The SF Botanical Garden has a climbing guide for the Seemann's hydrangea.

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All of the climbing hydrangeas have one thing in common: it takes them a while to establish their roots after they have been planted which means that if you decide to plant evergreen climbing hydrangea, you probably won't see much happening the first year after you have planted it.Even if you don't see any changes to the plant, you will have to keep the soil moist and keep watering.

When the plant starts growing, it doesn't stop, like all of its close relatives.It lives for a long time and will eventually cover large areas of your garden making it perfect for covering walls and fences.

If you want your plant to grow in terms of length and width, you can remove the flowers as soon as you see them encourage energy in two other parts of the plant.It can make a difference in the first few years.Adding a Climbing Hydrangea like this to your home is something you need to do for the long-term.If you are willing to clip away flowers for the first four years in exchange for knowing that you will get beautiful blossoms in a few years, then you should plant this.

The plant needs something against which it can grow.Plants are placed next to a wall so they can cling to it as they get bigger.When choosing a location for your plant, be aware of the fact that walls and fences don't get a lot of sunlight.

As long as you keep the soil moist, these climbing plants will grow.To keep the soil well drained, be careful not to over water.They require a lot of shade, but can be cultivated almost anywhere.They are in the middle of the road.

I'm trying to figure out how much of an older climbing hydrangea can be cut without killing it.Any advice is appreciated!There is a video on this

If it is in shade, the seemanii are happy in clay soil.It is important to water the plant daily until it becomes established.You don't want the roots to dry out, but the clay soil should help with that.It might look like nothing is happening in the first year, but it should grow over time.Only in the first couple of years should flowers be trimmed.Seemanii is happier in the ground than in a pot.