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Choosing the right what to plant in a trough planter is one of those small decisions that makes a big difference for your plants. A good trough isn’t just a container, it’s the foundation for your container garden’s root health. The wrong size or material can lead to overwatering, root rot, or stunted growth, which are all too common frustrations for plant lovers. Whether you’re lining a sunny windowsill with herbs, creating a colorful flower display on a balcony railing, or setting up a low-maintenance indoor plant shelf, the planter you pick directly impacts how often you need to water and how well your plants can thrive.

For 2026, we’ve looked at 8 popular what to plant in a trough planter models, ranging from $16.99 to $134.99. This roundup includes options from brands like Novelty, GREANER, YM and more, each with different strengths. Some are fantastic for beginner-friendly setups because they include self-watering features, while others, with their classic designs and durable materials, are better suited for long-term outdoor use. The key is matching the planter to your specific plants and lifestyle. For more ideas on creative container gardening, you might enjoy our guide on what to plant in an urn planter.

1
Prime Best Seller

GREANER Rectangle Planters for Indoor Plants

GREANER
9.7 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
The GREANER Rectangle Planters 3-pack offers durable plastic window boxes with drainage trays and elevated feet for healthy plant growth. Ideal for indoor or outdoor use, they suit beginners and experienced gardeners growing flowers, herbs, or vegetables.
Pros & Cons

Pros

  • Sturdy plastic build that won't chip or deform after repeated use
  • Multiple drainage holes (4 open, 2 reserved) for customized water control
  • Removable trays make watering and maintenance simple
  • Classic appearance fits both indoor and outdoor settings
  • Great value for a 3-pack, perfect for starting a small garden

Cons

  • Plastic material may feel less premium than ceramic or terracotta
  • Trays are separate and can slide if the planter is bumped
  • No built-in mounting hardware for hanging or wall installation
Detailed Review

The GREANER Rectangle Planters 3-pack is a practical and affordable solution for gardeners who want a clean, efficient way to grow plants on windowsills, balconies, patios, or indoors. Each planter measures 16.9x7.48x5.5 inches, offering ample space for small flowers, herbs, strawberries, or even leafy greens. The set includes three matching trays, which catch excess water and keep surfaces mess-free. This makes it an excellent choice for plant lovers who want to avoid soil leaks and water stains on furniture or floors.

A standout feature is the elevated pot feet design, which lifts the planter off the tray to allow proper airflow and drainage. This helps prevent root rot and overwatering, a common issue with standard pots. The planters also come with four pre-opened drainage holes and two reserved holes that you can open if needed, giving you flexibility based on the plants' needs. The UV-resistant plastic construction ensures that the black color won't fade quickly in sunlight, and the material is thick enough to resist cracking or warping even after multiple seasons of use.

In terms of design, the sleek black finish is simple and modern, blending well with most home decor styles. The plastic is lightweight, so you can easily move the planters around to catch better light or rearrange your display. While the plastic feels durable and strong, it doesn't have the same weight or texture as ceramic or clay pots, which some gardeners may prefer for aesthetic reasons. Also, the trays are separate pieces that can shift if the planter is accidentally knocked, so you'll need to make sure they are properly aligned after moving.

Overall, the GREANER Rectangle Planters offer excellent value for money, especially considering you get three planters with trays in one package. They are ideal for anyone starting a small indoor herb garden, brightening up a balcony with flowers, or growing vegetables in a limited space. The drainage system and durable plastic make them a reliable choice for both beginners and seasoned gardeners. If you need a no-fuss, functional planter set that looks tidy and performs well, this is a solid option to consider.

2
Prime Editor's Pick

Root & Vessel 16363 36-Inch Countryside Flower Box

Novelty
9.7 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
The Root & Vessel 36-inch flower box planter combines a classic matte brown finish with lightweight, fade-resistant plastic. It's ideal for gardeners wanting an affordable, durable planter with built-in drainage and feet for easy placement on patios or indoors.
Pros & Cons

Pros

  • Classic, versatile style works with both modern and traditional settings
  • Lightweight yet durable enough for year-round outdoor use
  • Excellent drainage control with removable plugs and raised feet
  • Suitable for both indoor and outdoor placement
  • Proudly made in the USA

Cons

  • Plastic material may not appeal to those seeking natural wood or ceramic
  • Only available in brown, limiting color options for some decor schemes
Detailed Review

The Root & Vessel 16363 36-inch Countryside Flower Box Planter is a straightforward, no-nonsense solution for anyone who wants a durable planter without breaking the bank. This box planter is designed for both indoor and outdoor use, making it a versatile choice for small patios, balconies, entryways, or even living room corners. While it doesn't try to be flashy, its classic brown matte finish fits in almost anywhere, from rustic farmhouse settings to clean modern spaces.

What really sets this planter apart is its construction. It's made from a lightweight, super tough plastic that won't crack or fade after a few months in the sun. You can move it around easily, even when it's full of soil. The built-in feet elevate the planter slightly, promoting airflow underneath and preventing water from pooling. That's a smart design touch that helps keep your plants healthy. The removable drainage plugs are another nice feature: you can keep them in for indoor plants to avoid drips, or pop them out for better drainage when outside.

In terms of build quality, this planter feels solid for plastic. It doesn't have that flimsy, cheap feel you might expect. The matte texture hides minor scuffs well. The 36-inch length gives you plenty of room for a row of flowers, herbs, or small shrubs. Just keep in mind that it's only available in brown, so if you're looking for bright colors or a specific stain, this might not be the one. Also, while plastic is practical, some folks prefer the look or breathability of natural materials like wood or terracotta.

The biggest drawback is the limited color choice and the fact that it's plastic. But for its price point and the durability it offers, the Root & Vessel planter is a solid buy. It's especially good for beginners, renters, or anyone who wants a low-maintenance planter that can handle the elements. The US-made aspect is a nice bonus if you prefer to support local manufacturing.

Overall, this planter does exactly what it promises without any fuss. It's not trying to be a trendsetter, but it's reliable, easy to use, and built to last. If you need an affordable, functional flower box that can live inside or out, the Root & Vessel 16363 is a smart choice. Just be aware of the plastic limitations and the single color option before you buy.

3
Prime Limited Time

LaLaGreen 30 Inch Outdoor Wall Planter 2 Pack

LáLáGreen
9.8 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This LaLaGreen 30-inch 2-pack planter set offers sturdy metal construction and natural coco liners at a fair price. It's a versatile choice for adding greenery to railings, fences, or windows, especially if you want a lightweight, rust-resistant option for herbs, flowers, or succulents.
Pros & Cons

Pros

  • Sturdy metal construction with rust-resistant powder coating
  • Includes natural coco liners for good drainage and aeration
  • Versatile mounting options for windows, railings, fences, and walls
  • Lightweight and easy to install with common hardware
  • Large 30-inch size fits a variety of plants

Cons

  • Coco liner can be thin in spots, so you might need extra lining for heavy soil or frequent watering
  • Does not include mounting hardware, so you'll need to supply your own screws, zip ties, or hooks
  • Coco liner can dry out quickly, requiring daily watering for moisture-loving plants like flowers
Detailed Review

The LaLaGreen 30 Inch Outdoor Wall Planter (2 Pack) is a practical and attractive solution for adding greenery to your home's exterior. These black metal window boxes come with natural coco coir liners and are designed to hang on windows, railings, fences, balconies, porches, or even walls. If you're looking to dress up a plain railing or create a mini herb garden by your kitchen window, this set offers a versatile and affordable option.

What stands out most is the build quality. The metal frame feels sturdy yet lightweight, and the powder coating helps protect against rust, so you can leave them outside through the seasons. The included coco liners are a nice touch, providing excellent drainage and air flow for plant roots. Many users have found them perfect for strawberries, succulents, and herbs, though a few noted the liner can be thin in spots. For heavy soil or plants that need constant moisture, you might want to add a plastic liner or extra coco fiber to prevent water from draining too fast.

Installation is straightforward, but it's worth noting that the planters don't come with mounting hardware. You'll need to supply your own screws, zip ties, or S hooks depending on where you plan to hang them. Most reviewers found this easy to work around, with many using zip ties for a quick and secure attachment to railings. The 30-inch size is generous, giving you plenty of room for a mix of plants, and the black color blends nicely with most outdoor settings.

On the downside, the coco liner's tendency to dry out quickly means you'll need to water frequently, especially in hot weather or for flowering plants. Some users also mentioned that the liner can be a bit thin, so reinforcing it might be necessary for long-term use. However, these are minor trade-offs for the price and overall versatility of the set.

Overall, the LaLaGreen 30 Inch Outdoor Wall Planter 2 Pack is a solid choice for anyone wanting to add some life to their outdoor space without breaking the bank. It's well-made, easy to install, and works for a wide range of plants. If you're comfortable with a little DIY for mounting and don't mind an occasional watering routine, these planters will serve you well.

4
Prime Top Rated

Veradek Midori Long Trough Planter 31 inch 2 Pack

VeradekOutdoor
9.8 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
The Veradek Midori Long Trough Planter delivers a sleek, modern look with durable plastic that resists weather and UV damage. It comes fully assembled with pre-drilled drainage and saucer trays, making it great for herbs, flowers, or succulents on patios or decks.
Pros & Cons

Pros

  • Fully assembled with no tools required, just add soil and plants.
  • High-grade plastic feels sturdy and holds up to sun, rain, and frost without fading or warping.
  • Minimalist design looks expensive and elevates both indoor and outdoor spaces.
  • Drip trays included, so you can use them on decks or indoors without water damage.
  • Lightweight yet robust enough for regular use, easy to move when needed.

Cons

  • Not ideal for deep-rooted plants due to the 10-inch width and 15.25-inch height.
  • Some users might prefer a heavier material like ceramic, though the plastic is still durable.
  • Stabilizer bars require a small amount of assembly inside the planter (simple slide-in).
Detailed Review

The Veradek Midori Long Trough Planter (31 inch, 2 Pack) is a solid choice for anyone wanting a clean, modern look in their garden or home. Made from high-grade plastic that handles everything from freezing winters to scorching summers, these planters are built to last. The matte black finish gives them a premium vibe, and they come fully assembled with drainage holes and matching saucer trays. They are especially good for herbs, flowers, succulents, and other shallow-root plants on patios, balconies, or window ledges.

Out of the box, you will find two sturdy planters, two drip trays, and two stabilizer bars that prevent the sides from bulging when filled with soil. Setup is straightforward: just slide the bars into the slots inside, then fill and plant. The plastic is thick and feels much better than typical cheap resin planters. It resists UV fading and cracking, as confirmed by long-term reviewers who have used Veradek products for years without issues. The built-in drainage holes let excess water escape, and the trays catch any drips, so you can safely use them on wood decks or indoors.

Design wise, these troughs are minimalist and understated. The 31-inch length and 10-inch width make them ideal for lining a railing, creating a privacy screen, or adding greenery to narrow spaces. They are lightweight enough to move around, but sturdy enough to stay put once filled. The included stabilizer bars are a thoughtful touch they keep the planter looking crisp even with heavy potting mix.

One potential downside is the size. At just over 15 inches tall and 10 inches wide, it works best for shallow-root plants. If you want to grow large shrubs or deep-rooted vegetables, you might need a taller or wider planter. Also, while the plastic is durable, some people prefer the feel of ceramic or wood, but the Veradek material is a practical compromise between weight and longevity. The stabilizer bars require a few seconds to install, but that is the only assembly needed.

Final verdict: The Veradek Midori Long Trough Planter is a reliable, good-looking option for modern gardeners. Its weather resistance, ease of use, and clean design make it a smart buy for anyone upgrading their outdoor or indoor plant display. With a 4.6-star rating from over a hundred reviews, it is clear that most users are very satisfied with their purchase.

5
This 2-pack of YM 24-inch window boxes comes with natural coconut coir liners and sturdy metal frames. They are perfect for adding flowers to your balcony, window, or fence railings without taking up floor space.
Pros & Cons

Pros

  • Breathable natural coco liner helps prevent overwatering and root rot.
  • Sturdy metal construction holds up well in hot, dry, and wet weather.
  • Saves valuable floor space by letting you hang plants on railings or walls.
  • Modern yet rustic look blends with many outdoor decors.

Cons

  • Shallow depth (about 5 inches) may limit root space for larger plants.
  • Coco liners can shed small fibers initially when first handled or planted.
Detailed Review

The YM 24-inch window boxes offer a practical and attractive way to bring greenery to your outdoor spaces without sacrificing floor area. This 2-pack set includes metal hanging baskets and natural coconut coir liners, making them a complete solution for anyone looking to brighten up a balcony, fence line, or windowsill. They are particularly well suited for trailing plants like ivy or petunias, but work fine for compact flowers and small herbs too.

What stands out most is the build quality. The metal frame is coated to resist rust, and the included coco liners are thick and tightly pressed. They allow air and moisture to move through freely, which helps prevent soggy soil and keeps roots healthier. The liners fit snugly into the baskets and hold up well over time, though you may notice a bit of loose fiber when you first open them.

Installation is straightforward thanks to the included hanging brackets and zip ties. You can mount these planters on deck railings, window frames, or even fence posts. The 24-inch width provides enough room for a nice display, but keep in mind the depth is only about 5 inches. That means they are best for shallow-rooted plants. If you try to put deep-rooted flowers or vegetables in them, growth could be stunted.

Another upside is their versatility. The simple black or brown finish fits a variety of styles from modern to rustic. You can use them on a front porch, along a garden pathway, or even as part of a wedding centerpiece. The price for a two-pack also offers good value compared to buying individual planters with separate liners.

Overall, the YM window boxes are a solid choice for casual gardeners and decor enthusiasts who want to maximize vertical space. They are durable, breathable, and easy to set up. Just be realistic about what you plant, and they will serve you well for many seasons.

6
Prime

Novelty Countryside 36-Inch Flower Box Planter

Novelty
9.6 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This 36-inch flower box from Novelty is a lightweight yet durable plastic planter with a classic terracotta finish. It offers good drainage and UV resistance, making it ideal for outdoor window boxes or porches, though some users note it can bow under heavy soil.
Pros & Cons

Pros

  • Lightweight and easy to move even when filled with soil
  • Fade-resistant and frost-proof for long-lasting outdoor performance
  • Affordable price for a large, well-made planter
  • Built-in drainage plugs allow flexible indoor/outdoor use
  • Proudly made in the USA with quality plastic

Cons

  • Plastic can bow in the center when filled with wet soil; center support may break
  • Only two small drainage holes initially; you may need to drill additional holes for proper drainage
  • Some users report the plastic feels thinner than expected for the price
Detailed Review

The Novelty Countryside Flower Box Planter is a lightweight, weather-resistant plastic planter designed for windowsills, porches, decks, or walkways. It's made in the USA from recyclable polypropylene, giving it a classic terracotta matte finish that blends nicely with both traditional and contemporary settings. This 36-inch version holds up to 13.9 quarts of soil, making it a solid choice for flowers, herbs, or even small vegetables.

One of its standout features is the built-in drainage system. It comes with removable rubber plugs so you can use it outdoors with full drainage or indoors without dripping. The integrated feet also lift the planter slightly, allowing air to circulate underneath and reducing the chance of water damage to surfaces. The lightweight plastic is UV-resistant and frost-proof, so it can stay outside through all seasons without cracking or fading.

Real-world performance has generally been positive, but some users have noted a couple of weaknesses. The plastic, while durable, can bow in the center when the planter is fully loaded with wet soil. A center support piece is included to prevent this, but a few reviewers found that support broke during installation. Others mentioned that only two small drainage holes are pre-drilled, requiring additional drilling for adequate drainage with heavy plantings.

Despite these drawbacks, the planter has a high satisfaction rate among buyers who appreciate its lightweight design and affordability. One creative reviewer even uses it as a chicken waterer, praising its toughness. Overall, it's a good value for those looking for an easy-to-handle, long-lasting flower box that won't rust or rot. Just be aware of the potential for bowing and plan to add extra drainage holes if you'll be planting moisture-loving flowers.

Specifications

Brand: Novelty

Model: 16365

Size: 36 inches long x 8 inches wide x 6.5 inches tall

Material: Type-5 recyclable polypropylene plastic

Color: Terracotta matte finish

Soil Capacity: 13.9 quarts (dry)

Weight: 1.5 pounds

Features: Removable drainage plugs, built-in feet, UV-resistant, frost-proof

Mounting Type: Inside mount or outside mount; can sit on brackets or ground

Made in: USA (Lancaster, PA)

7
Prime

Windiy Rustic Wooden Planter Box 17.3" L x 3.9" W

windiy
9.4 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This Windiy rustic wooden planter box is a narrow 17.3-inch rectangular box with a removable plastic liner, ideal for succulents or small plants on windowsills. It offers charming farmhouse style but is lightweight and best for indoor use, with mixed reviews on durability.
Pros & Cons

Pros

  • Attractive rustic design with a natural wood grain appearance
  • Plastic liner prevents water damage and makes cleanup easy
  • Lightweight and easy to reposition around the home
  • Versatile for plants, candles, or decorative arrangements

Cons

  • No drainage holes in the box or liner, which may lead to overwatering if not modified
  • Some users report the wood feels thin and may not hold up outdoors
  • Small size may not suit larger plants or those needing deep soil
Detailed Review

The Windiy Rustic Wooden Planter Box is a narrow rectangular box designed for small plants and decorative arrangements. It measures 17.3 inches long by 3.9 inches wide and tall, making it a good fit for windowsills, mantels, or tabletops. This planter is aimed at those who want a farmhouse or rustic look for succulents, air plants, or even candles and mason jars.

The standout feature is the removable clear plastic liner, which helps contain soil and water to prevent leaks. This makes the box suitable for indoor use without worrying about damaging surfaces. The wood is made from natural aged pine with a warm brown finish, giving it a charming, country feel. The bottom is smooth to avoid scratching furniture.

In real-world use, the planter is lightweight and easy to handle, but some users note the wood feels thin and may not be durable enough for outdoor exposure. The lack of drainage holes is a common concern, though some buyers have cut holes in the liner to improve drainage. It works best for dry environments or plants that don't need much water.

Design and build quality are mixed. While many appreciate the aesthetic and find it sturdy enough for indoor display, a few reviews mention the wood can be flimsy or that the box is smaller than expected. It's best suited for decorative purposes rather than heavy gardening.

Overall, the Windiy planter is a good choice if you need a rustic, lightweight container for small plants or table decor. Just be aware of its limitations with drainage and outdoor use. It's a solid option for farmhouse-style interiors or as a gift for casual plant enthusiasts.

Specifications

Color: Brown
Style: Country Rustic
Shape: Rectangular
Material: Pine Wood, Plastic
Dimensions: 17.3 x 3.9 x 3.9 inches
Interior Size: 16.7 x 3.5 x 3.6 inches
Liner Size: 16 x 3.5 x 3.5 inches
Wood Thickness: 0.3 inches
Weight: Lightweight
Mounting Type: Tabletop
Indoor/Outdoor Use: Indoor
Number of Pieces: 1
Unit Count: 1 Count
Included Components: Liner

8
Prime

Oliz 4-Pack Self-Watering Window Box Planter

Oliz
9.9 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This Oliz 4-pack self-watering window box planter is a solid choice for growing herbs, flowers, or succulents on a windowsill or balcony. Its 1-liter water reservoir keeps plants hydrated for up to 10 days, making it ideal for busy plant owners or frequent travelers.
Pros & Cons

Pros

  • Self-watering feature reduces maintenance and watering frequency.
  • Durable, thick plastic construction resists cracking and fading.
  • Versatile size fits most windowsills and small spaces.
  • Includes drainage holes and trays for healthy plant growth.
  • Good value for a 4-pack at this price point.

Cons

  • No reviews yet, so long-term reliability is unverified.
  • Color is only available in white, limiting decor options.
  • May be too shallow for deep-rooted plants like tomatoes.
Detailed Review

If you are looking for a no-fuss way to keep your herbs, flowers, or succulents thriving, the Oliz 4-pack self-watering window box planter is worth a look. This set includes four 17 x 5.1 x 6 inch rectangular pots in a clean white finish, designed for use on windowsills, balconies, desks, or garden shelves. The self-watering system uses an absorbent cotton rope that wicks water from the reservoir to the soil, so your plants get consistent moisture without daily watering.

The standout feature is the 1-liter water storage capacity, which can keep plants hydrated for up to 10 days. That is a real plus if you travel or have a busy lifestyle. The pots also have multiple drainage holes and air holes at the bottom, which help prevent overwatering and root rot. The thick PP plastic feels sturdy and is rated to hold up to 300 kg, so these planters should hold up well against sun, wind, and regular use.

Design-wise, the minimalist white look is versatile and blends into most home or office settings. Each pot comes with a matching tray to catch drips, making them suitable for indoor use on furniture. The size is generous for a window box, but it is not too deep, so it works best for shallow-rooted plants like lettuce, basil, succulents, or small flowers.

One thing to keep in mind is that there are no customer reviews yet, so the long-term durability of the self-watering mechanism is unproven. The pots are only available in white, which might not suit everyone's taste. Also, if you want to grow deep-rooted vegetables like tomatoes or peppers, these may be too shallow.

Overall, the Oliz self-watering planter set offers a practical, low-maintenance solution for growing small plants. It is a solid choice for beginners or anyone who wants to keep plants healthy with less effort. If you need a reliable set of window boxes for herbs or flowers, this is a good buy.

Specifications

Brand: Oliz

Set Includes: 4 planters with trays

Dimensions (each): 17 x 5.1 x 6 inches

Weight (set): 1.92 kg

Material: Thickened PP plastic

Color: White

Water Capacity: 1 liter per pot

Self-Watering: Yes (cotton rope wicking system)

Drainage: Multiple holes plus air holes

Indoor/Outdoor: Both

Common Questions About What To Plant In A Trough Planter

What are the best plants for a shallow trough planter?

Shallow troughs, often between 4 to 6 inches deep, are ideal for plants with shallow root systems. Great choices include many herbs like thyme, oregano, and mint, as well as succulents, lettuce, and shallow-rooted annual flowers like pansies. Avoid plants that need deep soil for large taproots, like tomatoes or carrots.

How important are drainage holes in a trough planter?

Proper drainage is absolutely critical for preventing root rot. Without drainage holes, water pools at the bottom, suffocating roots. Most quality planters come with pre-drilled holes or removable plugs. If you fall in love with a decorative box without holes, you can use it as a cache pot by placing a plastic nursery pot with holes inside it.

Can I use a trough planter indoors and outdoors?

Many materials are versatile, but you must check the product specifications. Planters labeled for all-weather or UV-resistant use are safe outdoors. For indoor use, ensure the material is safe and has a drip tray to protect surfaces. A planter that works well in both settings offers great flexibility for moving plants with the seasons.

What’s the benefit of a self-watering trough planter?

Self-watering planters, like some in this list, have a built-in water reservoir. This design provides a consistent moisture level to the roots from below, which can prevent both over and under-watering. They are a fantastic option for busy people, frequent travelers, or for moisture-loving plants that struggle with drying out too quickly on a sunny windowsill.

Should I use a liner in a metal trough planter?

Using a liner is generally a good idea. It protects the metal from constant moisture and soil acids, which can cause rust over time. Many metal planters, like the horse trough styles mentioned, come with a coco coir liner. This natural material is excellent for plant health as it provides good aeration and drainage while keeping the soil contained. For more on plant nutrition in containers, see our tips on the best fertilizers.