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Avatar for Tq0bv95
Jul 19, 2020 12:33 AM CST
Thread OP
Sydney
Hi everyone,

I am in Sydney, Australia. I guess in zone 10? While other roses are sprouting, this rose is shredding leaves like the picture below. It's a gold bunny. Any idea about this rose? Is it because overwatering or something else? What could I do to save this rose?
Thumb of 2020-07-19/Tq0bv95/572392
Avatar for luis_pr
Jul 19, 2020 3:38 AM CST
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Azaleas Salvias Roses Plumerias Region: Northeast US Region: New Hampshire
Hydrangeas Hibiscus Region: Georgia Region: Florida Dog Lover Region: Texas
It seems to have black spot, a very common fungal disease that defoliates roses. Make sure that you are not watering the leaves as that promotes the spread. Water the plant if you insert a finger into the soil to a depth of 5-10cm and it feels dry or almost dry. Make sure the drainage holes allow excess water to drain when you water and do not let the saucer collect water. Reuse excess water thru the same plant again or in another one. Infected leaves can be bagged up and thrown in the trash. This problem is so common that you should be able to visit most plant nurseries and ask for black spot fungicides.

https://www.thespruce.com/prev...
Avatar for Tq0bv95
Jul 19, 2020 5:11 AM CST
Thread OP
Sydney
Thank you so much for your reply. I was just not quite sure that's black spot since it just started growing leaves...
Avatar for luis_pr
Jul 19, 2020 6:29 AM CST
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Azaleas Salvias Roses Plumerias Region: Northeast US Region: New Hampshire
Hydrangeas Hibiscus Region: Georgia Region: Florida Dog Lover Region: Texas
If you are concerned about watering, use the finger method. Insert a finger into the soil to see if it feels dry or almost dry. If it does, water it well. Then with some regularity, check that the pot is draining well thru all the drainage holes and do not let the water remain in the saucer.

The plant may leaf out to replace fallen leaves if conditions are adequate including sunlight. If it is too hot or too cold, it may go dormant until later. Since its root system is different than those of the other roses, it may display more or less vigor than the other potted plants nearby.
Last edited by luis_pr Jul 19, 2020 7:16 PM Icon for preview
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Jul 19, 2020 6:50 AM CST
Port d'Envaux, France (Zone 9a)
A Darwinian gardener
Can you provide more info about the conditions in which the rose is grown? Potted, clearly, how long? Orientation? Hours of sunshine, indoors, outdoors? Watering and feeding regimens? The more info the more precise people can be in offering advice.
I find myself most amusing.
Image
Jul 19, 2020 11:33 AM CST
Name: seil
St Clair Shores, MI (Zone 6a)
Garden Photography Region: Michigan Roses
Is that pot indoors? I know it is your winter there but I don't know how cold your winters are. If it is not too cold get it outside. Roses make terrible houseplants! No saucer underneath and good drainage holes is best. Put it in full sun. Roses need at least 6 hours of direct sunlight to thrive.
Image
Jul 19, 2020 12:14 PM CST
Coastal Southern California (Zone 13a)
What Seil said.
Avatar for Tq0bv95
Aug 13, 2020 3:15 AM CST
Thread OP
Sydney
Thank you guys, I cleared the drainage. It's much better now
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