Roses are gorgeous. I miss growing hybrid teas but the humidity and black spot is not worth all the work involved in keeping them beautiful in my region. My trees had the black spots too last year. I think it's a fungus. I haven't seen it again this year yet. Maybe rain related. I think the poor coloring of your citrus is from lack of fertilizer.

Definitely fertilize, more and more often. And make sure your fertilizer has iron and magnesium.

ph problem? may need to acidify

The Jack's Pro says it has three sources of iron as well as magnesium, but I will increase the frequency! Ph problem would be a new one for me! More details please, jaydub!

KC

If the ph is too high, iron and manganese get locked out and the plant will show deficiency even though its present in the soil. Those deficiencies will show up on young leaves since those elements are not mobile in the plant like nitrogen.

Also the holes in the leaves makes me think iron or manganese deficiency in addition to the chlorosis.

Ok, thanks! That was very clear and easy to understand. I have some soil acidifier for my hydrangeas, I can add that! I do cast my coffee grounds around this area, but I guess it isn't enough!

the coffee grounds thing appears to be a myth from what ive read. Im battling some ph problems as well and im testing out sulfuric acid (drain opener) so time will tell how that works out.

Elemental sulfur is probably your safest bet. I would check to make sure your hydrangea stuff isnt aluminum sulfate, which may be safe for edibles, and it works quicker, but i wouldnt want any aluminum toxicity problems.

Thanks, Jay! It says hydrangeas and blueberries and says safer than Aluminium Sulphate on it. Stay tuned :)

KC

I use elemental sulfur on my blue berries. They'll look just like your citrus tree if I don't. My citrus trees have a little problem with PH. I am using 3-2-1 with out any lime to insure enough acidity.
Steve

Thanks Steve! That’s two votes for sulphur! Will get some!

Nik, it's right next to a low wall made of stone and concrete. I have a fair bit of traveling ahead, so I think i will throw some things at it for now :) and come back to do as you suggest and have the soil tested. I assume there's a kit for that somewhere out on the internet?

KC

There are, but its probably easier and more accurate to send a sample to your local extension. It shouldn't cost too much, mine is $16 for the full test. They will give you suggestions on how to improve the soil based on the test results.

Also I think nik made a very good point, your concrete structures are definitely something to take into consideration.

Looks like you have a root problem... most likely too wet. It is a small tree; I would take it out and replant on a mound to improve drainage.

Oh dear, John. I tend to leave the end of my hose there, trot to the faucet to turn it on, trot back to pick up the hose and water the pots, then drop the end there with water pouring out while I go turn the water off! I never thought that it might be too much water! I will move the hose end to the grass on the other side of the little wall there!

KC

Sorry your Rangpur isn't doing so well :( there have been a lot of suggestions to help out your tree. I'll be interested to hear what's mainly causing the tree to be unhappy. Your experience with this will undoubtedly help me narrow things down when I experience the same in the future

By the way, those roses are gorgeous. Of course you'd want to show them off :) I don't often see rose colors that I absolutely love but this one I really do! Do you know what variety it is?

Kvetch, it's called Bronze star, it's a hybrid tea! Come over to the rose forum sometime :) meanwhile here's another beauty for you. It's called Distant Drums, blooms pale pink outside with a pale tan interior!

Oh my goodness Distant Drums is also so gorgeous. Lately I've been looking at rose bushes during my walks in the neighborhood and everyone needs a bit more color to their roses than just the neon reds and pinks! Thanks so much for letting me know the cultivar names! I'll prob end up hopping over to the rose forum someday when I buy that one gateway rose lol

Lately I have been seeing brown spots on my trees as shown and in other people's photos online. What is the cause? I am thinking humidity from rain. With Alberto coming this week, I am wondering if it will cause more spotting to a lot more citrus trees in the near future.

I used to be big on growing hybrid teas and would only purchase those with a strong scent. It seems that is not scent is not as desirable a trait like it used to be. So far, nothing beats the Double Delight in my opinion.

Denise, mine are chosen more for scent than color, for sure! Are the brown spots rust?

KC

Denise,

Hybrid-T's are infamous for lack of smell; if smell is important, better look for a Grandiflora variety.

I grow at least 30 different scented HT roses amongst over 300 different varieties of roses of all types in my garden.. Almost none of my roses are scentless.

I have had roses for years and there are lots of varieties of HT roses that have a scent, but I find they are hard to find at the big box stores. I find mostly the Knockout Roses which are fine if you want low maintenance and I do. lol. I have learned that mail order retailers are the best resources.

kcandmilo, I do not know what the spots are. I took some leaves that had spots into the local ag extension office last October and they said it's sooty mold which I know it's not. The person who works there is incompetent and I'll not go into the details as to why. I would be writing a book to do so. lol. If the spots show up again on my trees in larger number, then I will take more leaves into the ag extension office and request a citrus expert examine them.

nik, I second your experience. I have many hybrid teas which are highly scented. But Denise, yes, they did not come from big box stores. I am very fortunate to have several very decent nurseries near me which stock heirlooms, English and all kinds of roses!

KC