SKU: 51223333045
12 inch plastic planter with drainage

12 inch plastic planter with drainage Julian Rectangle Block Fiberglass Planter Box, 30" x 12" x 24" Trough Span w/ Drainage - Barrier, Divider Outdoor / Indoor

$24.69 $27.43
Save 10%
No.2 Bestseller on piotrzbierski.com >

Pay in installments of $6.86 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

12 inch plastic planter with drainage Julian Rectangle Block Fiberglass Planter Box, 30" x 12" x 24" Trough Span w/ Drainage - Barrier, Divider Outdoor / IndoorJulian Rectangle Fiberglass Planter Steel Reinforced Long Block Trough Indoor Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony Define Your Space with Clean, Modern Lines Material: Professional grade fiberglass for extreme durability and a refined aesthetic. Structural Integrity: Internal steel reinforcement to ensure perfectly straight, parallel walls along the 30" length. Application: Ideal for narrow spatial division, privacy screening,

Julian Rectangle Fiberglass Planter - Steel Reinforced Long Block Trough - Indoor / Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony

Define Your Space with Clean, Modern Lines

  • Material: Professional-grade fiberglass for extreme durability and a refined aesthetic.

  • Structural Integrity: Internal steel-reinforcement to ensure perfectly straight, parallel walls along the 30" length.

  • Application: Ideal for narrow spatial division, privacy screening, and defining walkway perimeters.

  • Indoor / Outdoor: Beautifully finished and optimized for high-traffic commercial interiors, rooftop decks, and contemporary residential balconies.

  • Finish: All-weather, UV-resistant architectural Matte Black.

  • Durability: Engineered to be shatterproof, frost-proof, and fade-resistant for year-round exposure.

  • Weight: High strength-to-weight ratio allows for easy placement while maintaining structural stability.

  • Drainage: Equipped with pre-drilled drainage holes and removable rubber plugs.

  • Free Fast Shipping - All Orders.

  • Dimensions: 30"L x 12"W x 24"H

Why Designers Choose the Julian Rectangle

The Julian Rectangle is the premier choice for professionals looking to maximize impact in narrow spaces. While a cube anchors a corner, this rectangular trough defines a line. If you have ever seen a standard plastic or resin trough "bow" or "belly" outward after being filled with soil, you will recognize the necessity of the Julian’s industrial-grade construction. It is designed to be a permanent, design-forward extension of your architecture.

In professional settings, these are most often used as "living walls" to create privacy between restaurant tables or to frame the perimeter of a rooftop deck. Because the 12" width is so slim and the Matte Black finish so sophisticated, the Julian Rectangle creates a clear boundary without sacrificing floor space. It anchors the environment, allowing your greenery to create a lush, vertical curtain.

The Science: Why Steel-Reinforcement Matters for Rectangle Planters

Longer planters are particularly susceptible to "bellying"—a phenomenon where the weight of heavy, wet soil forces the long side-walls to bulge outward. This ruins the crisp, architectural silhouette. To prevent this, NMN Designs integrates internal steel reinforcement into the Julian Rectangle.

This engineering ensures that even when housing a dense row of plants, the walls remain perfectly plumb and vertical. Combined with our commercial-grade fiberglass, you get a vessel that handles extreme thermal expansion (from scorching summers to sub-zero winters) without the cracking or brittleness found in standard retail pots.

Recommended Plant Pairings for the 30" Julian:

The 12" depth of the Julian requires a thoughtful selection of root-compatible plants. We recommend the following for health, aesthetics, and performance:

For Privacy and Height (Narrow Profile Specialists):

  • Sky Pencil Holly: The gold standard for 12" troughs. Its naturally columnar shape stays narrow and vertical without needing heavy pruning, providing a "living wall" effect.

  • Blue Arrow Juniper: A stunning, silvery-blue evergreen that is much more drought-tolerant and narrow-root-compatible than traditional Arborvitae.

For High-Contrast Color:

  • Red Star Cordyline: Features deep burgundy, sword-like leaves that look striking against the Matte Black finish.

  • Golden Creeping Jenny (as a "Spiller"): Plant these at the edges to create a vibrant, lime-green "waterfall" of foliage that pops against the dark fiberglass.

For Extreme Temperatures (Heat, Wind, and Frost):

  • Karl Foerster Feather Reed Grass: Virtually "bulletproof." It handles sub-zero winters and scorching summers with ease. Its tall, wheat-like stalks provide privacy and movement in the wind.

  • Green Mountain Boxwood: Extremely cold-hardy and classic. It can be easily maintained to fit the 12" width and provides a structured, formal look year-round.

Pro-Tips for the Best Results

  • High-Wind Stability: For exposed roof decks or coastal balconies, add 3 inches of heavy gravel at the base before adding soil. This lowers the center of gravity, ensuring your privacy screen stays upright during heavy gusts.

  • Thermal Protection: While the fiberglass is frost-proof, using an insulated liner inside the planter in extreme northern climates can help protect the root balls of perennial plants, ensuring they return season after season.

The Julian Rectangle Planter is made in India by NMN Designs®

Extra Large Fiberglass Planters - How big are they?

This image below illustrates the scale of the Cube and Rectangle Planters - near a building entrance or a chair. 

Click here to see all extra large planters


Save Extra 10% OFF Entire Order ($125 Minimum) with Code GET10

Enjoy always free, fast shipping. Typically the same business day or the next.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51223333045

Discover Niche Categories That Outsell 12 inch plastic planter with drainage

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
mrtn wntr
Houston, US
★★★★★ 5
Engines run smoothly and efficiently
Color: Pack of 2
I’ve been using Sea Foam SF-16 in both my outboard motor and sailboat, and it has proven to be an invaluable product for maintaining engine performance. This motor treatment is incredibly versatile and effective, making it a staple in my marine maintenance routine. One of the standout benefits of Sea Foam SF-16 is its ability to clean and lubricate the entire fuel system. It effectively removes harmful deposits and residues that can build up over time, ensuring that my engines run smoothly and efficiently. This is particularly important for marine engines, which can be prone to issues due to the harsh operating environment. I also appreciate how Sea Foam stabilizes fuel. This is crucial for my sailboat, which sometimes sits unused for extended periods. By adding Sea Foam to the fuel tank, I can be confident that the fuel remains fresh and free from moisture, preventing potential engine problems when I’m ready to hit the water again. Another great feature is its ease of use. Simply adding the recommended amount to the fuel tank is all it takes to start seeing the benefits. I’ve noticed a significant improvement in engine performance, with smoother idling and better throttle response. It also helps reduce emissions, which is a nice bonus for the environment. Overall, Sea Foam SF-16 is a fantastic product that I highly recommend to anyone with an outboard motor or sailboat. It keeps engines clean, running smoothly, and protected from the elements, making it a must-have for any boat owner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2024
L
Verified Purchase
LJL
Lake Worth, US
★★★★★ 5
WOW-Smoother Performance-Idle Better-Easy To Use-LOVE This Stuff
Color: Pack of 2
GREAT product! I own a "mature" car with lower milage. However the low idle was off and slow, additionally learned that a Gas station provider (occasionally use) had been found to have water in their gas. After reading the reviews and learning many auto mechanics swear by Sea Foam, decided to give it a try. As a woman have experienced hype, un-necessary work etc through the years. I used a funnel to add Sea Foam to my gas tank. Wow! even on shorter trip, noticed a smoother performance. With longer driving seems to have helped the idle and running even smoother! Believe that with more use will see even better performance and hopefully better milage! Do Not Hesitate, you and your vehicle are worth it! Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
S
Verified Purchase
Soop
West Palm Beach, US
★★★★★ 5
Good stuff for small engines
Color: 3 Pack
I use this for my lawn equipment and outdoor tools. Keeps them running great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
V
Verified Purchase
Volunteer State Reviewer
Lowell, US
★★★★★ 4
One of the Few Fuel Additives I Keep Buying
Color: Pack of 2
I've been using this product in my 2015 Ford F-150 for more than five years, and it's one of the few fuel additives that has earned a permanent spot in my maintenance routine. I originally started using it as preventive maintenance, but over time I noticed the engine seemed to run smoother after treatment. It's not the kind of product that suddenly turns your truck into a race car, but it has consistently done what I hoped it would do. I've purchased and used it multiple times over the years, which probably says more than anything else I could write. If a product doesn't work or isn't worth the money, I usually don't buy it again. This one keeps finding its way back into my shopping cart. I trust the product, I've had good results with it, and I think it's a reasonable value for the money. Based on my experience, I'll continue using it as part of my regular maintenance routine. If you believe in taking care of your vehicle before problems start, this has been a worthwhile purchase for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
W
Verified Purchase
Wilderness Family
Cuba, US
★★★★★ 5
Mechanic Recommends Sea Foam -- Best Gas Treatment for All Engines
Color: Pack of 1
We have a small-engine mechanic who turned us onto SeaFoam motor treatment -- and against most gasoline preservatives and treatments. He said he'd drained, or seen inside, thousands of gasoline tanks, and the stuff sold as gasoline storage additives was often still there, sitting as gel on the bottom of the tank. Just gunk. He also said most brands of engine treatment weren't worth the money. However, he swore by SeaFoam, which I'd never tried at the time, and my experience since has proved him out. I've had many rough-running engines find their power and performance again, with nothing different, but a shot of SeaFoam in the gas tank (and the crankcase). We own a number of vehicles and equipment with small engines, from a compact backhoe, to a ride'em Husqvarna mower, weedwacker, chainsaw -- and on the larger size, a Honda SUV and Ford F150 pickup. All of them have benefited greatly from the regular use of SeaFoam. However, when we're running the road vehicles a lot, especially in the summer, we go through gas and don't necessarily add SeaFoam with every fill. Recently, the Ford began to run rough. It stalled as I pulled up to corners and lights. In the past, that would have meant a mechanic and an expensive tune-up. All I did was go for a fill-up, and started by adding a full can of SeaFoam. Problem solved, just like that. The Terramite (made in the USA) backhoe is not used a lot -- and as with most motors, that is a problem. It's bad for an engine not to run it -- and especially, in most cases, for it to sit with gas in the tank. The backhoe has a Kohler Command 25-horse gasoline engine that powers the hydraulics that run the wheels, steering, front-loader, and backhoe. I change the spark plugs each season, but it, like my Stihl chainsaw, and 6500 watt backup (gasoline) generator, and for that matter, all the small engines, can be hard to start after a hiatus. And even when they get going, they'll run rough. I used to drain the tanks frequently, then run them dry, then fill again before use, and hope for the best. But SeaFoam has changed all that. Throughout the summer, I can leave treated gas in the tank, and have little problems with starts or rough running. In the smaller equipment, I dose the gasoline with each fill (1 oz per gallon), as SeaFoam cleans both carburetors and full injection systems. It is good for gasoline and diesel engines. Added to your crankcase (1.5 oz per quart of oil), it cleans deposits and quiets noisy lifters. These days, most gasoline is mixed with ethanol and that's a bad thing for small engines. Ethanol goes hand in hand with water -- and as we all know, water in the gas is anathema to motors. Again, my small engine mechanic told me, 90% of the no-start problems he had to deal with were caused by ethanol-caused water in the fuel system. SeaFoam actually controls moisture and prevents this problem. It also de-ices and is anti-gel. In my opinion, when it comes to gasoline and diesel engines, large and small, SeaFoam is THE Silver Bullet. My equipment is often running, while my neighbors are running with theirs to the shop. I've told many about SeaFoam, but some people seem to want to do it the hard way. By the way, I also swear by PRI-G fuel additive for long-term gasoline storage. I keep 100 gallons of gas in tanks for emergency use. We are in a rural, wilderness area. I was introduced to that by survival expert, Steve Harris. He said he's had gasoline that was 10 years old still run equipment, because he'd added PRI-G to it (you can buy here on Amazon). Of course, you have to remember to add more PRI-G each year -- that's the catch. So our rule of thumb is, PRI-G for long term fuel storage -- and SeaFoam for month to month. Also -- this price is right! Of course, when you compare the cost of equipment breakdown, and having to take anything to a mechanic, this is almost free. However, apples to apples, this price is cheaper than Walmart -- and up to $4 cheaper per can than many auto supply and hardware stores. Can't say enough good things about this product! Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2015

recommand products

Philodendron
28.91
Anthurium 'Red' | Indoor Plant | Tropical Plant | Potted Plant
29.10
Dracena Flower Meaning – Symbol of Long Life & Good Luck
25.58
Dracaena Tricolour (Rainbow Tree) 200mm – BUDGET WHOLESALE NURSERY SYDNEY
25.35
Gold Dust Dracaena Plant Care - How to Grow Dracaena surculosa
27.14