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Diamantina™ Opal Yellow Mandevilla

Proven Winners

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Availability : Out of Stock

Ships Week of 5/23/22

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  • Full Sun (At Least 6 Hours Of Direct Sunlight)
  • Mature Height 12 - 60 Inches
  • Mature Spread 12 - 60 Inches
  • Growing Zones 9 - 11
  • Use As A Thriller In Containers

Diamantina™ Opal Yellow Mandevilla is an easy-care vining plant that boasts beautiful flowers. The bright yellow blooms have rounded petals with dark, golden yellow throats. New flowers bloom summer into early fall and are surrounded by lush green foliage. This Mandevilla hybrida is also known as rocktrumpet, and the vines can reach up to 60 inches. Carefully hand-train the vines along a trellis to create a showy display.

This low-maintenance plant thrives in a landscape or container. Feature Mandevilla in a hanging basket so the vines can cascade down and create a curtain of greenery. This plant is very well suited to warm summer weather, and it is both heat- and drought-tolerant. Mandevilla hails from tropical and subtropical climates, and the beautiful blooms attract pollinators like hummingbirds and bees.

Diamantina™ Opal Yellow Mandevilla Care

Plant Mandevilla in a spot that receives full sun. This plant can handle six or more hours of direct sunlight. Water this plant when the soil starts to dry out. Use rich, slightly acidic to neutral soil that promotes drainage for best results and feed the plant every other week using balanced, water-soluble fertilizer. Let the vines grow or trim them back in the spring to maintain a bushy look.

In USDA zones 9 through 11, Mandevilla can overwinter outdoors. In colder regions, the plant can live indoors during the winter. Trim back the growth and place the potted plant in a sunny window. Water when the top several inches of soil dries out. Hold off on fertilizing if the plant is dormant and not actively growing.

Diamantina™ Opal Yellow Mandevilla Spacing

This large vining plant can grow 12 to 60 inches tall and spread 12 to 16 inches across. Space plants 24 inches apart to create a full planting or feature in a 10- to 12-inch container.

Diamantina™ Opal Yellow Mandevilla Information

USDA Hardiness Zones: 9 - 11
Plant Type: Annuals
Light Exposure: Full Sun (At Least 6 Hours Of Direct Sunlight)
Mature Height: 12 - 60 Inches
Mature Spread: 12 - 16 Inches
Spacing: 24 Inches
Habit: Climbing
Flower Color(s): Yellow
Flower Description:
Bloom Period: Summer, Early Fall
Foliage Type: Deciduous
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: Summer Flowering
Watering: Average
Resists: N/A
Tolerates: N/A
Attracts: Bees, Hummingbirds
Container Role: Thriller
Uses: Combinations, Containers, Wildlife Gardens
Features: Attracts Pollinators, Low Maintenance
Brand: Proven Winners
Common Name: Diamantina™ Opal Yellow Mandevilla
Other Name(s):
Scientific Name: Mandevilla hybrida

Click here for more information on plant container sizes.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.

1 Review - Diamantina™ Opal Yellow Mandevilla Show Reviews

  • 5
    So far so...

    Posted by Grace H. Oswalt on Apr 18th 2022

    The yellow Mandevilla arrived about two weeks ago. It was healthy and packaged securely in a heavy carton box. After a few days of acclimating in our local zone 9, I transplanted it to a large pot. It stayed in a greenhouse during a few freezing nights. It looks good now, and seems to grow a bit. Let’s hope it will flourish in coming days or years.