
Light Needs

Mature Height

Mature Spread
Grow a deeply orange vine each summer by adding Thunbergia Tangerine Slice A Peel (T. alata) to a patio container or area of your landscape. This pretty vining annual reaches up to 8 feet long of trailing stems packed with bicolor red and orange flowers. Also called Black-Eyed Susan Vine, this thunbergia thrives in full sun or part shade.
From planting time through first frost, your thunbergia will climb up a trellis or patio post or drape prettily from a hanging basket. The plant is just as much at home in a container as it is in the landscape, so it’s a versatile addition to any summer garden. It can take sun and heat and keep on blooming and spreading. And it’s an easy-care vine, with no need to deadhead flowers after they’re done blooming.
Tangerine Slice A-Peel® Black-Eyed Susan Vine Care
Thunbergia can grow in most average soil types and is a good voice for containers. They require little fuss, other than some help guiding the trailing stems where desired. Plant it in spring after the danger of frost has passed. The plant does not require lots of help from fertilizer, but one application of a controlled-release fertilizer at planting time can help boost growth and flowering. Container-grown plants might benefit from one more feeding mid-summer.
Give your thunbergia average water as needed and avoid over fertilizing, which can actually hurt flowering. There is no need to prune or deadhead the vine. Just enjoy and even share with family the calm task of helping the vine trail up its hanging basket chains or winding through a trellis or small fence.
Tangerine Slice A-Peel® Black-Eyed Susan Vine Spacing
Be sure to consider the full length or spread of Thunbergia Tangerine Slice A Peel when planting. Although it reaches about 18 to 24 inches wide, the stems can grow to 96 inches. Space more than one plant about 16 inches apart to give each room to grow.
Tangerine Slice A-Peel® Black-Eyed Susan Vine Information
USDA Hardiness Zones: 10-11 |
Flower Color(s): Orange, Red |
Flower Description: Red And Orange Bi-Color |
Bloom Period: Planting To Frost |
Foliage Color(s) Green |
Light Exposure: Partial Sun to Full Sun |
Height Class: Tall |
Height: 60-96 Inches |
Spread: 18-24 Inches |
Spacing: 14-16 Inches |
Habit: Climbing |
Watering: Average |
Drought Tolerant: No |
Container Role: Thriller |
Use Types: Container, Hanging Baskets, Landscape |
Features: Continuous Bloom or Rebloomer, Low Maintenance, Deadheading Not Necessary |
Maintenance: Easy |
Scientific Name: Thunbergia alata 'DL1501' USPP 30,215, Can 6,078 |
Common Name: Tangerine Slice A-Peel® Black-Eyed Susan Vine |
Other Name(s): |
Plant Type: Annual |
Brand: Proven Winners |
- SKU:
- THUTSP
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
3.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
~1.42 quarts

Also Known As:
4.25" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.93"H x 4.25"W
Volume:
~1.56 pints

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
~1.50 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
~2.26-3.73 quarts

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
For annuals, houseplants & vegetables, we provide a 30-day warranty to ensure that your plants thrive.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.