Are Fiberglass Planters Worth It?

"Worth it" depends entirely on what you are comparing against. Fiberglass is not the most impact-resistant planter material, and it is worth being clear about that up front. What it does is combine low weight, freeze-thaw resistance and a real choice of finish. Whether that trio is worth paying for depends on where the planter is going.

Pros and cons of fiberglass planters

The pros are weight, frost resistance and finish choice; the cons are price, a finish that can chip, and a short wait while most planters are finished to order.

Pros

• Much easier than concrete to move around, in Jay Scotts' words, with every size's weight published.
• Frost-resistant, provided water can drain.
• An automotive-grade, UV-resistant finish in up to twenty standard colors.
• A three-year warranty from acceptance, and Jay Scotts state that their fiberglass planters can routinely last 15 to 50 years.

Cons

• They cost more than plastic.
• The finish is a surface coating, so a hard knock on a corner can chip it.
• They are light, so a tall planter in an exposed spot needs its weight kept low in the base.
• Most are finished to order: 3 to 5 business days before shipping, 5 to 7 for gloss finishes.
• Drainage holes are drilled only if you ask, and a drilled planter is final sale.

What fiberglass planters actually are

Fiberglass planters are glass fiber set in resin, molded to shape and finished with paint rather than glazed or pigmented through. Jay Scotts describe their material as fiberglass and resin, finished to order with an automotive-grade paint system — the same class of coating used on a car body, not a decorative spray.

That construction explains almost everything else about them. The shell is thin and strong, which makes them light. The finish is a coating rather than a glaze, which is why a maker can offer one shape in many colors — Jay Scotts offer most of their shapes in up to twenty standard colors. And because the coating sits on the surface, a hard enough knock takes it off.

Are fiberglass planters worth the money?

Yes, if you are buying for weight, climate or color. No, if you are buying purely on price. The honest comparison is against the three materials people actually cross-shop.

Against plasticFiberglass costs more and lasts longer outdoors. The Jay Scotts planters we carry use a UV-resistant automotive-grade finish and carry a three year warranty.

Against concreteConcrete resists impact better. Fiberglass is, in Jay Scotts' words, much easier than concrete to move around, and because it is non-porous it does not take up the water that expands on freezing.

Against metalJay Scotts note that metal planters rust and that fiberglass provides insulation for plant roots. They also describe fiberglass as suitable for outdoor use in coastal climates with high-salt content.

What most buyers overlook: the weight is not a marketing claim

This is the part that separates the materials in practice, and it is measurable rather than rhetorical.

A Jay Scotts Globe at 24 inches across weighs 12.4 lb empty. The 36 inch weighs 29.4 lb. A Jay Scotts Lima tapered square at 30 inches is 42.7 lb. At the top of our range a Montroy cube at 60 inches — five feet in every direction — is 270.9 lb, which sounds enormous until you consider what a concrete planter of those dimensions would weigh, and what it would take to get it into position.

Those are the manufacturer's own published figures, and every one of them is listed on our planter specifications page.

The practical consequence: you know exactly what you are lifting before it arrives, and before it is filled. That matters more than it sounds. It decides whether a planter can go on a roof terrace, whether it can come up a staircase, and whether a layout can be changed next year without hiring equipment. A material you can carry is a material you can change your mind about.

Do fiberglass planters last?

They last, with one condition attached: water has to be able to drain away.

Jay Scotts warrant their planters for three years from acceptance against defects in material and workmanship. Their finish is automotive-grade and UV resistant. In the manufacturer's own words, the purchaser is responsible for ensuring water can drain sufficiently from the container in outdoor use, and this is notably important in regions subject to freezing conditions.

That single sentence is the whole durability story. Fiberglass itself is not porous, so it does not absorb the water that expands on freezing and splits terracotta and concrete. But a planter with no drainage becomes a vessel holding a block of ice, and no material enjoys that. NC State Extension makes the same point about containers generally: drainage, not the material, is what decides whether a container planting survives.

Drainage is free, and it is a decision made before you orderJay Scotts drill holes at no charge at order time, to a standard of one to two inch holes roughly every 12 inches. A drilled planter is final sale.

Our drainage guide covers when you need them and when you do not, and the winter article covers what happens if you skip them.

What are the downsides of fiberglass planters?

The downsides are price, a painted finish that can chip at the corners, light weight in an exposed spot, and a short wait while the planter is finished to order. Each has a straightforward answer.

They cost more than plastic. For a planter that stays outdoors, what the difference buys is a UV-resistant automotive-grade finish and a three-year warranty from Jay Scotts.

The finish is a surface coating. It is the same class of paint used on a car body, so it is tough, but like a car it can be marked by a sharp knock on a corner. Jay Scotts' owner's guide says they offer touch-up paint kits for nicks and scratches. If that matters for where your planter is going, ask us before you order and we will check what is available.

They are light, which is usually the whole point. Low weight is what lets you carry one upstairs or put it on a roof terrace. On a tall planter in an exposed spot it simply means keeping the weight low in the base — ballast at the bottom rather than soil to the rim, which is how Jay Scotts recommend filling them anyway.

Most are made to order. Up to twenty colors per Jay Scotts shape is only possible because nothing is painted until you order it. That adds 3 to 5 business days before shipping, or 5 to 7 for gloss finishes, and it is the reason the color you want is available rather than whatever happens to be in stock. The Woodland Collection is the exception: it is kept finished in stock and ships within 1 to 2 business days.

Are fiberglass planters good for plants?

The drainage and the filling decide it.

Jay Scotts describe fiberglass planters as appropriate for growing small fruit trees, blueberry bushes, strawberries or vegetables. What matters more is what goes inside. Jay Scotts call for lightweight filler below the root zone rather than filling a deep planter with heavy garden soil or fine sand. Jay Scotts also offer internal shelves, available on select models only and at an additional cost; ask us whether one is available for the planter you are considering.

The base layerFor outdoor and long-term planting, Jay Scotts' method is permeable landscape fabric, a lightweight drainage layer such as rinsed gravel or lava rock, a second layer of fabric, then a well-draining potting mix. Jay Scotts owner's guide.

Our guide to filling a large fiberglass planter sets out the method.

So who should buy fiberglass?

Buy fiberglass if you need to move it, if you are putting it on a structure, if you live somewhere that freezes, or if the color has to match something. Those are the four cases fiberglass is built for.

Buy concrete if it will never move and impact resistance is the priority. Buy plastic if it is temporary. Buy metal if you are nowhere near the coast and you want the patina. Our guide to planter materials compares all of them side by side.

Shop the collection Fiberglass planters

Every dimension, interior opening and empty weight published before you order.

Frequently asked questions

What are the downsides of fiberglass planters?

They cost more than plastic, the painted finish can chip if a corner takes a hard knock, a tall planter in an exposed spot needs its weight kept low, and most are finished to order, which adds 3 to 5 business days before shipping, or 5 to 7 for gloss finishes.

Are fiberglass planters heavy?

Not for their size. In Jay Scotts' words, fiberglass planters are much easier than concrete to move around. A 24 inch Globe weighs 12.4 lb and a 30 inch Lima 42.7 lb; the heaviest size we sell, a 60 inch Montroy cube, is 270.9 lb. Every size's weight is on its product page.

Can fiberglass planters stay outside all year?

Yes. Jay Scotts describe their fiberglass as frost-resistant, and the finish is UV-resistant. The condition is drainage: water must be able to drain away, most of all where it freezes. Our winter guide covers what to check before the first frost.

Are fiberglass planters durable?

Yes, with drainage. Fiberglass is non-porous, so it does not absorb the water that expands on freezing and damages terracotta and concrete. Jay Scotts warrant their planters for three years and state that the purchaser is responsible for ensuring water can drain, which matters most in freezing climates.

Do fiberglass planters crack in winter?

Not from frost itself, because the material does not take up water. A planter that cannot drain is a different matter: trapped water freezing inside puts pressure on any container. On the Jay Scotts planters we carry, drainage holes are added free of charge at order time, and a drilled planter is final sale.

How long do fiberglass planters last?

Jay Scotts state that their fiberglass planters can routinely last 15 to 50 years. They cover material and workmanship for three years from acceptance. Their finish is an automotive-grade paint system, UV resistant and rated for sun exposure, all weather types and repeated use. Storing a planter in a wet carton or in standing water can damage the finish before it is ever installed.

Do fiberglass planters chip?

They can. The finish is a coating on the surface, so a corner taking a hard impact can lose paint, and corners are where it happens, usually while a planter is being carried or set down. Jay Scotts' owner's guide says they offer touch-up paint kits for nicks and scratches; ask us and we will check what is available.

Are fiberglass planters better than concrete?

Lighter, and better in freeze-thaw. In Jay Scotts' words, fiberglass planters are much easier than concrete to move around, which decides whether one can go on a roof or be repositioned later. Concrete resists impact better and suits a planter that will never move.

Are fiberglass planters worth the extra cost over plastic?

For anything staying outdoors, yes. The automotive-grade finish on the Jay Scotts planters we carry is UV resistant and carries a three year warranty behind it.

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