Top Questions About Clematis Plants

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Questions About Clematis Plants

Asked by
Anonymous on
May 18, 2011

Q. Clematis

I have a 4-year-old clematis that is not getting any bigger. It blooms beautifully (once) in late spring, then it is done for the season. It has a short trellis to climb and it is fairly bushy. Do you think a taller trellis would help?

Answered by
Nikki on
May 19, 2011
Certified Expert
A.

Have you fertilized it? If not, then fertilize with a 3:1:2 or 4:1:2 ratio fertilizer. You may also want to consider pruning, as this can oftentime promote growth. This article may offer additional help as well: https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis.htm

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Asked by
Anonymous on
May 21, 2011

Q. Clematis Won’t Bloom

I have had my clematis for three years. It grows every year and climbs the arch but I have never had a bloom on it. What can I do?

Answered by
Nikki on
May 23, 2011
Certified Expert
A.

It may be lacking phosphorus. I would give the plant some phosphorus, like bone meal. If the foliage looks healthy but there are no blooms, phosphorus is normally the problem. This article should also help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm

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Asked by
Anonymous on
May 24, 2011

Q. Transplanting a Clematis

I have a Duchess of Windsor Clematis that I would like to transplant. It has not started to bloom, although it does have buds on it. We live on the coast in Ct. Is it too late to do this?

Answered by
Nikki on
May 25, 2011
Certified Expert
A.

You can transplant now, but if you do, it most likely will not bloom this year. Moving is hard on a plant and it will sacrifice its blooms in order to focus on recovering from being moved. You might be better transplanting in fall. The plant should recover enough by the next year to bloom for you.

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Asked by
Anonymous on
May 27, 2011

Q. Growing Vines Up Posts

I have 4 plants, 2 jasmine and 2 clematis, that I want to grow up two different 8 foot posts to an 18 inch wide, 15 foot trellis. How do I get the plants up the posts? Ideas I’ve had (wrap the post with chicken wire, buy two of those cheap 15 inch x 6′ trellises from the hardware store and somehow attach them to the posts, hang some wire from the top and loop it around–this is the most invisible idea I’ve had, but not sure how to make it work) are either ugly or questionable.

Answered by
Nikki on
May 28, 2011
Certified Expert
A.

I would use bird netting instead of chicken wire. It is nearly invisible once the plants are on it and can simply be stapled on. You can find it at the hardware store as well.

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Asked by
Anonymous on
June 5, 2011

Q. What Would Be Cutting Just the Clematis Off

The last two years I have been watching my clematis being cut off at the ground level. They do not eat the plant, they just get cut off. I am not able to find anything. They do not eat my morning glories. Help please. I don’t know what to do.

Answered by
Nikki on
June 6, 2011
Certified Expert
A.

If the damage is on new growth at or near the soil line, it could be cutworms, which normally feed at night (their daylight counterparts are called loopers). During the day they hide in the soil or leaf litter below. Treat the plants with neem oil and this should help. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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Asked by
wgjr51 on
June 5, 2011

Q. clematis

I have a clematis that grows beautiful leaves and shoots each spring but has yet to bloom with flowers. Last year we had two blooms and the year before none at all.

Answered by
Heather on
June 8, 2011
Certified Expert
A.

It likely has too much nitrogen. It makes the plant grow lush but with few flowers. Try adding bone meal. This will add phosphorous and balance out the nitrogen. Also, if there is lawn nearby that you fertilize, try not to do it near the clematis.

Here are some other possibilities:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-not-blooming.htm

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Asked by
Anonymous on
June 13, 2011

Q. Splicing a Broken Clematis

I accidently cut 3 established clematis clean off near the ground whilst tending roses. Is there a way to re-join the broken runners?

Answered by
Nikki on
June 13, 2011
Certified Expert
A.

Unfortunately, you cannot splice them back together, but you may try rooting the cut sections. This article will help:
http://www.ces.ncsu.edu/depts/hort/hil/hil-8702.html

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