I am on a one woman quest to make the Black-eyed Susan vine (botamical name - Thunbergia alata) as popular as the super-needy impatiens or the mundane marigolds.
Are you with me?
They. Are. Gorgeous. Period.
This old-fashioned beauty grows extremely quickly and is very easy to care for, making it a favorite in my garden every year. It is just as much at home climbing up a trellis as it is cascading down a hanging basket.
As a bonus, the vines attract all sorts of pollinators including bees, butterflies and hummingbirds.
Seriously, if you've never tried growing one of these you are missing out.
How To Grow Black-Eyed Susan Vine
- Hardy in USDA Hardiness Zones 10-12 (grown as a perennial in southern Florida, Hawaii, etc)
- Grown as a annual in cooler hardiness zones (I grow mine as an annual in Ohio)
- Prefers full sun with light afternoon shade
- Water regularly (if grown in a hanging basket do not let the pot dry out)
- A trellis or stake will be needed, because they sort of go nuts
- You can either purchased vines from the store already growing in pots or grow your own plants from seeds.
Growing From Seed
Although you can find the vines in containers and hanging baskets at most big box hardware stores and garden centers, they tend to come in basic yellow or orange. For some of the more non-traditional varieties you will need to grow them from seed.
But good news, these vines are VERY EASY to grow from seeds!
You can start indoors in biodegradable (paper or peat) pots 6-8 weeks prior to your last frost date. Or simply sow outside when soil temps rise above 60 degrees.
Plants normally emerge 10-14 days after planting.
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Varieties Available
There are MANY varieties of Black-eyed Susan Vines, but some of my favorites are:
Sunrise Yellow - the traditional bright yellow color
Arizona Rose - GORGEOUS rich rose pink
Tangerine Slice A-Peel - red and orange bicolor (the petals are striped looking)
Bright Eyes - white blooms with dark centers
Superstar Orange - very traditional orange with dark eye
Susie Mix - mixture of orange, yellow and white flowers on one plant
Arizona Glow - fiery orange/red with dark brown eye
Where To Buy Black-Eyed Susan Vine Seeds:
I get quite a few people emailing me about where they can buy Black-eyed Susan vines. I buy mine locally, but considering you all don't live right around the block from me, I did find Black-eyed Susan vine seeds for sale online HERE.
And if you are need a trellis, I located a similar wooden trellis HERE or a white PVC coated trellis HERE.
Black-Eyed Susan Vine not blooming?
Black-eyed Susan vine does go through a period in the dead of summer heat (late-July and August) when it tends to slow down on producing blooms. As soon as cooler weather starts back up again in September it should start to bloom again in force.
Other than that, make sure your plant is in full sun, you are watering it sufficiently and you are not over-fertilizing it. Too much nitrogen can cause plants to produce more foliage and less blooms.
Common Pests And Diseases
Occasionally spider mites or whiteflies may infest your vines, but that is rare. If you do get an infestation it can be easily controlled with an insecticidal soap. In 10 years of growing Black-eyed Susan Vines I have not had this problem yet (knock on wood).
How many Black-eyed Susan vines do you put in a planter?
- In your average sized hanging basket (10-12") you would plant 2-3 single plants.
- In larger urns you would plant 4-5 depending on the size of your container.
- I always err on the side of the more the merrier, but when you have trouble finding the urn under all those gorgeous yellow blooms come July . . .
Companion Plants For Black Eyed Susan Vine
Any low growing purple or dark blue plant looks AMAZING with the yellow Black-eyed Susan vines, such as Salvia, a purple Veronica (Speedwell) variety such as Royal Candles Speedwell or a purple African Daisy (Osteospermum).
This year I planted Victoria Blue salvia (an annual in these parts) at the bottom on the trellis.
You can also grow another vine along with it such as purple hyacinth bean vine or morning glories if you'd like the color to intertwine all the way up the trellis (or down the hanging basket if you go that way).
Other Gardening Ideas you might enjoy:
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BarbaraSullivan
I love black eye susan's never tried vine ,,try get one for spring ,Thank's for info on it ,happy planting,,..;
Barrymip
North Miami
Jacqueline Ayala
Hi, I bought recently. I want to build a trellis for it. What is the height you recommend for this plant? Thank you. It is indeed beautiful to look at first thing when we walk outside in the morning.
Pam
Mine is 5 foot tall. By the end of the summer it has climbed up and back down again so you can barely see the trellis anymore 🙂 You could go taller if you want it to keep climbing, but I sort of like the full look of it.
Deb
Hi. Can you tell me how you anchor your trellis? I am trying to figure out where to put it and how to keep it up.
Last year I put it in a pot but the wind kept blowing it over and I almost lost my flowers and pot.
Pam
That trellis is wired to tent stakes to give it extra support. I tried to just dig it down into the ground and that lasted about a week before it blew over 🙂 So then I wired some tent stakes to the bottom of the trellis (I overlapped the wood and the tent stakes about four inches and then wrapped wire around them both) and then pounded the tent stakes into the ground. It's not moved since and it's been there probably 5 years now.
Carolyn
I use rebar pounded in ground to hold my trellises up. I like the supply at Lowes. I plan to rebar stake all my shepherd hooks as well to handle weather and weight. I have a few hanging water pcs. I will try this flower next summer.
Mary Ann
I live in Sydney Australia and these come up all over my garden. They can become invasive but at least they are easy to pull out. They are very pretty.
Bonny
Do you know if the berries are edible?
Rae
I planted one in a planter this year. I bought it from a nursery in a 4" pot. It looked healthy and had two or three blooms on it then. Since we reported it here, it has grown some, and has not bloomed again. We moved the pot to a somewhat sunnier spot today. Can you give me any tips about what to do for it? Thanks!
Pam
They do like their sun. Are you fertilizing it? Sometimes if they're getting too much fertilizer (too much Nitrogen) they tend to grow leaves and not flowers. So if you're fertilizing it I'd cut way back on that for a few weeks and see if that's the problem.
Adelyn Taylor - Fast Landscape Gardening
The Black Eyed Susan Vine is gorgeous! It grows really fast and it is a great wall covering - looks absolutely fabulous! The only problem is that it tends to be a bit too invasive but you can avoid this if you take care of it well.
Regards,
Adelyn Taylor
Fast Landscape Gardening
Cathy Bowser
I have a Black Eye Susan vine. I grow it on a old wash line metal pole. It is in full sun in my back yard. Coming from PENNSYLVANIA TO FLORIDA in2004. Living in a. 5th wheel. Then, aMoble Home. Then. Buying a Block Home in Florida. This plant has a permanent home now.
Florence
I have never heard of Black-Eyed-Susan vine until just recently, & apparently, it doesn't grow here in zone 7 (Alabama.) It is pretty & looks a little different than Black-Eyed Susan wildflowers that are native here. I wouldn't mind having some to try out.
Have you ever heard of Grape Hyacinth vine? It's a pretty purple climber with pea pods that are edible, and pretty purple blooms. I think I'll do a blog post about it sometime, but I don't have it in my yard this year.
Allison from Gardening Services London
Black-eyed Susan vines would look amazing crawling on an arbour. It will create a very romantic spot for calm summer nights outdoors. Thank you for the idea. 🙂
Gina VanMuyden
Ive had mine for 4 years now.LOVE IT!
2 words of advice,requires partail shade,just like a shade loving plant,..will fry in hot sun.
Use chicken wire,not a trellis,they love to cling,will do better w chicken wire.
I purchases in Santa Cruz,I was worried it wouldnt survive sacramento heat,but does well!
I found seeds,trying my hand at planting from scatch!
Pam
Bought a bottle tree, added blue bottles. Planted one Black-eyed Susan vine to grow up the tree. Thought I may need another. It grew up the tree and fully covered the bench next to it. It was beautiful and bloomed until the frost got it. So glad I didn't buy another. I've got two starts growing indoors for next spring. Hope they make it!!!
Pam
They just grow like weeds don't they! Love those plants!
Gina VanMuyden
Don't know where you live,Im in sacramento.I thaught i lost mine due to frost 1st year,wasnt pretty!,..but came back! I now cover with old school x-mas lights during freeze,works well,Also,..KEEP HER MOIST! If she is dry,frost will take her!Dont pull it up,..she will come back! trust me.
Colette
In the East bay in California this vine grows well and makes it through the winter for another summer.
Pam
That's good to know! I wish it would grow as a perennial here in Ohio!
polly plum
I'm new to the gardening and home decor world, and this flower looks lovely!So do you grow BES FROM SEEDS OR FROM BULBS?And can you explain how a plant can be both non-invasive and grow like a weed?
Polly
Polly plum
Do Susan's grow in sFL? do you start from seeds, or seedlings? I haven't seen them down here.
I've never seen them down here.
Pam
I bought one this year at our local nursery to grow around my bottle tree. It's the best blooming thing I've ever seen.
Pam
They really do just take off don't they 🙂 The one I bought this year is half bright yellow and half orange and I'm kind of liking the variety of it.