Lily vs. Lilly: Which Spelling Is Correct? Meaning and Usage

You are typing a card, a caption, or a baby-name list, and you stop. Is it Lily or Lilly? Both look right. Both sound identical. One of them is probably a typo.

This guide settles the question. You will see which spelling is correct, where each one comes from, how the plural works, and when the double-L version is perfectly fine. Every section is built so you can find the answer fast and move on.

Lily or Lilly – Quick Answer

Lily (one L in the middle, ending in -y) is the correct spelling of the flower and the standard spelling of the word in both British and American English.

Lilly (double L) is not the dictionary spelling of the flower. It is used as a variant girls’ name, a nickname for Lillian, and a surname, as in Eli Lilly and Company.

In short:

• Writing about the flower? Use lily.
• Writing about a person named Lilly? Spell the name the way that person spells it.
• Not sure? Choose lily. It is right far more often than it is wrong.

The Origin of Lily or Lilly

The word lily has a long history. Dictionaries trace it from Middle English lilie, which came from Old English lilie. That form came from the Latin lilium (plural lilia), and Latin borrowed it from Ancient Greek leírion. Some etymologists link the Greek word to even older Egyptian roots.

Notice what the trail looks like. Every step has a single L in the middle and ends in a vowel sound. There is no double L anywhere in the botanical line.

Where the Double L Comes From

So why does Lilly exist at all? There are three common reasons.

1. English spelling habits. English often doubles a consonant after a short vowel. Think of silly, hilly, billy, and Molly. Because the “i” in Lil- is short, writers instinctively add a second L. Lilly simply follows that pattern.
2. Surnames. Lilly became a family name in England. British surname records describe it as English in origin, linked to the medieval personal name Lil(l)y and the Old French word for the flower. Surnames were spelled loosely for centuries, so spelling variants stuck.
3. Nicknames for longer names. Lillian and Elizabeth have both produced nicknames such as Lilly and Lillie. The double L in Lillian often carries over into the short form.

Historical baby-name records show that both spellings were in use more than a century ago. In other words, Lilly is not a modern mistake. It is an old variant that has lived next to Lily for generations. It simply never became the standard way to spell the flower.

The Word’s Meaning

Today, lily refers mainly to flowering plants in the genus Lilium, part of the family Liliaceae. These plants grow from bulbs and produce large, trumpet-shaped or star-shaped blooms.

The word also appears in many compound plant names, such as calla lily, day lily, Easter lily, water lily, and peace lily. Some of these are not true lilies at all. The calla lily, for example, belongs to a different plant family despite its name.

Outside the garden, lily carries symbolic weight. White lilies often stand for purity, renewal, and remembrance. The Madonna lily has long been tied to religious art, and Easter lilies are a familiar sight in spring. That symbolism is one reason the word became such a popular girls’ name.

British English vs American English Spelling

Many readers assume Lilly might be the British version and Lily the American one, or the other way around. Neither is true.

British and American English split on words like colour/color, centre/center, and organise/organize. The word lily is not on that list. Both varieties spell it the same way, and both list lily as the standard form.

The takeaway is simple. If you see a spelling debate framed as “UK vs US,” it is based on a myth. The difference is not regional. It is about word type: a common noun versus a proper name.

Which Spelling Should You Use?

The right choice depends on what you are naming. Use this quick guide.

For the Flower

Always write lily. This applies to gardening articles, florist menus, product descriptions, school essays, and poetry. A double-L spelling will look like a typo to most readers, and it will be flagged by spell checkers.

For a Person’s Name

Spell the name exactly as the person spells it. Some people are Lily, some are Lilly, and some are Lillie. A name is not a dictionary entry. It belongs to the person who carries it, and getting it wrong in a wedding invitation, email, or byline can feel careless.

If you are choosing a spelling for a baby, a pet, or a fictional character, here are a few points to weigh:

• Lily is the most familiar and the easiest for others to spell.
• Lilly looks a little more playful and often pairs naturally with Lillian.
• Lillie has a vintage feel and is the least common of the three.
• Any version of the name will be mispronounced or misspelled by someone now and then. That is normal.

For a Brand or Company Name

Follow the official spelling. Eli Lilly and Company, the pharmaceutical firm, uses the double-L form because it comes from the founder’s surname. Lilly Pulitzer, the fashion brand, does the same. Changing the spelling in a news story or report would introduce an error.

For Plant Names in Technical Writing

Use lily for common names and Lilium (italicised, capitalised) for the genus. Never use Lilly in botanical writing.

Common Mistakes with Lily or Lilly

Most errors fall into a few predictable patterns. Here are the ones that show up most often.

Mistake 1: Spelling the Flower “Lilly”

This is the most common slip. Because Lilly feels natural to type, many writers use it for the plant. In flower contexts, it is wrong.

• ❌ She planted a row of white lillys along the fence.
• ✅ She planted a row of white lilies along the fence.

Mistake 2: Forming the Plural With “-s”

Lily ends in a consonant followed by “y,” so the plural changes the ending.

• ❌ lilys, lillys
• ✅ lilies

Mistake 3: Confusing the Possessive With the Plural

An apostrophe signals ownership, not a plural.

• ❌ The lily’s are in bloom. (This suggests ownership.)
• ✅ The lilies are in bloom.
• ✅ The lily’s petals are white. (One flower owns the petals.)
• ✅ The lilies’ fragrance filled the room. (Several flowers own the fragrance.)

Mistake 4: “Correcting” a Person’s Name

A spell checker may underline Lilly in red and suggest Lily. If the person’s name is Lilly, ignore the suggestion. Proofreading a name against a dictionary is a trap.

Mistake 5: Changing a Company Name

Writers sometimes “fix” Eli Lilly to Eli Lily. Proper nouns are exempt from standard spelling rules, so the original form must stay.

Mistake 6: Mixing the Spellings in One Document

Pick one form for each use and keep it consistent. If you are writing about a character named Lilly, do not switch to Lily halfway through.

Mistake 7: Mixing Up Lily With Similar Names

Related names such as Lillian, Lilian, Liliana, Lillie, and Lilia all exist. They are separate names with their own spellings. Do not merge them.

Lily vs. Lilly: At a Glance

Here is the whole topic in a short list.

• Lily is the correct dictionary spelling of the flower.
• Lily is also the most popular spelling of the girls’ name.
• Lilly is a variant name and a well-known surname.
• Lilly is not the standard spelling of the flower in any major English dictionary.
• Both spellings are pronounced the same way: LIL-ee.
• The plural of lily is lilies.
• British and American English use the same spelling.
• Proper nouns, such as brands and people’s names, follow their own spelling.

Lily or Lilly in Everyday Examples

Seeing the words in context makes the difference easier to remember. Below are common situations where the question comes up.

Gardening and Floral Writing

• “Plant lily bulbs in autumn for summer blooms.”
• “The florist arranged three stems of Oriental lilies in a tall vase.”
• “Water lilies spread across the surface of the pond.”
• “A peace lily thrives in low light, but it still needs regular watering.”

Names of People

• “My niece Lily starts school this September.”
• “Lilly told us she was moving to Toronto.”
• “Please address the card to Lilly Anderson, with two L’s.”

Companies and Brands

• “Eli Lilly and Company is headquartered in Indianapolis.”
• “The Lilly Pulitzer collection is known for bright prints.”

Idioms and Fixed Expressions

• “The cloth was lily-white.” (Very pale or pure.)
• “He was called lily-livered after he ran from the fight.” (Cowardly.)
• “She was gilding the lily with all those extra decorations.” (Adding something unnecessary to something already beautiful.)
• “Lily pad” refers to the floating leaf of a water lily, and it is also used humorously for a stepping spot.

Each of these uses the single-L spelling because they relate to the flower or its imagery. Names and brands are the only exceptions.

What Is the Plural of Lily?

The plural of lily is lilies.

The rule is a common one in English. When a noun ends in a consonant plus “y,” change the “y” to “i” and add “-es.”

Plural of Lilly

When Lilly is a name, the plural follows the same pattern in speech and writing, though you will use it rarely. If you must refer to more than one person, you could say “the two Lillys” or “the two Lillies.” Both forms appear in practice, and style guides tend to prefer “Lillys” for names, because a name keeps its original spelling when pluralised. Whichever you pick, stay consistent.

Possessive Forms at a Glance

A Quick Note on Compound Plurals

For compound names such as calla lily, only the final word changes. Write calla lilies, water lilies, and day lilies. Do not write “callas lily.”

Lily or Lilly – Google Trends & Usage Data

Search interest tells us something helpful about how people think about these spellings. We cannot quote exact figures here, because trends data changes daily, but the overall pattern is consistent and easy to verify.

What the Pattern Shows

• Lily dominates both general searches and name-related searches.
• Lilly gets a steady stream of searches. Much of that interest comes from people checking whether it is correct, from people searching for the surname, and from searches tied to brand names.
• Questions such as “is it lily or lilly” are common because the two forms look so close.
• Searches for lily meaning and lily flower meaning tend to rise around spring holidays and wedding season, when flowers are in demand.

What Baby-Name Records Add

Official baby-name statistics in the United States show that Lily has been a far more popular choice than Lilly for years. Lilly still ranks as a recognisable name and remains in regular use. Lillie, the third variant, is rarer still.

Historic records suggest the gap used to be smaller. More than a hundred years ago, the two spellings were close in popularity. Over time, the single-L form pulled ahead, probably because it matches the word for the flower and is simpler to spell.

How to Check Current Numbers Yourself

If you want live data, try these steps:

1. Open Google Trends and type lily and lilly as two comparison terms.
2. Set the region to your country and the time range to five years.
3. Add related queries such as “lily meaning” and “lilly name.”
4. Check the Social Security Administration’s baby-name tool for U.S. name rankings.

This takes about two minutes and gives you current, first-hand evidence.

How to Use Lily and Lilly in Sentences

Practice makes spelling choices automatic. Here are model sentences, grouped by purpose.

Lily as a Common Noun

1. The garden was full of fragrant lilies.
2. A single white lily stood on the altar.
3. She tucked a lily behind her ear.
4. The Easter lily is a spring tradition in many homes.
5. We bought a lily plant for the office windowsill.

Lily as a Name

1. Lily loves painting with watercolours.
2. I asked Lily to join us for dinner.
3. The book’s main character is a girl named Lily.

Lilly as a Name

1. Lilly just finished her first marathon.
2. Please send the invoice to Lilly in accounts.
3. My cousin Lilly spells her name with two L’s.

Lilly as a Surname or Brand

1. Dr. Lilly will see you now.
2. The scientist worked for Eli Lilly and Company.
3. She wore a dress from the Lilly Pulitzer line.

Tips for Writing These Sentences Correctly

• Capitalise Lily and Lilly when they are names. Keep lily lowercase when it is the flower.
• Capitalise Easter lily only at “Easter,” because the holiday name is a proper noun.
• Do not italicise common plant names. Italicise the Latin genus, Lilium.
• Keep a consistent style across the whole piece.

Is Lilly a Different Flower?

Also Read This:Kindergarten vs. Kindergarden: Correct Spelling, Meaning, and Examples

No. There is no separate flower called a lilly. If you see the word on a plant label, a garden blog, or social media post, it is a misspelling of lily.

This question comes up often because some flowers use the word “lily” in their name but are not true lilies. That is a different issue from the spelling. Here is a short explanation.

True Lilies

True lilies belong to the genus Lilium. They grow from scaly bulbs and include:

• Asiatic lilies
• Oriental lilies
• Trumpet lilies
• Madonna lilies
• Easter lilies
• Tiger lilies

“Lilies” That Are Not True Lilies

Several popular plants carry the name but belong to other plant groups.

• Calla lily: a flowering plant from a different family, with a single funnel-shaped bloom.
• Peace lily: a common houseplant from the arum family.
• Water lily: an aquatic plant with floating leaves.
• Daylily: a hardy perennial that is not a true lily. Each bloom lasts about a day.
• Lily of the valley: a small, bell-flowered plant from a different family.

The spelling for all of these is still lily. None of them is a “lilly.”

A Note on Pet Safety

Gardeners should know one practical fact. Many true lilies and daylilies are highly toxic to cats. Even small amounts of pollen or water from a vase can cause serious kidney problems. If you share a home with a cat, check with a veterinarian before bringing lilies indoors. If your cat has chewed any part of a lily, contact a vet urgently.

Comparison Table: Lily vs Lilly

This table pulls the whole topic together.

How to Decide in Five Seconds

Ask yourself two questions:

1. Is it a flower or a thing? Use lily.
2. Is it someone’s or something’s official name? Copy the official spelling.

If the answer to both is “I don’t know,” default to lily and check the source.

Conclusion

Lily is the correct spelling of the flower in both British and American English, and it is also the more popular spelling of the girls’ name. Use lilies for the plural, and keep your apostrophes in check.

Lilly is a valid variant for names, nicknames, brands, and surnames, but not for the plant. When in doubt, write lily, and copy any person’s or company’s spelling exactly as it appears.