physically touch any parts of the plant as they can quickly cause “salt burns”.
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I agree with the previous rosarians. But is it possible you also have spider mites. They love hot and dry locations. Look on the back of the leaves for a sticky web.
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Agreed. If you find there are spider mites, buy a water wand like this… https://www.lowes.com/pd/Melnor-RelaxGrip-1-Pattern-Shower-Wand/5015616681?store=&cm_mmc=shp-_-c-_-prd-_-sol-_-ggl-_-PMAX_SOL_000_Priority_Items-_-5015616681-_-online-_-0-_-0&gclsrc=aw.ds&gad_source=1&gad_campaignid=20288278738&gclid=CjwKCAjw9uPCBhATEiwABHN9K4ZztbBlnYgiRdH9gakBE2maNZ6wiqmyiXYtoQPLTrhXwtrWEX9pwRoCENYQAvD_BwE
Dramm makes a good one, too. It’s convenient to have a cut off at the handle so you can turn it off while moving to the next plant. Rinse off the under sides of the foliage and they will quickly leave. It may require several washes but you’ll remove their webs and any honey dew (their sticky residue) and the rose will love the bath.
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That does not in any way look like Spider mite damage. Leaves with spider mites have a mottled look. Yellowing leaves almost always indicate some sort of stress, heat, too much water, not enough water, etc. There’s been some good advice already given, so I won’t repeat it.
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Unfortunately, it’s doing much worse since I’ve moved it. I don’t think I’m gonna be able to save this.
Are you able to take clear photos showing its position in relation to other surfaces around it? That may help the rest of us to diagnose what may be going on. Have you fertilized or sprayed it with anything? Have you checked the drainage to insure water isn’t trapped causing rot? Does it drain out on to the surface it sits on or is there a saucer under it, trapping the water under it? That can result in water logged, rotting soil (which can appear as if the rose is drying out) or salt build up from the water evaporating from the saucer leaving the natural dissolved minerals to build up to eventual toxic levels. That can also mimic drying out or burning symptoms. It’s very difficult to hone in on a probable cause from must symptom photos. Being able to see the plant in relation to other surfaces around it can help. You may also want to use a bamboo stake to slip into the soil ball then smell the bottom end to see if it simply smells like damp soil or if it smells “sour”.
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She doesn’t sit in a saucer
Our temperature has been in 80’s
She’s in the shade against interior wall
I moved her from a reflective space
Was this a grocery store mini purchased from inside the store? How large is the pot? Does the water drain out of it on to the surface the pot sits on or does it drain into a saucer beneath the pot? The rose needs some direct sun, however the pot should be shielded from hours of direct sun shining on its sides or it may cook the root ball. You can take card board and shield the pot from direct sun while allowing the top growth to receive the sunlight. It should be at least three feet away from one of the walls to prevent it from being cooked from the reflected, radiated heat. If this is a 6" or smaller pot with an indoor/greenhouse raised mini and it was placed out in the sun after purchasing it from the store, that could well be the problem. Green house conditions are mild - higher humidity, less intense, hot sun and milder temperatures. Moving it from those kind of conditions into the outdoors with its more severe conditions is like you going outside after being inside all winter and getting sun burned. There are just too many questions remaining unanswered to make any kind of helpful diagnosis or suggestions without those answers.
Purchased from Home Depot
Pot is 12”
It drains - no saucer
Placed in indirect light after purchase to try to minimize stress
No direct sun on the pot
Trying to answer all the questions.
Water is filtered not treated
No added fertilizer
Patio is small so 3’ from a wall isn’t possible but it’s not near a hot or sunny wall
I think it’s lost at this point
I truly appreciate the offer of advice from all
Maybe the pot is too small? If it is, it could be rootbound.