Can clematis henryi grow in a containor?

Found this on Clematis.com





CLEMATISES are like choco­lates. Once you've had a few, you can't stop - you always want just one more. Luckily, they are good at fitting into crowded gardens because you can grow them in places where there's already something else.





You can plant three different sorts up through a tree or fair-sized shrub. The flowers are bound to overlap, so I'd go for three with contrasting shapes - maybe one with rosette flowers, one wide-open single variety and one of the 'pixie-hat' type.





You could grow a couple of the smaller clematises on a piece of trellis, up an obelisk in a border or through a wall Shrub.





They're quite happy in a position where the roots are in shade and the fops are in sun. Before you plant a clematis, mix loads of organic matter into the soil and plant it so the rootball is 4-6m underground. Then give it a good mulch and feed every spring.





Clematises are great for containers and that's the popular way to grow them. For tubs, the new compact varieties that grow 6-8ft tall and flower from June to September are brilliant.





Since they will stand outside in winter, go for glazed ceramic or plastic tubs rather than terracotta, which might crack if it freezes,





Choose a 15-18in pot for one plant. Clema­tises like a rich compost, so use John Innes No 3 and add a moisture-retaining gel so it doesn't dry out too fast. Plant your clematis in the middle of the con­tainer with the rootball 2-3in under the surface and put in a 4-5ft-high cone-shaped hazel plant support or obelisk. Spread out the stems and tie them in -the new shoots will grip on for them­selves.





Tubs of clematis need a reasonably sunny spot, but not one that's baking hot. It's a good idea to stand pots of shorter plants around them to keep the roots cool and shady, but go for some­thing simple such as grasses - noth­ing that will take away too much attention from the main feature.





If you are a clematis fan, it's worth trying a compact variety in a hang­ing basket. A few stems will work their way up the chains and over the bracket, but most will flop over the sides. Tie them in place, winding them around the basket so the plant makes a neat sort of nest.





Clematises can be tricky to get going in a hanging basket because when you first plant one the roots are exposed to the sun so they dry out and cook.





It's best to get them going well in a shadier spot first and put the basket





out when they've grown a sun shade of leaves. Use a biggish basket and keep it watered so that the plant doesn't dry out. Clematises are greedy and when growing them in containers give them a little liquid tomato feed every week.





Snip off the dead heads through the summer and, at the end of the season when the flowers are over, prune the plants back to tidy up the





shape. Don't hack them back hard, as you often do with clematises grow­ing in the garden, because you want to encourage dense growth that cov­ers your support frame with flowers instead of just having one or two long stems.





Clematises are not prone to prob­lems apart from clematis wilt and you only get that once or twice in your gardening career - the leaves turn black and the stems die off back to ground level. That's why you plant





clematises deeply, so you have several buds in reserve underground which can produce new stems.





I sometimes hear from people planted a clematis so it would up through a tree, but it died.





What usually went wrong was they had planted it at the foot of the tree where there's no moisture, the soil is impoverished and it's too dark.





Plant the clematis at the edge of the tree canopy where you've dug in loads of compost and use a rope or pole to allow it to grow up into the tree. People sometimes complain that their clematis flowers face the wrong way so their neighbors get all the benefit. Clematises grow towards the sun and the flowers will face that direction, so choose an appropriate site so you’ll see them.





In the same way, you can’t expect a clematis to flower in the dark area under a pergola or arch. The flowers all grow on the outside, so put it where you can look down on it from your bedroom windows and you’ll have a great view.

Can clematis henryi grow in a containor?
They can as long as the container is big enough; if the roots are too confined, they will lack vigor. I recommend at least a 3-gallon pot.
Reply:yes anything will grow in a container it just wont be as vigorous as it would if planted in the ground .i have several clematis growing in containers and doing really well .just remember to feed and water them .
Reply:Hi Sylvie.





Sure you can. You can grow most plants in containers, they just require a little more attention than those grown in the ground.





Clematis are thirsty and hungry plants, so a good potash/potassium feed in the Spring and a general fertiliser feed later on in the year should help a great deal. Containers also need to be checked more regularly for water as the available water is only what you give it.





It will need a good deep pot and the bigger the better. If you bury the plant a couple of inches further below the soil than it is in the pot when bought, this should help prevent the fungus known as "Clematis wilt".





In short: Nice deep pot, full of good enriched soil and preferably mulched on the surface with some well rotted compost. Keep an eye on the soil moisture and don't let it dry out for too long during warm spells. Re-pot in a couple of years with fresh soil or mulch with compost annually.





Here's a link on Henryi:


http://www.clematis-nursery.com/wms/wmsg...





Hope that helps a bit and hope you have loads of flowers!