Est. 1926 - Monrovia turns 100 in 2026 22 million plants sold every year 4,000+ varieties - 250+ exclusives Nation's largest grower of premium shrubs, perennials & trees Centennial Ruby hydrangea debuts - first 5,000 individually numbered Grow Beautifully Est. 1926 - Monrovia turns 100 in 2026 22 million plants sold every year 4,000+ varieties - 250+ exclusives Nation's largest grower of premium shrubs, perennials & trees Centennial Ruby hydrangea debuts - first 5,000 individually numbered Grow Beautifully
Company Dossier • Horticulture

Monrovia:
100 Years of
Growing Beautifully

A Danish immigrant's 10-acre bet in 1926 became the largest premium plant grower in America. This is the field report.

Monrovia nursery logo - Grow Beautifully since 1926
THE GREEN POT. You have carried one out of a garden center without knowing it was a hundred-year-old argument about quality. This is the mark that argument travels under. Since 1926.
1926
Founded
4,000+
Varieties
22M
Plants / Year
~2,000
Employees

The Business of Patience

A company that sells time, disguised as plants.

Here is the strange thing about Monrovia, and it is the thing worth sitting with: it is a business built entirely on being unable to hurry.

Most companies you read about are engaged in a frantic effort to make the gap between "we had an idea" and "someone paid us money" as short as physically possible. Software companies dream of shipping a feature at 2 p.m. and having revenue by 2:15. Monrovia cannot do this. A shrub takes years. You put a small green thing in a container, you tend it, you wait, and eventually - after a span of time during which an entire venture-backed startup could have been founded, scaled, acquired, and shut down - you have something you can sell. The plant does not care about your quarterly targets. This is, if you think about it, a profoundly unfashionable way to make money, and Monrovia has been doing it for one hundred years.

The company was founded in 1926 by Harry E. Rosedale Sr., a Danish immigrant who arrived in America in 1923 with a background in the nursery trade and, apparently, a very specific ambition: to grow the highest-quality, best-looking plants in North America. He started on ten acres in the town of Monrovia, California, which is where the name comes from - not the founder, the zip code. This is a small but pleasing detail. The company is named after a place, and the place is named after James Monroe, and so a nursery in Oregon carries, at two removes, the name of a U.S. president who died in 1831. Business is full of these little archaeological layers if you look.

Since 1926, Monrovia has selected and grown the healthiest, highest quality, and best performing plants for your landscape.
- The Monrovia thesis, stated plainly

What Rosedale actually did that mattered - the thing that turned a nice regional nursery into an institution - was help pioneer the practice of growing plants in containers. Before this, if you wanted to sell a plant, you dug it out of the ground, which stressed the plant, which meant it often died shortly after the customer got it home, which is a bad outcome for a business whose entire value proposition is "this plant will live and be beautiful." Growing in containers meant the plant never had to be uprooted. It could be sold and transplanted with its roots intact and its dignity, such as it is, preserved. The container plant is now so completely normal that you would never think of it as an innovation, which is the highest compliment you can pay an innovation.

In 1941 Monrovia did something else quietly clever: it became one of the first U.S. growers to trademark a plant, a hardier pyracantha it called the Rosedale Pyracantha. Think about what a trademark on a plant means. It means the company had decided that the specific variety was the product - not "a plant," but this plant, distinguishable from all others, ownable, brandable. This is the seed (sorry) of the entire modern business, in which Monrovia's real asset is not that it grows plants but that it grows plants nobody else has. Today the catalog runs to more than 4,000 varieties, of which more than 250 are exclusives.

The Green Pot as a Financial Instrument

The branded container is the whole trick, and it is worth being precise about why. A plant is close to a commodity. A hydrangea is a hydrangea; the customer standing in the garden center cannot easily tell a well-grown one from a badly-grown one until it either thrives or dies in their yard, months later, long after the transaction. This is what economists call an information asymmetry, and it is usually a race to the bottom - if buyers cannot tell quality apart, sellers stop paying for it.

Monrovia's answer was to make the pot itself the quality signal. The distinctive container says: a company willing to put its name on this is betting that it will live. That is a brand doing exactly what a brand is for - carrying a promise across the gap where the customer cannot verify the goods themselves. Monrovia sells roughly 22 million of these promises a year, mostly through independent garden centers, increasingly through its own e-commerce channel, and the entire edifice rests on the pot meaning something. It is, functionally, a certificate of authenticity that happens to also hold dirt.

What You Can Actually Do With It

Five ways Monrovia shows up in your life.

01 / RETAIL

Buy at a garden center

Walk into an independent garden center almost anywhere in the U.S. and the branded green pots are Monrovia's - shrubs, perennials, trees, conifers, edibles, succulents and more.

02 / E-COMMERCE

Shop online

Browse thousands of varieties on monrovia.com, filter by your hardiness zone, and order for pickup at a local retailer or delivery.

03 / EXCLUSIVES

Get plants no one else has

250+ exclusive varieties - like the Seaside Serenade hydrangeas or Dan Hinkley's Tectonic Begonias - are found only under Monrovia's label.

04 / PROS

Spec for a landscape

Landscape architects and professionals source proven, climate-matched plants at scale, grown across regional nurseries.

05 / LEARN

Grow more confidently

Care guides, plant-finder tools and the Grow Beautifully resources help home gardeners pick the right plant for the right spot.

06 / CENTENNIAL

Collect a legend

The 2026 "Landscape Legends" program spotlights the 100 best selections of the last century - plus the numbered Centennial Ruby hydrangea.

By The Numbers

A century, measured in plants.

Varieties grown4,000+
Exclusive varieties250+
Plants sold / year~22 million
Years in business100
Employees~2,000
Figures compiled from public company statements and third-party profiles; some are approximate.

The scale is easy to state and hard to feel. Four thousand varieties is not a catalog, it is a small nation of plants, each with its own soil preference, water schedule, and opinion about frost. Twenty-two million units a year is a logistics problem dressed as a garden.

The unglamorous engine underneath is geography. Monrovia grows across a network of regional nurseries so that a plant bred to love the humid South is not shipped off to freeze in the North. "Climate-adapted" is not marketing here - it is a supply-chain decision made thousands of times over. That's why the company that started in sunny Azusa, California now runs its headquarters out of Dayton, Oregon: matching plants to the places they'll actually live.

The Long Green Line

One hundred years, a few turning points.

1923
Harry E. Rosedale Sr. immigrates from Denmark with a plan to grow the best plants in North America.
1926
Monrovia founded on 10 acres in Monrovia, California. Rosedale helps pioneer growing plants in containers.
1941
Among the first U.S. growers to trademark a plant - the hardier Rosedale Pyracantha.
1953
Growing grounds relocate to Azusa, California, adding hundreds of acres of cultivation.
2024-25
Annual "Distinctive Selections" launch new exclusives - Seaside Serenade "Pebble Beach," expanded Tectonic Begonias, Bountiful Baby Blueberry.
2026
100th anniversary. Debuts "Centennial Ruby" hydrangea (first 5,000 numbered) and the "Landscape Legends" top-100 program. Centennial Celebration Week set for Aug. 24-28 in Dayton, Oregon.

Culture

They don't call themselves employees.

Inside Monrovia the operative word is "Craftsmen" - people who, in the company's own framing, use their hearts, minds and hands to produce beauty. This is the kind of thing that could be pure marketing, and maybe some of it is, but it is also a genuinely smart quality-control strategy. When a plant's success is invisible until months after it leaves your hands, you cannot inspect quality at the loading dock. You have to build it into the person doing the growing. Culture, in a business like this, is the cheapest and most durable QA system available.

The stated operating system fits on an index card: Grow Beautifully (make plants everyone can succeed with), Grow Confidently (use science - breeding and propagation - to make them resilient), and Grow Responsibly (lean on beneficial insects and organic methods, minimize chemical inputs). Three verbs a new hire can act on before lunch. The best mission statements are not paragraphs; they are instructions.

We use our hearts, minds, and hands to produce beauty.
- The Craftsman ethos

The Plant Hunter

One more detail, because it is too good to leave out. Monrovia does not simply wait for better plants to arrive. It works with breeders worldwide and, most romantically, with plant explorer Dan Hinkley, who literally hunts for new species in far corners of the world. Several Monrovia exclusives - the Tectonic Begonia series, the Shear Genius Cotoneaster, a holly fern named after a Stegosaurus - trace back to his discoveries. It is a reminder that behind the tidy green pots on the shelf there is, somewhere upstream, a person on a mountainside deciding that a particular leaf is worth bringing home.

The Field

Who else grows this?

Monrovia competes in premium ornamentals against brands like Proven Winners, Star Roses and Plants, Bailey Nurseries (Endless Summer, First Editions), Ball Horticultural and Costa Farms, plus the big-box garden supply channel. Its edge is the same one Rosedale bet on in 1926: exclusivity plus a quality signal customers learn to trust.

Fun Facts

  • The company is named after the town, not the founder.
  • Founder Rosedale started on just 10 acres.
  • The first 5,000 Centennial Ruby hydrangeas each ship with a numbered tag.
  • Rooted in California, headquartered today in Dayton, Oregon.

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