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Plant It Tampa Bay

Petunia - Mexican Bluebell

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Petunia - Mexican Bluebell

Blue Agave is an exquisite tropical succulent plant popular as both an outdoor landscape plant and a potted houseplant. Blue has a maximum size of 4 ft. H to 5 ft. W and grows slowly, making it unusually well-suited to interiors as well as exterior plantings. much pruning as other agaves.

Highly decorative ruella, or "Mexican Petunia," produces endless violet-purple flowers that attract butterflies.

Looking like a cross between an ornamental grass and a flowering shrub, this hardy plant flowers every day when placed in a sunny location. 

The petunia-like blooms each last only a day - but are replaced the next with more blossoms.

A popular favorite in South Florida landscapes, this pretty shrub spreads and can be invasive. Plant where solid edging contains the plant or regular maintenance controls the spread. AVOID placing near areas like wetlands or preserves.

The showy purple color of the blooms works with almost all other landscape colors, and the plant's upright stems spilling over with long, thin leaves create an informal and even naturalized look.


  • Blue bell likes full sun to part shade, the more sun it is given, the more flowers it produces, part shade conditions will yield a darker blue flower
  • A perennial in zones 7 -10, it may need protecting during a colder than normal winter in zone 7
  • Mid-summer blooms are a favorite of butterflies, blue bell is seldom bothered by pests


    Plant It Tampa Bay


    Easy To Grow

    Low Maintenance

    Grows well indoors or Outdoors

    Good For Containers

      Plant It Tampa Bay

      Grow Best:



      Plant It Tampa Bay   Containers


      Plant It Tampa Bay

      Ideal position:

      Full sun

      6 hours morning sun best

      Plant It Tampa Bay


      Water regularly - weekly, or more often in extreme heat or containers.


      Plant It Tampa Bay

      Healthy Temperatures:

      Warm, tropical vibes of 65-90°F

      Grown indoors as a houseplant but can be grown outdoors in USDA Hardiness Zones 5-11

      Plant It Tampa Bay

      Growth Outlook:

      Height : 4'  

      Wide: Up To 4'

      Growth Rate: Moderate grower

      Plant Spacing:  30" apart


      Plant It Tampa Bay

      Pet Friendly - NO

      Toxicity: Mildly toxic to dogs and humans when ingested.

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      Landscape uses: 

      Warning: You may have to work to keep it where you want it.

      • Accent for a butterfly garden or mixed bed
      • Along a fence
      • Fronting a row of taller shrubs
      • As a backdrop for smaller shrubs
      • Along a deck, porch or patio
      • Group planting in a dedicated bed (like the top photo)

        Plant care

        Add top soil or organic peat moss to the hole when you plant. You may also want to add water-retaining crystals, pre-swelled before planting.

        Water is this plant's only issue. It likes it...a lot. This is not a drought-tolerant shrub, so be prepared to provide regular irrigation. 

        These shrubs can even handle "wet feet," growing in areas that are slow to drain.

        To mix a moisture-loving plant like this with other shrubs that like it dryer, using water-retention crystals for certain plants will keep everybody happy. 

        Trim back whenever you like. Occasional trimming keeps these plants bushy and full.

        You may have to pull up stray shoots that pop up where you don't want them.

        Fertilize 3 times a year - once each in spring, summer, and autumn - with a good granular fertilizer.

        Plant spacing

        Plant 3 feet apart. Come out from any structure 2 to 3 feet.

        These shrubs will outgrow any container in no time, so planting in the ground is your best option.