The Great Lemon Debate: Fruit, Vegetable, or Herbal Plant? (And Why You Should Grow It Anyway)

I was standing in the checkout line at my local garden center the other day, clutching a bag of potting soil, when I overheard a pretty heated debate between a couple. One was insisting that lemons are a fruit because, well, they grow on trees. The other was arguing that because they put lemon on their fish and in salad dressing—never just biting into it like an apple—it’s basically a vegetable. And then, just to make things messy, a third person chimed in saying they use the leaves for tea, so it’s actually an herb.

I just smiled and kept moving, but it got me thinking. In the USA, we have a weird relationship with lemons. We drink them sweet, we cook them savory, and we use their scent to make our houses smell clean. So, when you are holding a packet of lemon seeds, what exactly are you planting? A fruit tree? A vegetable crop? An herbal garden staple?

The answer is… yes. To all of it.

If you’ve been following my gardening journey for a while, you know I don’t get too hung up on textbook definitions. I care about what works in the dirt and what tastes good in the kitchen. But understanding these three "personalities" of the lemon plant can actually help you grow it better. So, grab a coffee (or a lemon water), and let’s break down the identity crisis of the humble lemon.

If you’re completely new to gardening and feeling unsure where to begin, starting from seeds can actually be simpler than it looks. For step-by-step beginner tips, you can explore The Complete Beginner’s Guide to Start a Garden from Seeds to learn the basics of planting, watering, and building your first home garden with confidence.

Personality #1: The Biological Fruit (The Science Stuff)

Okay, let’s get the science class part out of the way first. Botanically speaking, if you plant lemon seeds, you are growing a fruit. No doubt about it.

Here is the rule: if it develops from a flower and contains seeds, it’s a fruit. Since lemons start as those intoxicatingly smelly white blossoms and end up full of seeds (unless you get a seedless variety, but we’re talking about growing from scratch here), they are fruits. They are actually a specific type of berry called a hesperidium. Yeah, I know, fancy word for "citrus berry with a tough rind."

Why does this matter to you, the home gardener? Because fruits need energy. Lots of it. Unlike leafy greens that you can grow in partial shade with low effort, fruit-bearing plants are hungry. They need full sun (6-8 hours, minimum) and regular feeding to produce those juicy yellow orbs.

When you grow a lemon from seed, you are signing up for the long haul. It’s not like planting radishes. You are nurturing a tree that wants to flower and fruit. It’s a commitment, but when you see that first yellow lemon dangling from a branch you grew yourself? Total magic.

Personality #2: The Culinary Vegetable (The Kitchen Reality)

Now, let’s talk about how we actually use lemons in the US. This is where the "vegetable" argument comes in. Think about it. When was the last time you sat down on the couch and ate a whole lemon like a peach? Probably never, unless you lost a bet.

In the kitchen, we treat lemons more like vegetables or savory flavor enhancers. We squeeze them over asparagus, we bake them with chicken, we mix the juice into vinaigrettes for our kale salads. They sit in the crisper drawer right next to the carrots and celery.

For the home cook and gardener, thinking of your lemon tree as a "vegetable producer" changes how you value it. You aren't growing it for a sweet snack; you’re growing it for acid. You’re growing it to balance salt and fat in your cooking.

I have a friend who grows her lemons specifically to harvest them when they are green and unripe, just because she likes the sharper, more "vegetal" flavor profile for her salsas. That’s the beauty of growing your own. You don’t have to wait for the grocery store standard. You can harvest your "vegetable" whenever the flavor hits the right note for you.

If growing fresh vegetables and herbs right outside your door sounds exciting, a small kitchen garden can be a great place to start. You can read How to Start a Kitchen Garden at Home for simple ideas on creating an easy, beginner-friendly growing space for everyday cooking ingredients.

Personality #3: The Herbal Powerhouse (The Secret Weapon)

Here is my favorite take, and honestly, the one most beginner gardeners overlook. Your lemon tree is a world-class herbal plant.

Most people toss the lemon seeds in the dirt, wait for the fruit, and ignore everything else. Big mistake. The leaves of the lemon tree are packed with aromatic oils. In fact, if you rub a lemon leaf between your fingers, the scent is often stronger and more complex than the fruit itself.

In many cultures, and increasingly here in the US, citrus leaves are used just like bay leaves. You can toss a fresh lemon leaf into a curry or a soup to infuse a bright, citrusy aroma without the sour acidity of the juice. It’s a game-changer for stews.

And let’s not forget the zest. The peel is basically an herb. It contains all the essential oils. Drying lemon peels to mix into tea blends or spice rubs is a classic herbalist move. It adds fragrance and lift to everything it touches.

If you start thinking of your lemon seedling as an herb, the waiting game for the fruit becomes way less painful. You can start harvesting a few leaves here and there for tea or cooking while the tree is still young (just don’t strip it bare!). It makes the plant useful years before it ever produces a single lemon.

How to Grow Your Own Triple-Threat Plant

So, you’re sold. You want this fruit-veg-herb hybrid in your life. The good news? Starting from seed is cheap, fun, and accessible, even if you’re in a chilly apartment in Chicago.

Here is my "keep it real" guide to getting started:

1. Sourcing the Seed

You can use seeds from a store-bought organic lemon, but just know that it’s a bit of a gamble. Hybrid lemons might not produce a tree that looks or tastes like the parent. If you want reliability, buying quality, viable seeds is the way to go. You want fresh stock that hasn't been dried out for months.

2. The Soil Setup

Lemons hate wet feet. I can’t stress this enough. If you use heavy garden soil, your seed will rot. Use a light, fluffy potting mix. I usually mix in some sand or perlite to make sure the water drains through fast. Think "cactus vibes" but a little richer.

3. The Warm Up

Citrus seeds need warmth to wake up. They think they are in the tropics. If your house is 65 degrees, they’re gonna hit the snooze button. Put the pot on a heat mat or top of the fridge until they sprout.

4. The Long Game

Patience, y'all. It might take a month for the sprout to show up. And it will take years for fruit. But remember the "herbal" aspect? You’ll have gorgeous, scented leaves to enjoy way sooner. It’s a beautiful houseplant that pays rent by smelling good.

While you are nurturing your slow-growing citrus, you probably want some instant gratification in the garden, right? I always tell people to plant some fast-growing greens alongside their trees so they have something to harvest while they wait. Check out our fall planting collection for some quicker wins that look great sitting next to your lemon pots.

Why the Classification Doesn't Matter (But Kind of Does)

At the end of the day, does it matter if we call it a fruit, veggie, or herb? Maybe not to the plant. It’s gonna do what it’s gonna do. But for us?

Seeing the lemon as a fruit reminds us to give it sun and fertilizer.

Seeing it as a vegetable reminds us of its savory place in our kitchen.

Seeing it as an herb reminds us to use the whole plant—leaves, zest, and all.

It opens up your gardening mind. You stop looking at the plant as a machine that only dispenses lemons and start seeing it as a living, aromatic companion in your home.

Pro Tips for US Gardeners

I’ve killed a few trees in my time (RIP), so learn from my mistakes:

• Indoor/Outdoor Shuffle: In most of the US, lemons can’t handle winter. Bring them inside before the first frost. But do it gradually! They hate sudden temperature changes and will drop leaves if you shock them.
• Humidity Helper: Our heaters dry out the air. Your lemon tree wants humidity. Mist it, or put the pot on a tray of pebbles and water.
• Don’t Over-Pot: Don’t put a tiny seedling in a massive 5-gallon bucket. It’s too easy to overwater. Step up the pot size gradually as the roots grow.
• Check for "Suckers": If you have a grafted tree, watch for growth below the graft line. If you are growing from seed, you don't need to worry about this!

Frequently Asked Questions

Can I eat the lemon seeds?

Technically, yes, they aren't toxic in small amounts, but they are bitter and tough. Most folks spit them out. However, they contain pectin, so some people toss them in a cheesecloth bag when making jam to help it set.

Are lemon leaves safe for tea?

Yes! As long as you haven't sprayed your tree with any nasty chemicals. Fresh lemon leaves make a mild, soothing tea. Just steep one or two leaves in hot water. It’s super relaxing.

Is a Meyer lemon a fruit or an herb?

Same rules apply! A Meyer lemon is actually a cross between a lemon and a mandarin orange. It’s sweeter, so it fits the "fruit" category a bit better than a standard Eureka, but the leaves are just as herbal and fragrant.

Why are my seedlings taking so long?

It’s usually temperature. If the soil is cold, the seed sits dormant. Warm it up! Also, light. Once they sprout, they need bright light to grow. A dark corner won't cut it.

Final Thoughts

So, the next time someone asks you if a lemon is a fruit or a veggie, you can give them the long answer. Or, you can just invite them over to see your beautiful tree, smell the crushed leaves, and taste the zest in your pasta.

Growing lemon seeds connects you to a process that is slow, rewarding, and incredibly versatile. It’s one of the few plants that truly does it all. It feeds us, flavors our food, and scents our homes. Who cares what label we put on it?

If you are ready to get your hands dirty but want to fill out your garden with some other seasonal favorites while your tree gets established, don't forget to browse our fall favorites here. Happy planting, and enjoy the zest!