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Initial post
13 FEB 06 by
Marta
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My husband built for me a fully insulated, well drained wooden container that is 6 feet wide, by 2 feet tall, by 2 feet deep. He attached a trellis at the back of the container that is 8 feet tall (and 6 ft wide, same as the container). I want to plant a climbing rose in it and I am trying to decide which variety wil be best. I want a climber that is hardy enough to withstand the canadian winter (I live in Toronto). I also want a variety that is a repeat bloomer and that has a nice fragance. But at the same time, it needs to be a variety that will not grow out of bounds. I have been doing a lot of research and I came across two varieties that seem to be what I am looking for: Compassion and New dawn. I would like to know which of the two you think it would work the best, or as I am not an expert, if someone has any suggestions as to a better choice, I am eager to listen. I have succesfully grown roses in containers before (the oldest one I have is 6 years old) but never a climber. I would appreciate some advice. Thank you!!
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Marta..........
'Illusion' and 'Sympathy' both will do well in your cold climate. However, both are big roses. A rule of thumb is that the root system will be as large as the top growth. Therefore, climbers generally have large root systems. From the description of the container your husband built for you, you may find that the plant becomes rootbound with only a 2' depth. However, you do live at a more northerly latitude which indicates you have a shorter growing seasons. Both of the roses recommeded above are solid plants and have had good reports about growing with little winter protection in Canada.
Good luck with your roses.
Smiles,
Lyn
helpmefind.com
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Reply
#4 of 2 posted
19 MAR 06 by
Marta
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Thank you so much!!!
Both are beautiful and I already found nurseries that carry them both. I truly appreciate your advice.
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Initial post
13 FEB 06 by
Marta
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I do not have a backyard, just a big deck, so all my plants are grown in containers. My husband just built me a huge, fully insulated, well drained container. The measures are: height: 2 ft, width 6 ft , depth 2 ft. He made a trellis attached to the container at the back that is about 8 ft tall. I believe that container is big enough to plant a climbing rose in it. I have succesfully grown roses in smaler containers, but never a climber.
I would like one that is hardy enough to withstand the Canadian winter (I live in Toronto) and that will not grow too much out of bounds. One that blooms repeatedly during the summer and preferably, one that has a nice fragance. The two varieties that so far seem to match my preferences are the Compassion and the New Dawn varieties.
I would like to know if you think that container will be enough for the rose, and which of those two (or any other variety you recommend) should I choose.
Thank you!!
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A couple of points about new dawn.
1) If the rose is infected with a virus (in other words it was propagated from another virused rose or was grafted onto a virused root stock), it will have more disease problems and wont be as vigorous as many are used to. Get your rose as guarenteed virus free.
2) I have friends in South Africa who say that New Dawn is the absolute best rose for their climate. Another friend in Maryland has seen a New Dawn that was no more than 10 feet tall but may have been 40 feet wide.
Most roses will behave differently in different climates. Properly cared for with a half days sun, good drainage, a quality soil and adequate irregation (disease is usually indicative of stress caused by lack of one of these) a virus free 'New Dawn' has proven itself in many locations all over the world since it was first introduced in 1930.
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In responce to the question concerning new dawn in containers I can only reply that here at the flowering shrub farm we specialize in growing disease resistant shrubs including roses in containers. Three or four things are important about containers for growing plants in cold areas. They must be large. The soil should be in contact with the subsoil (under the pot), so that warmth can be conducted into the container (so dont hang it in the air, mount your contaner on a pallette or insulate it from the ground). The rose can tolerate having its roots frozen but they shouldn't remain frozen for to long. If the container of soil becomes a block of ice all winter long your rose will probably suffer. I dont usually grow new dawn into containers in zone 5 or colder until its large enough that we have to pot it into a 7 gallon. thats usually indicative of at least a 3 or 4 year old. We pot in spring and fertilize with 10-50-10 till it has become established.
If you plan to hang a container in the air, I would suggest you install some sort of bottom heat. In propagation there are all sorts of heating devices so it allows us to use unheated greanhouses and yet maintain our plants on benches with bottom heat. The cost would be greater to heat all that soil as well. The hardiness of the roots of your rose are probably 40 degrees less hardy than the stems. Get an indoor outdoor thermometer and bury the sensor between 6 inches and a foot deep. Note the air temperature and the soil temperature each day. In zone 5 Voorheesville, NY when air temperature has been at 20 below 0 for 5 days the soil temperature 6 inches down is 20 above 0. After 6 days at that temperature the soil will be a little colder etc. In a pot the soil gets colder faster. I would say that if the soil in your containers goes below the minimum of 20 above you will nead a bottom heat source.
Andy Van Cleve
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