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Crazytunia® Black Mamba Petunia Plant

Your price: $8.36
  • - Height: 8-12 inches
  • - Growing Zone: 2-11
  • - Exposure: Full Sun
  • - Bloom Time: Spring-Fall
  • - Each 3-Inch Pot contains 1 Crazytunia® Black Mamba Petunia Plant
Plant Features

Crazytunia® Black Mamba Petunia is being touted as the absolutely, hands-down best black petunia, and for good reason! It is a strong, fast grower that offers non-stop color all season long. The eye-catching Crazytunia flowers are self-cleaning, love the heat, and have excellent weather tolerance. Petunia flowers produce a sugary nectar that hummingbirds and butterflies love.

Crazytunia Petunia Companion Plants: Gaura, Salvia, Lobelia, Snapdragon, Coleus

Crazytunia® Black Mamba Petunia Plant Care Instructions: For optimal performance, keep your plants well-watered. Choose containers with functioning drain holes as petunias will not tolerate wet feet. They will not go straggly, no trimming needed. Just plant and enjoy! 

Attribute name Attribute value
Plant Needs
Sunlight 6+ hours
Overwinter Zones 10, 11
Soil Moisture Moist
Soil Properties Well-drained
Fertilizer Twice per week
Attribute name Attribute value
Plant Characteristics
Height Category Medium
Mature Spread 12-18 inches
Habit Semi-trailing
Flower Color Black
Foliage Color Green
Attracts Bees, Butterflies, Hummingbirds
Features Heat tolerant
Garden Styles Container Garden, Cottage Garden, English Garden, Hanging Baskets, Pollinator Garden
Plant Used for Aesthetic Appeal, Borders and Edging, Ground Cover
Pet Friendly Yes
Plant Type Hybrid

Product Reviews


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Top Reviews

Absolutely stunning!

Grow Joy never disappoints. These Black Mamba petunias are stunning !

From Mary | May 26, 2023

Healthiest plant I’ve ever received in the mail

100% order from this place!! They had phenomenal packaging that I’ve never seen before and I’ve ordered plants online many times. I wish I could post pictures - they came without even a leaf browning, I don’t know how…but clearly they know exactly what they’re doing.

From anonymous | March 27, 2023


This flower was chosen to help build a bond me and my partner, and not only did it work! Its blossoming bigger flowers!!!

From Caleb | September 17, 2022

Gorgeous and unique

Gorgeous petunia in a true black color! She took a couple weeks to establish but after that tripled in size. She blooms constantly and tolerates heat very well. Like all petunias, she gets trampled by hard rain but she’s very quick to rebound. Highly recommended!

From Maya | August 04, 2022

Pretty Petunias

Perfectly packaged. Growing beautifully!

From Rachael | April 19, 2022

Didn't know I needed these

I saw these randomly and HAD to have them. I've never ordered plants online but they are perfect. Super black and healthy! Just took a couple weeks to bloom out.

From anonymous | June 17, 2021

So unique!

I've never seen anything like the Black Mamba at any Garden Centers near me so I was delighted I was able to order it online this year. The plant arrived healthy and well-packaged, with a couple blooms already, and it has just kept going since potting it up. This plant likes to dry out a bit waterings, or else it will wilt and shrivel from too much water. The flowers are stunning in the sunlight as they appear black when viewed from the top, but deep purple when viewed from underneath

From Jessica | June 11, 2021

Beautiful and lasted all season

Great flowers, completely covered in large beautiful black blooms. Lasted from Spring, thru Summer and into Fall. I can't wait to start up again next year!

From anonymous | October 09, 2020

7:44 am

The only reason I did not give it a 5S because it would not allow me to. I have one of these and absolutely love it. I get compliments from everyone who sees it I want more of them.

From anonymous | May 21, 2020

Perfect flowers!

These flowers arrived all the way to Sterling, Alaska in PERFECT CONDITION! I have been ordering from GrowJoy for many years now. I am always pleased with the quality products.

From Rita | May 08, 2020

Black mamba petunia

The day after receiving this plant it began to bloom. I actually ordered 2 more after receiving this plant. I’m a big fan of this company.

From anonymous | April 18, 2019

Can't wait!

It arrived in great shape, seems to be happy in it's new pot and I hope to see blooms soon. I'm glad I found GrowJoy.

From Christina | March 21, 2019

Black Petunia

It was exactly what I wanted. Had some last year but couldn't find any this year at my local nursery. Will try to same some seeds for next year

From Donia | June 12, 2018

Finally found them!!

I bought these plants last year at my local nursery. Was not able to find them this year. Went online, and this is the only company I found to get them mail order. SO HAPPY, they are beautiful and I can't wait until they go berserk! Fast, safe shipping and a great price. You can't go wrong with this product or this company!

From Deborah | March 30, 2018

Crazytunia Black Mamba Petunia - wonderful plant

I ordered this Petunia last year and didn't know what to expect. I loved it. It blooms more than the Black Cat Petunia I had in the same container, the blooms were just as big but were more graceful. It was vigorous and both mounded and trailed over the edge of the container. Love this plant.

From anonymous | January 15, 2017

So Cool!

Love these Black Mamba Petunia plants! Came so healthy and already 2 Black blooms! Really awesome plant!

From Robert | May 20, 2016


I have ordered these petunias for a couple of years. They always arrive in excellent condition, bloom within days after planting. Will order again!

From Sandra | May 19, 2016

WOW - Just WOW

Such a nice DARK color of the Crazytunia Black Mamba to add as a backdrop to any planter arrangement. I added it to some BRIGHT Pink, and it adds such a wonderful contrast!

From Robin | August 06, 2015

Beautiful plant!

The Black Mamba Petunia plant came in perfect condition and ready to plant. Very pleased with the purchase and plan on buying again from this company.

From Sandra | May 18, 2015

Great Plants Ready for the Garden

These Petunia plants were delivered in great condition and are now blooming happily in the garden. I would highly recommend them.

From Caryl | April 01, 2015