The roses prefer fresh soil rich in clay and organic nutrients. This is the kind of soil which sticks to the foot when
it’s wet, but otherwise dries easily and when it isn’t too dry or wet, easy to work on. But also, the roses can grow in
any kind of garden soil. They only don’t grow in soil extremely rich in clay, sand or limestone.
According to various studies, the necessities of roses are these:
pH……………….6-6,5
Salt ……………..% 0,2-0,3
N ………………..20-30 mg/100 gr. dry soil
P2O5 …………..50-80 mg/100 gr. dry soil
K2O …………….80-150 mg/100gr. dry soil
MgO ……………15-25 mg/100 gr. dry soil
Mn ………………150-200 ppm 100gr.dry soil
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{ 4 comments… read them below or add one }
Hi again,
I should have read your article above before asking you the following questions (http://www.greenwala.com/blog_entries/352) — sorry about that. It seems like my mother is going to have a huge challenge growing her roses in Colorado soil, which is notorious for being dry and laden with clay:(
You’ve written so thoroughly about everything I could ever want to learn about roses (thank you), but the one thing that you didn’t touch on is how to manage insect infestations WITHOUT using chemicals. Are there any green methods that we can use to protect her roses from aphids and other bugs? I’ve heard of companion planting, where you plant something like marigolds next to tomatoes in order to naturally repel insects — can the same concept be applied to roses, and if so, what is the ideal thing to plant next to them?
I really like having a friend in the agriculture business!! Thanks in advance for your thoughtful advice!!
Good morning Elizah,
Just read your comment.
I had been growing roses in my garden in south-west Germany for years and enjoy them blooming yearly from mid May up to early frost ( in spite of infections like fungus or spiders, etc. and it is a continious warfare to get rid of them). This continuous warfare with pests on the plants makes me
fit I guess, as the roses bloom just as well and May is the loveliest time to enjoy them blooming.
I grow Lavender next to my roses, Sage and Phlox for colour harmony. Spray herbal homemade tea
against lice early in Spring.
I would be glad if you call and if I can share any tip with you. Much thanks to this web site, for the broad
scope of information and assistance.
Chemical warfare must be conducted to fight the pests and diseases. For this, you must be very careful with the general cleanliness of the business. Soil and greenhouse should be disinfected and greenhouse ventilation must be provided, too much moisture is always to be avoided,nitrogenous fertilizer usage should be controlled; attention must be paid to night-day temperature difference.As chemical warfare, especially against several diseases, sulfur based concoctions must be used often i think.
i do not have more info : (
our neighbour started to grow roses, he bought many turkish books about growing roses, and im translating them into english : ) elizah.
Well, I can look into methods for pest control using.. natural methods, but that could prove to be exteremely expensive.
I’ll get back to you as soon as possible.