Three feet away is plenty. There should be enough sun. How strong is your fence? Honeysuckle can be really heavy. The annual vines won't be nearly as heavy. Morning glory will be beautiful, but it self seeds with a vengeance. I am still battle morning glory in a bed where I grew morning glory on a fence. If you like red, Cypress Vine and Cardinal vine have grown well for me. They will reseed as well, but so far they haven't been as bad as the morning glory.

I also grow passionvine (passiflora caerulea) on my fence, which is beautiful. It is a perennial vine, but most years the top dies back and it grows back from the roots. I grow it as a host plant for the gulf fritillaries. They will lay eggs on it and the caterpillars feed on the vine. If you have kids, they are a lot of fun to raise.

Passionvines

Hi Regina!

There is about 2400 sq ft of honeysuckle growing in the thicket on the neighbor's lot that encroaches and spills over our fence and creeps into our yard just to the edge of the tree shade. I believe someone who lived here before us planted it and it grew into his thicket. Nobody minds. I don't mind. In the spring when it is allowed to bloom fully (some years it's not great conditions) I can walk outside for about 15 minutes and return inside the house to find myself bathed in its perfume even if I was standing on opposite side of the yard. This year will be one of those years.

Honeysuckle is VERY heavy on the fence line as our decades-old climber reveals. Our fence is sturdy but it's leaning from the weight. Removal isn't as bad as some plants, though. Regrowth isn't massive, but it is coming back in the areas we ripped it out to replace fence line. We don't mind its present growth since the fence isn't apparent amidst the jungle. It will probably grow into your shady areas instead of thriving in the sunny spot. I don't know for sure if that's the case for your spot, but it is mine.

I don't know about the others. Every time I try to start morning glory, it fails. By hot summer, I'm grateful. I have gabillions of wild morning glory and it is a pain everywhere. Lisa likes thug plants, so if she's complaining about something you can rest assured it is a monster.

I seeded black-eyed Susan this year, too. :)

Moon flower is particularly lovely, especially if you are outside in the evening when the flowers open up. When I grow moon flowers on a fence, I only plant one every 5' or so and probably could get away with one every 10'. The only drawback to moonflowers is that they do not bloom until mid-summer at the earliest. I love morning glories and black-eyed susan vines, but both reseed vigorously, so don't plant them unless you want to spend the next 1000 years pulling out hundreds of seedlings per year. I don't have the right soil for clematis, so will leave that one for someone else to address. Honeysuckle is my favorite of the ones you listed. Be sure you get the right kind of honeysuckle---we have a coral honeysuckle called "Pink Lemonade" that is spectacular in bloom and very drought- and heat-tolerant. It never has spread beyond the place where we planted it. We have two of them, one on each side of the entry arbor to our veggie garden. They've been there about 10 years and have resisted my DH's accidental pruning them to the ground several times (while attempting to do other things), which is one of the reasons he is not allowed in my fenced garden with either a chain-saw or weed-eater. I grow tons of night-bloomers that have lovely fragrances, but the honeysuckle is my favorite one of them all. For a six-foot fence line, you only need one honeysuckle, and really not more than 2 to 4 of any of the annual ones like moonflower vine, morning glory, etc. They all spread vigorously with adequate or excessive moisture, and you won't believe how much ground one vine will cover.

One you haven't mentioned that is very lovely is purple hyacinth bean vine. While it is an annual, I have one that has perennialized and has come back in the same exact spot for about 10 years. If you don't cut off the bean pods before they mature (I always cut them off), it will self-sow all over the place. One advantage it has over some other annual vines is that the seedpods are big and easy to spot, so it doesn't take long to deadhead the vines, which also will encourage them to keep blooming. For whatever reason, none of the wildlife eats my purple hyacinth bean vines, though they'll eat every other bean plant I grow.

Another less common but beautiful perennial vine I grow is American Cross Vine. I have the standard coral-orange-flowered one and a yellow-flowered version.

Any annual vine I've grown here has been pretty prone to reseed prolifically, so be aware of that if you go the annual vine route.

Even though morning glories are highly invasive and reseed prolifically, I cannot resist planting some every year and a fence covered with "Heavenly Blue" morning glories truly is a sight to behold.

Hope this helps. The nice thing about using an annual vine instead of a perennial one is that if you want to try something new next year, you just plant something different than what you grew the previous year.

Oh, I love morning glory too! I would just suggest that you plant them on a fence where they only place they can invade is grass...so the mower can take care of the excess.

Bon, I have that wild morning glory too. UGH. Between that and the milkweed vine or honey vine or whatever that horror is called, I spend a lot of time pulling vines!

Honey Vine

I love the purple and the white hyacinth also for climbing. They bloomed all summer in full sun to part shade.

Hyacinth. the white have smaller flowers and seedpods but are just as stunning when grown together.

Aw, that's bootiful!

I love wysteria. Nothing is prettier than when it is blooming but it is very heavy also and needs to be trained to some extent. I never have much luck with it - must not like the soil out here.

Shaer, if you ever had to battle wysteria, you might be grateful it doesn't like your soil! It is beautiful, but it can be pretty aggressive.

That's really good to know. I drool over it whenever I see it in bloom somewhere but now I'll look at it with a more jaundiced eye - haha/

how about something edible? Green beans, or those cukesquash that Lisa grows, or cucumbers?

Are you trying to confine the vines to a six foot area (not sure if that's what you meant by only planting six feet)? I hope not because all the ones you listed are quite vigorous and will run/seed everywhere. If you're looking for something a little more obedient, I like Carolina Jasmine/Jessamine. Yellow flowers in the spring, mostly evergreen leaves year round.