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Triangle Theory

  1. Home
  2. Triangle Theory
  • By Carmen Johnston
  • August 6, 2019
To guarantee an eye-stopping container garden, always apply the Triangle Theory.

To guarantee an eye-stopping container garden, always apply the Triangle Theory. The Triangle Theory consists of three elements. We like to call them the three T’s:  Something Tall, something Thick and something Trailing.

  1. Plant something Tall in your container garden
  2. Plant something Thick by your something Tall
  3. Plant something Trailing that will soften the edges of your container garden

Don’t limit yourself; use the Triangle Theory to plant and design any container garden!

Tip:  Fill in your triangle with three types of plants—fill and fluff it up! 

Carmen Johnston

Get garden advice and plant care tips from industry expert, Carmen Johnston. Carmen integrates her first-hand experience with plants in The Southern Living Plant Collection with her vast knowledge of gardening to help readers solve garden problems.
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Plants Featured In The article

Heucherella

'Twilight' Heucherella

Heucherella hybrid ‘Twilight’ PP25723
Verbena
White Blush Verbena's blush pink to white flowers form tight bundles of color above dark green, low-growing foliage

White Blush EnduraScape™ Verbena

Verbena hybrid ‘Balendish’ PP25839
Boxwood

Baby Gem™ Boxwood

Buxus microphylla ‘Gregem’ PP21159
Distylium

Jewel Box™ Distylium

Distylium hybrid ‘BLDY01’

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