My 7-year-old climbing hydrangea was budded a couple of weeks ago, with 3 nights of frost, some of the buds turned brown. Will it still bloom?
Most likely the damaged buds will not bloom but as long as there are healthy ones still left on the plant, it is possible that it will bloom for you this season. This article will help you with managing the cold damage: https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
I'd like to know more information about vining hydrangeas.
This article should help: https://www.gardeningknowhow.com/ornamental/vines/climbing-hydrangea/growing-climbing-hydrangeas.htm
How do I get my climbing hydrangea to bloom? At least 3 yrs old and planted in rich soil.
Generally speaking, when plants don't flower, it's usually because they're not old enough, don't have enough sun, or have too much nitrogen/ not enough phosphorous in the soil. The first two are easy to understand, but the fix for the third involves fertilizing less and working bone meal into the soil. Here's some more information on climbing hydrangea that you might find useful: https://www.gardeningknowhow.com/ornamental/vines/climbing-hydrangea/growing-climbing-hydrangeas.htm
When can I expect my climbing hydrangea to flower? It is around three years old. Thanks.
Climbing hydrangeas take 3-5 years to bloom, so you may have a little wait yet.
For more information on climbing hydrangeas, please visit the following link:
https://www.gardeningknowhow.com/ornamental/vines/climbing-hydrangea/growing-climbing-hydrangeas.htm
Mine grew very large so I cut it back. Since then the plant has grown at a very good rate, but not flowered!
You may need to feed with an all purpose fertilizer or some good compost.
Review the care in the link below.
https://www.gardeningknowhow.com/ornamental/vines/climbing-hydrangea/growing-climbing-hydrangeas.htm
I'm wondering if there is a trick to growing this plant in a box? I would like to grow it on my deck in cedar planters. A friend did this but the vines only lasted a few years before drying out. We think it had to do with protection/upkeep in the boxes (we live in Montreal, so it could be cold winters too). Just a beautiful, clean, fresh vine with such pretty flowers. I'd like to try but grateful for planter tips .. Thanks! Winona
Unfortunately this is not a vine that would do well in a container long term.
This vine can reach 60 to 80 feet and needs a large surface support to attach itself to, a pot trellis would not be large enough.
The Hydrangea Vine can be slow to get growing, so this is why it grew for a few years, then died off.
Have you considered a Clematis? This would be well suited to a patio pot.
I have listed a couple of links for you.
https://www.gardeningknowhow.com/edible/vegetables/tomato/should-you-prune-tomato-plants.htm
https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis-in-pots.htm
How do I get climbing hyhrangea to bloom?
Climbing hydrangea sometimes can take a few years to get blooming after being plants. I would give it some phosphorus though, to see if you can get it jump started. Bone meal is a great source of phosphorus.