Trough Planter Boxes – Rectangle Garden Pots and Planters

Rectangle and oblong trough planters offer a variety of design possibilities for using garden pots and planter boxes in outdoor spaces. Our trough planter boxes create borders, line walkways, define patio areas, or add height to low-growing plants as versatile landscape containers. Perfect for screening garden areas, flanking doorways, accenting corners, or simply adding a touch of vertical interest.

Fast Delivery

Most orders within a few days

Choose Your Rectangle & Oblong Trough Planter Boxes From Our Exclusive In-House Ranges

Moscow GRC charcoal trough planter box

$195.00 – $749.00

Florence light concrete rectangle planter box

$195.00 – $749.00

Moscow GRC ivory oblong planter box

$195.00 – $329.00

Monaco rust rectangular planter box

$195.00 – $329.00

Manhattan fiberglass trough planter

$195.00 – $1095.00

Alaska GRC off-white rectangle garden pot

$195.00 – $549.00

Milano light concrete trough planter

$195.00 – $1095.00

Manhattan ivory planters and troughs

$195.00 – $329.00

Jakarta fiberglass trough planter box

$189.00 – $489.00

Tall rectangle planter box

Tall Trough

$329.00 – $1395.00

Long oblong planter box

Long Troughs

$695.00 – $1095.00

Mykonos rectangular trough planter

Mykonos Troughs

$219.00 – $795.00

Click to view all shapes and sizes in our Trough Planters
https://sigmaplanters.com.au/product/florence-lightweight-concrete-trough-planters/ 
Florence Trough 1000: L1000 H450 W450mm: 12.5KG
Florence Trough 1200: L1200 H500  W500mm: 18KG
Florence Trough 1500: L1500 H500  W500mm: 28KG
Florence Tall Trough 700: L700 W350 H700mm: 10.5KG
Florence Tall Trough 900: L900 W450 H900mm: 22KG
https://sigmaplanters.com.au/product/moscow-grc-forum-trough-planters/
Moscow GRC Charcoal Trough 850: L850 W350 H350mm: 8KG
Moscow GRC Charcoal Trough 1000: L1000 W450 H450mm: 12.5KG
Moscow GRC Charcoal Trough 1200: L1200 W500 H500mm: 18KG
Moscow GRC Charcoal Tall Trough 700: L700 W350 H700mm: 10.5KG
Moscow GRC Charcoal Tall Trough 900: L900 W450 H900mm: 22KG
https://sigmaplanters.com.au/product/alaska-grc-white-trough/
Alaska GRC White Trough 1000: L1000 W450 H450mm: 12.5KG
Alaska GRC White Trough 1200: L1200 W500 H500mm: 18KG
https://sigmaplanters.com.au/product/milano-concrete-trough/
Milano Concrete Trough 800: L800 x H400 x W350mm 7kg
Milano Concrete Trough 1000: L1000 x H500 x W400mm 10kg
Milano Concrete Trough 1200: L1200 x H600 x W500mm 15kg
Milano Concrete Trough 1500: L1500 x H500 x W400mm 20kg
Milano Concrete Trough 1800: L1800 x H400 x W350mm 20kg
Milano Concrete Trough 2000: L2000 x H500 x W400mm 24kg
Milano Concrete Trough XL 1800: L1800 x H600 x W500mm 25kg
Milano Concrete Tall Trough 800: L800 W350 H800mm: 15Kg
Milano Concrete Tall Trough 1000: L1000 W400 H1000mm: 24Kg
Milano Concrete Tall Trough 1200: L1200 W350 H800mm: 22Kg
Milano Concrete Tall Trough 1500: L1500 W400 H1000mm: 36Kg
https://sigmaplanters.com.au/product/manhattan-trough/
Manhattan Charcoal Trough 800: L800 x H400 x W350mm 7kg
Manhattan Charcoal Trough 1000: L1000 x H500 x W400mm 10kg
Manhattan Charcoal Trough 1200: L1200 x H600 x W500mm 15kg
Manhattan Charcoal Trough 1500: L1500 x H500 x W400cm 20Kg
Manhattan Charcoal Trough 1800: L1800 x H400 x W350mm 20kg
Manhattan Charcoal Trough 2000: L2000 x H500 x W400mm 24kg
Manhattan Charcoal Trough XL 1800: L1800 x H600 x W500mm 25kg
Manhattan Charcoal Tall Trough 800: L800 W350 H800mm: 15Kg
Manhattan Charcoal Tall Trough 1000: L1000 W400 H1000mm: 24Kg
Manhattan Charcoal Tall Trough 1200: L1200 W350 H800mm: 22Kg
Manhattan Charcoal Tall Trough 1500: L1500 W400 H1000mm: 36Kg
https://sigmaplanters.com.au/product/mykonos-concrete-white-trough/
Mykonos Concrete White Trough 800: L800 x H400 x W350mm 7kg
Mykonos Concrete White Trough 1000: L1000 x H500 x W400mm 10kg
Mykonos Concrete White Trough 1200: L1200 x H600 x W500mm 15kg
Mykonos Concrete White Tall Trough 800: L800 W350 H800mm: 15Kg
Mykonos Concrete White Tall Trough 1000: L1000 W400 H1000mm: 24Kg

Trough Planter Boxes: Sizes, Ranges & Pricing

Long Trough Planters

Long and slim, our trough planter boxes range from 1200mm to 2000mm — perfect for borders, walkways, and screening.

Tall Trough Planters

Large and Tall Trough Planters come in most ranges and sizes from 700mm to 1000mm high — privacy and vertical impact.

Large Trough Customer Reviews:

1 review for Moscow GRC Charcoal Tall Trough
  1. Antonietta

    The Moscow charcoal planter box presents my home entrance well. I have several products in this brand I purchased 3 years ago and the colour has not changed. They are still stunning and as new. I highly recommend them.

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1 review for Manhattan Fiberglass Ivory White Trough
  1. Patty H.

    I absolutely love these planters. I bought 11 Manhattan Trough for my balcony which wraps around my unit and looks fabulous ! Quality, size & weight is great and the customer service was outstanding . Thank you Sigma. I am very happy !

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Warranty?

Warranty Coverage for Trough Planters

Troughs rarely go in one at a time — they line walkways, define borders, or run the length of a façade. That means consistency across the whole order matters as much as any single unit. Every trough ships with a 3-year warranty as standard, with a 5-year option at checkout.

What’s covered:

  • Manufacturing quality across the full run — no defects, warping, or chips on any unit at delivery
  • Structural integrity — guaranteed not to crack or bow, even under the load of larger plantings in the longer trough sizes
  • Weather resistance — consistent, UV-resistant finish designed to hold its look uniformly across every unit in a multi-planter order

What’s not covered:

  • Natural aging — minor fading or hairline cracks from standard outdoor exposure
  • Damage from packaging left on more than 7 days post-delivery
  • Structural changes or external feet without full base support
  • Non-standard use, such as repurposing as a water feature

Ordering multiples for a project? The 5-year extended warranty at checkout applies per order, so it’s worth considering across the whole run rather than unit by unit — particularly for long or tall trough configurations where replacement later is more disruptive.

Submit a warranty claim →

Delivery?

Free delivery on orders over $2,000 to Brisbane, Gold Coast, Sunshine Coast, Sydney, and Melbourne. Local pickup available from our Brisbane, Sydney, and Melbourne warehouses. See full delivery rates and policy →

Need a Hand Choosing Your Planters?

Call me directly on PH: 1300 371 450 and I can walk you through sizing and finishes for your project. Or email me for a quote or any questions on sales@sigmaplanters.com.au

— Nicholas Jones, Sigma Planters

Learn More About Our Trough Planter Boxes

Quality Fiberglass and GRC Construction

Our trough planter boxes are crafted from premium fiberglass and finished with a sleek, matte industrial UV-resistant polyurethane paint. This combination delivers the strength needed for long, rectangular formats — where extra length means extra stress on the structure — without sacrificing style or longevity.

  • Superior Material: Our trough planters use top-tier resin and fiberglass strands for a denser, stronger composite that holds its shape across long spans.
  • Enhanced Thickness: Thicker construction at the base and corners provides superior resistance to impacts and cracks, especially important for oblong and long trough formats.
  • Premium Finish: Smooth, consistent finish that resists fading, chipping, and scratching. Industrial UV-resistant polyurethane paint for a luxurious look.
  • Exceptional Durability: Built to last, withstands harsh weather conditions, chemicals, and temperature fluctuations.
    Outstanding Performance: Combines strength and flexibility for versatile applications — from short trough planter boxes to extra-long 2000mm formats.
  • Investment Quality: Premium materials and craftsmanship result in a higher-end rectangle planter box.

Product Spec Sheets

Design Inspiration for Trough Planter Boxes

These versatile trough planter boxes effortlessly transition from indoors to outdoors, offering endless possibilities for your next design project

Long and Low: Our long and low trough planters are the perfect solution for defining spaces and adding structure to your outdoor or indoor areas. Use them to line walkways, creating a welcoming path that guides visitors through your garden. Alternatively, place them along borders to separate different sections of your yard or patio, adding both functionality and visual appeal. These planters are also ideal for patios, balconies, or even indoor spaces like sunrooms, where they can house a variety of plants, from herbs and succulents to flowering annuals. Their low profile ensures they blend seamlessly into any design, while their generous length provides ample space for creative planting arrangements.

Tall and Slender: For those looking to make a bold statement, our tall trough planters are the perfect choice. These planters add vertical drama to any space, drawing the eye upward and creating a sense of height and grandeur. Use them to frame entrances, where they can serve as a striking first impression for guests. They’re also ideal for accentuating corners, turning overlooked areas into focal points. Pair them with low-growing plants like ornamental grasses, trailing vines, or compact shrubs to create a balanced and visually appealing display. Indoors, they can be used to bring life to empty corners or to divide open-plan spaces with a touch of greenery.

Tiered Design: Maximise your planting space and create a dynamic, layered look with our tiered planter arrangements. By combining planters of different sizes and heights, you can design a multi-dimensional display that adds depth and texture to your garden or indoor space. This tiered approach is perfect for small areas, as it allows you to grow more plants without taking up additional floor space. Use it to create a stunning centrepiece for your patio, balcony, or even your living room. Mix and match plants with varying heights, colours, and textures to achieve a lush, vibrant look. Whether you’re growing herbs, flowers, or vegetables, a tiered arrangement ensures every plant gets its moment in the spotlight.

Planting Ideas For Rectangle Planters

Transform your planters into vibrant expressions of your personal style with these inspiring planting suggestions:

Mass Plantings: A Symphony of Abundance 

Embrace the beauty of abundance with mass plantings. By densely planting flowers, herbs, or shrubs, you can achieve a lush, full look that transforms your planter into a thriving ecosystem. Imagine a cascade of vibrant blooms spilling over the edges of your trough planter, or a fragrant tapestry of herbs creating a sensory delight. Consider using a single variety for a bold statement, or mix and match complementary colours and textures for a more dynamic effect. This technique works particularly well with low-growing, spreading plants.

Succulent Symphony: A Tapestry of Textures and Colours

For a low-maintenance yet visually captivating display, explore the world of succulents. Their unique forms and diverse colours create a fascinating tapestry that requires minimal upkeep. Combine different varieties of succulents in varying heights and textures to create a dynamic arrangement. The architectural shapes of succulents offer a modern and sculptural feel, while their drought tolerance makes them ideal for busy gardeners or those living in drier climates. Don’t forget to choose a well-draining soil mix specifically formulated for succulents.

Culinary Canvas: A Garden-to-Table Experience

Transform your trough planter into a functional and fragrant addition to your space by creating a culinary canvas. Grow a selection of your favourite fresh herbs conveniently at your fingertips. Imagine snipping basil for your pasta, mint for your tea, or rosemary for your roasted vegetables, all just steps from your kitchen. A culinary herb garden in a trough planter adds beauty, fragrance, and practicality to your outdoor space, bringing the garden-to-table experience to life. Consider grouping herbs with similar watering needs together for optimal growth.

Projects Using our trough garden pots

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