Mexican Petunia

(6 customer reviews)

Scientific Names: Ruellia brittoniana ‘Purple Showers’

Common Names: Mexican Bluebell, Mexican Petunia

Overview: The Mexican Petunia is a lovely plant that does not require a lot of your time and energy. You can quickly grow it on your own and ensure it blooms just the way you want it to. Grow them in optimal sunlight and water them regularly for the plant to be healthy!

Arrives in 3 - 7 days.
Ships October 6th - October 13th.

This product is not California Certified.

$ 28.00
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Natural Root Stimulant

Natural probiotics, organics, and moisture control gel boost root growth. Invigorates existing plants, reduces transplant shock and accelerates establishment of new plants. This all natural product will not burn roots.

When Transplanting: Apply between new soil and plant so stimulant touches root ball.

For Existing Plants: Apply stimulant 2-3 inches below top of soil.

Use the proper amount for each pot size:
6″ Pot: ½ Pack
8-10″ Pot: 1 Pack
12-14″ pot: 2 Packs

Organic Indoor Soil Mix

Watch your indoor plants flourish with PlantVine’s Organic Indoor Soil. This is our best all-purpose mix for the demanding requirements of indoor potted plants. The perfect combination of quality ingredients provides the ideal amount of water retention, drainage and aeration for a wide variety of interior plants. This is an all natural product containing no artificial fertilizers or chemicals. Each bag contains 128 oz of soil.

6” pot into an 8-10” planter: About 1.5 bags
8-10” pot into a 12-14” planter: About 3 bags

Organic Outdoor Potting Mix

PlantVine’s Organic Outdoor Potting Soil is time-tested and proven to help your outdoor potted plants thrive. This is our best all-purpose mix, and a smart choice for a wide variety of outdoor plants, flowers and vegetables. The all natural ingredients are specially blended to provide excellent long term drainage, high air porosity and good water holding capability. This mix contains no artificial fertilizers or chemicals. Each bag contains 128 oz of soil.

6” pot into an 8-10” planter: About 1.5 bags
8-10” pot into a 12-14” planter: About 3 bags

Pot it for me

Have your plant delivered pre-potted when purchasing a medium-sized plant along with one of our premium planters.

  • For Medium Plants
  • Perfect for gift giving
  • Replaces our standard grower pot
  • Medium Plant and Premium Planter must be purchased at same time to qualify
  • Can not be used with large, XL or hanging pot specimens

Soluble Fertilizer

Great for indoor and outdoor potted plants, this fertilizer quickly dissolves in water, making fertilizing as quick and simple as possible. Just mix 1 teaspoon (scoop included) with 1 gallon of water, and water as normal. Makes 48 gallons.

Shop with Confidence
Our plants are covered by our 45 day guarantee.
We even send you a picture of your plants before they ship.


Constant Purple Blooms from a Maintenance-free Plant

Also known as the Mexican Petunia, the Ruellia Brittoniana consistently rewards you with showy purple flowers. Its petunia-like blooms each last only a day, but the cycle continues without pause. You’ll always have flowers.

Resembling a cross between an ornamental grass and a flowering shrub, this hardy favorite is easy to grow. Great for border areas, it can grow as tall as 4 feet in full sun to partial shade. You’ll find it is much loved by butterflies and bees.

The Mexican Petunia is a native plant from Mexico, and even though it is named petunia, it is an evergreen perennial. The plant is trendy because of its purple flowers, and its flowers attract a lot of attention from butterflies, hummingbirds, and bees. The plant’s scientific name is Ruellia brittoniana, and it has a fast growth as compared to the other plants.

Caring for your Mexican Petunia

The Mexican Petunia is a very friendly plant; you can easily grow it wherever you like. They are very tolerant to conditions such as droughts, flooding, humidity, and heat, and you can also plant them in dry areas. If you take notice of specific care tips, your plant will bloom quickly!


When it comes to light requirements, the Ruellia tweediana loves sunlight directly from the sun. You don’t need to hide it; let them be out in the sun, and the plant will thrive. However, if you cannot keep it in the direct sun, then do not worry, as the plant can grow pretty well even if there is shade and it does not receive direct sunlight. But, the lack of direct sunlight may affect the growth of flowers.

These plants, if grown in the shade, will have green stems, but if they receive direct sunlight, they will have purple stems.


The Ruellia brittoniana is not very picky when it comes to soil, and you can grow it in any type of soil you like. However, to ensure that they grow to their full potential, you must use well-draining rich soil. Make sure that the pH levels of the soil are on the neutral to acidic spectrum.


The Mexican petunia is unharmed by water inconsistencies. They can stay healthy even if you do not water them for a long time or if you keep watering them regularly. They are resistant to floods and droughts. However, if the plant is in its growing state, then you need to make sure that the soil is moist. You can test the soil’s moisture by using your fingers and putting them into the soil. Only water the plant once you are entirely sure that the soil is beginning to dry out. It is the winter, do not regularly water the soil and only water it when the soil is parched.


The plant is fine on its own, and it does not require a lot of fertilizer, even in its growing stage. It is best to skip the fertilizer as that will not contribute much to the soil or the plant’s growth.

Common Issues

The Mexican bluebell is a resilient plant, and there are not many commonly found issues. These are unaffected by high temperatures and conditions such as floods or droughts. However, it is best to be extra careful with the plants to prevent any possible damage. 


The Ruellia brittoniana is not usually affected by pests, and you don’t have to worry about insects harming it. On the other hand, it may attract hummingbirds and butterflies, and however, they will not cause much damage to your plant.


One of the most common diseases for the Mexican bluebell is brown leaves. It usually happens when your plant is in freezing weather, and this causes significant damage to it. This will cause your plant to have brown leaves; to save it, you may need to place it in a warmer area. It is best to remove the damaged leaves to give way to new leaves.


If you want your Mexican petunias to bloom, then you must prune them. The plant gives purple flowers to encourage further flower production; you can prune the plant after it has bloomed. To do that, you must cut through the flowering stems so there can be some new growth.


You can use stem cuttings or the rhizome division to propagate these plants. If you propagate it using cuttings, use sharp snips and put them in well-draining potting soil.

You can also propagate the plant using seeds. Keeping the seeds in moist potting soil and putting it in a warm area will help you bloom them.

Potting / Repotting

The Mexican bluebell grows rapidly, and you may have to re-pot it every once in a while. It is always best to choose a pot that is 2 inches larger. To re-pot it, you must be very gentle and remove the plant from its existing pot to keep it in the new pot. The pot should be complete with well-draining soil, and make sure that the roots are buried as further down the soil as they were before.


Additional information


10a, 10b, 11a, 11b, 8a, 8b, 9a, 9b

Sun Exposure

Full Sun, Partial Shade

Mature Height

3 ft – 4 ft


18 in – 24 in

6 reviews for Mexican Petunia

  1. Paul K. (verified owner)

    Arrived in great shape. Unpacked and watered it right away. Waited about three days and repotted it. We’re going to bring it in to overwinter. We love these when we are in Florida, so we are looking forward to many years and blooms. Thank you!

  2. Nancy Sheets (verified owner)

    Thank you for my Mexican petunia. It arrived perfectly and I love it. I appreciate the emails on the care and how to unbox it when it was received. I will be purchasing again!!!!

  3. Lisa (verified owner)

    Packed and delivered with care

  4. Diana Marateo (verified owner)

    Beautiful plant with some blooms, will be a wonderful addition to my entryway!

  5. Steven (verified owner)

    Lots of yellow leaves. 5 days in transit.

  6. Jill Lesko (verified owner)

    Nice and healthy

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Why others chose the Mexican Petunia

These are one my favorite flowers. The dark, sword shaped leaves are stunning next to the flowers that bloom every day! They are a very hardy plant. I had to bring mine indoors for 7 months up north, and it changed it's leaf shape to adapt to the low light. Once I put it outside for the summer again, I pruned those leaves, and new sword shaped leaves started growing back, along with flowers. Love these plants!

Flowers are a good nectar source for pollinators.

While visiting Gatlinburg TN, the hotel where I stayed had one of these plants and the butterflies and hummingbirds were loving it!