Although I have had my trumpet vine for several years, it has never had flowers. It grows well and has many vines, some feet long. What can I do to encourage the plant to bloom.
Hello,
There are a few reasons why these can be reluctant to flower, including too much fertilizer, or not enough sunlight. Here is an article that will help you to figure out what is going on: https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/trumpet-vine-no-blooms.htm
I purchased a trumpet vine a few years ago and planted it alongside a fence which is situated at my property line. The vine grows vigorously every year, but has yet to blossom (the blossoms, according to the label on the plant when I bought it, are supposed to be yellow). I prune the vine back hard early every spring and so far, have never seen a blossom? Your thoughts?
There are a few things that can cause this issue. The most common are: lack of sunlight, Too much nitrogen in the soil, pruning at the wrong time, not enough potassium and phosphorus in the soil. Here is an article that will help you to identify and correct the problem: https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/trumpet-vine-no-bloo
I am sure I saw a Campsis in a town garden in Salvador, Bahia - Brazil. If I order this plant, will it grow in my garden - 80K north of Savador, tropical climate?
Campsis radicans, aka trumpet creeper, is an aggressive vine. Be very care when introducing an species into a country where it isn't native. An aggressive native US plant may be invasive where you are. In grows in the southern tier of US, southeast states and further north. Here are 2 articles on trumpet creeper: https://www.wildflower.org/plants/result.php?id_plant=cara2
and https://edis.ifas.ufl.edu/fp099
Are the bean-like seedpods poisonous or in any way harmful to humans?
The are 2 plants commonly known as trumpet vine. One, Campsis radicans, is a fast-growing large vine with medium sized flowers that are shaped like a trumpet. The other is a smaller vine with smaller flowers and is also called coral honeysuckle, Lonicera sempervirens. I think you are referring to the first vine which is more common. Here is information. Toxicity is at the bottom of the page.
https://plants.ces.ncsu.edu/plants/all/campsis-radicans/
For many years a trumpet vine has been flourishing along my side fence but, owing to the shortage of rain off and on over the last 3 years, the vine suddenly sprang up right through the base of several of my standard roses. The vine has sent its roots about 4 meters underground and also under a cement path. Where it has come up by the cement path which borders my rose garden I have cut it off and painted with mineral turpentine which stops it for awhile, but then more shoots come up..but the real worry for me is my precious roses which are all over 50 year old. How do I stop the trumpet vine from sending vigorous roots coming right up through the base of the roses? I wouldn't dare use roundup or anything like that. When I cut the vine off right at the base of the roses it sends up more vigorous shoots than ever.
You must be talking about Campsis radicans, an aggressive vine in garden soil. I don't think there is anything you can do except prune out unwanted vines. One vine that may better suit your needs is Carolina jessamine, growable in AU zones 1-3. Here is some information: https://www.gardeningknowhow.com/ornamental/vines/carolina-jessamine/growing-carolina-jessamine.htm
can a trumpet vine be started from last year's beans?
As long as they have fully matured, then it is possible. This article will show you how to do this: https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/germinating-trumpet-vine-seeds.htm
I have, what I believe to be, trumpet vines invading all over my yard. The leaves are identical but I haven’t seen any flowers or buds start to develop on any of the new vine growth. With the exception, of course, being the original, established plant.
Oh! These will flower when it is HOT. They tend to like the heat quite a bit. Also worth mentioning... These are extraordinarily invasive and attract ants. Just be careful with this plant, and know that it will become a problem if it isn't managed properly each year.
This article will help: https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/growing-trumpet-vines.htm
Unfortunately, there are too many plants with the name Trumpet vine to give you any accurate information. If you could include a photo of which one you are referring to, then I could help you to figure out what you have, and when it will flower. Or if you know the scientific name for the plant that you are referring to, then this is always the best nomenclature to go by, as it will point me to the exact plant without question.
Campsis radicans Would be the scientific name. I don’t have a photo as it isn’t foliage season here in NH yet!