If you can move the planters, then bring them in to an unheated garage, shed or basement.
Why unheated?
Because you want the rose to stay dormant during winter and placing it in a heated room will wake it up. And once woken up it will need sunshine and since it’s too cold to put the rose outside….. well, you get the picture.
Simply wait for the rose to go naturally dormant and when that first deep freeze is forecast, like 25 F (-4 C) or below, go ahead and bring it inside. Once inside don’t let the soil dry out but don’t water it regularly either. Since the rose is dormant it won’t be taking up water. Just make sure the soil remains slightly moist and you’ll be fine
Come spring when the rose starts to wake up take it back outside. If you get an unexpected late spring freeze bring it back inside or just throw a blanket over it.
Yes you will need to mulch heavily around planter bottoms maybe even using topsoil & leaves added to the straw,put it on top of tarp spread around base of planters on ground/patioso you don't have huge mess to clean up after winter.What are the planters made of plastic,cement,wood? this matters too because this will determine how much cold gets to root system or if they will crack from freezing moisture. Might want to add blankets over pots then mulch piled on top. Get plant dollies for your containers so you can move them easily if needed,even if you don't have somewhere(garage)to put them in, up around house in sun would help and maybe need to consider just putting them in ground in Spring(never plant til after Mothers Day last ground freeze) It gets really cold where you are & Roses in containers in zone 7 are like them being in Zone 5 with no protection for roots. I hope they make it.
Mulch them with 4" hard wood mulch, then wrap with multiple layers of burlap. If the planters have space, insert stakes over which you can also secure poly fleece or similar, draping fleece over sides of planter. Because you're in zone 7, you may not need to worry about draping fleece over top of planter, but without knowing what zone your roses will tolerate, better to be safe.
In general, plants in planters must be capable of surviving 2 zones lower than yours.
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If you live in a cold climate, Frederica, you'll need to bring the containers indoors.
If you can move the planters, then bring them in to an unheated garage, shed or basement.
Why unheated?
Because you want the rose to stay dormant during winter and placing it in a heated room will wake it up. And once woken up it will need sunshine and since it’s too cold to put the rose outside….. well, you get the picture.
Simply wait for the rose to go naturally dormant and when that first deep freeze is forecast, like 25 F (-4 C) or below, go ahead and bring it inside. Once inside don’t let the soil dry out but don’t water it regularly either. Since the rose is dormant it won’t be taking up water. Just make sure the soil remains slightly moist and you’ll be fine
Come spring when the rose starts to wake up take it back outside. If you get an unexpected late spring freeze bring it back inside or just throw a blanket over it.
https://theminnesotarosegardener.blogspot.com/2012/10/overwintering-potted-roses-in-garage.html
Where do you live??
my planters are too big to be moved i wanted to use something like hay or straw ?
Mulch them with 4" hard wood mulch, then wrap with multiple layers of burlap. If the planters have space, insert stakes over which you can also secure poly fleece or similar, draping fleece over sides of planter. Because you're in zone 7, you may not need to worry about draping fleece over top of planter, but without knowing what zone your roses will tolerate, better to be safe.
In general, plants in planters must be capable of surviving 2 zones lower than yours.
THE PLANTERS ARE IN WOOD !