Roses forum: When to plant roses in zone 4b

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carolremingt
Apr 6, 2017 4:57 PM CST
Hi, I have bought some roses and they are starting to leave out in my garage! One even has a bud on it. When is it safe to plant them?
Carol
Name: Meri Taylor
SD (Zone 4b)
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mnmat
Apr 6, 2017 5:45 PM CST
Carol, where are you? Is your garage heated? What are your evening temps? I'm in zone 4b in South Dakota where its been in the mid 60's but freezing temps at night. I would need to wait until the night time temps warm up some. My 4b weather might be different than your 4b weather.
Meri
Name: Suzanne/Sue
Sebastopol, CA (Zone 9a)
Sunset Zone 15
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Calif_Sue
Apr 7, 2017 12:52 PM CST

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Minnesota (Zone 3b)
RpR
Apr 8, 2017 11:46 AM CST
Wait until the ground is warmer and absolutely ZERO chance of frost.
I have planted roses in cold wet weather and they did fine but I am not going to tell you to try it and see what happens, although wet weather is better than dry.

I was going to uncover my roses in southern mid-Minnesota but I was surprised the other night when the heater came on at night.
I found out it had gotten down to 26F.
Are your roses potted or bare root?
If bare root , keep the roots moist , I use water treated with a vitamin B product and set them in a large container, it held five or six at a time, with in wood mulch. (That was back when I used Eucalyptus wood mulch.
If potted keep them moist, or on rare occasions I have repotted them to a larger pot, adding garden soil, which I set in a leaf mulch pile, it is 4'x3' and from 36 to 48 inches high, until I could get time to plant them.

While you wait, treat them with Serenade, Sonata or some other biological anti-black spot product.
I soak them with it, submerge entire pot in a bucket of it; I learned the hard way roses from green houses OFTEN have black spot.
[Last edited by RpR - Apr 8, 2017 11:50 AM (+)]
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