I have 4 climbers and four shrub roses on my deck in Boston. There's a lot of wind, and all were wrapped in burlap. To my surprise all the climbers kept their canes and are now leafed out (usually we lose some). Two of the shrubs seem pretty dead, but one is all leafed out and another has green branches and what seem like live (soft) buds, but it hasn't leafed out. What might cause this? We had no late freezes hard enough to kill roses (note climbers and other shrub). The shrubs are the same kind... I'm having a senior moment about the name.
I assume they're planted in large pots or barrels ? roses in pots need special attention not only to water them often but also fertilizing them more often .
If they're Hybrid teas or Floribunda's they need winter protection especially in pots if they were left out during winter.Always plant roses in our climate deep.Plant the grafted bud union 4 inches BELOW soil level.That not only protects them but it could be that they eventually grow on their own roots.
Do they get several hours of sun every day ?
They are in large pots and we do water and fertilize for that situation. The mystery isn't why some died (very difficult on an open deck, lots of wind) but that the climbers (more fragile) survived beautifully, while most of the Bonicas died completely. When I say completely I mean no seductive green stems in the spring that finally die. Just dead.
Oddly, all my climbers come through. Even Zephirine Drouhin, which is completely exposed on the north side of my 5a yard. Quadra, Constance Spry and Tess of the D'Ubervilles come out of winter with 95% of their canes, also unprotected. . But I can't keep a floribunda or grandiflora no matter what I do - 4 Icebergs, 4 Crimson Bouquets. Burlap, mulch, no matter. The same treatment to the fragile Glamis Castle produces a plant that leafs out early, blooms early and continues through fall.
All of my Bonica's are doing good,not great but good,then a couple more FL.GR never did live for me and HT around here are known to be bought as an annual.It's a shame but that's how it is I guess.
ALL of my CL are alive but had to cut down EDEN very low .