Plants That Look Like Mint

Have you ever spotted a plant that looks like mint in your garden or at the nursery? It’s a common surprise for many gardeners. Several plants share mint’s square stems, toothed leaves, and vigorous growth, making them easy to confuse. Knowing the difference is crucial, as not all look-alikes are as useful or as well-behaved as true mint.

This list covers the most common plants often mistaken for mint. We’ll look at their key features so you can identify them with confidence.

1. Lemon Balm (Melissa officinalis)

Lemon balm is a close cousin in the mint family (Lamiaceae). It shares the characteristic square stem and opposite leaf arrangement. The leaves are heart-shaped with a wrinkled texture and scalloped edges.

How to tell it apart: Crush a leaf. True mint smells of menthol, while lemon balm has a strong, sweet lemony scent. Its growth is also slightly less aggressive than some mints.
Uses: Wonderful for teas, garnishes, and in the herb garden.

2. Catnip (Nepeta cataria)

Another mint family member, catnip is perhaps the most famous imposter. Its heart-shaped, gray-green leaves with soft, fuzzy undersides look very similar to some mint varieties.

How to tell it apart: The smell is the giveaway. Crush a leaf and sniff; it has a unique, pungent, almost skunky aroma that cats adore but is nothing like mint. The flowers are white with purple spots.
Uses: Primarily for feline entertainment, but it can also be brewed into a calming tea for humans.

3. Purple Dead Nettle (Lamium purpureum)

This common winter annual weed is a master of disguise. It has square stems, toothed leaves, and even grows in similar conditions. In early spring, it produces small purple flowers.

How to tell it apart: The upper leaves often have a distinctive purple or reddish tint. The leaves are also more triangular and arranged in a tight cluster near the top of the stem. It lacks the strong scent of mint.
Uses: Often considered a weed, but it is edible and can be used in salads or as a wild green.

4. Ground Ivy (Glechoma hederacea)

Also called “Creeping Charlie,” this perennial weed is a nightmare for lawn enthusiasts. It has rounded, kidney-shaped leaves with scalloped edges and spreads aggressively via runners, much like mint.

How to tell it apart: The leaves are rounder and shinier than mint’s typically more pointed leaves. When crushed, they emit a faint, musty smell, not a refreshing minty one. It has small, bluish-purple flowers.
Uses: Generally an invasive weed, though it has some historical medicinal uses.

5. Perilla (Perilla frutescens)

Also known as Shiso, this plant is in the mint family but belongs to a different genus. It’s popular in Asian cuisine. Its leaves can be green or purple, with a serrated edge that closely mimics mint.

How to tell it apart: The scent is completely different—often described as a mix of cumin, licorice, and citrus. The stems are square but can be more hairy than common mint. The leaf texture is often more ruffled.
Uses: A culinary herb used as a wrap, in salads, and as a garnish.

6. Water Mint (Mentha aquatica)

This one is a trick—it is a true mint! It’s included here because its appearance can differ from the classic spearmint or peppermint you might expect. It has hairy stems and leaves and prefers wet habitats.

How to tell it apart: It still smells minty when crushed, confirming its identity. Look for its preference for soggy ground and its fuzzy leaves to distinguish it from other mints.
Uses: Similar to other mints, though its flavor can be more pungent.

Why Correct Identification Matters

Mistaking another plant for mint can lead to a few problems in your garden or kitchen.

Invasiveness: Some look-alikes, like Ground Ivy, are even more invasive than mint and can quickly take over garden beds or lawns.
Edibility & Safety: While most on this list are non-toxic, incorrect identification is risky. You should never consume a plant unless you are 100% certain of its identity. Some toxic plants could, to the untrained eye, appear similar.
Growth Care: Different plants have different needs. What works for mint might not suit Lemon Balm or Perilla, affecting their health.

The Foolproof Mint Identification Test

Follow these simple steps to be absolutely sure you have a true mint plant.

Check the Stem: Roll the stem between your fingers. If it’s distinctly square, it’s a good first sign. Many mint-family plants share this trait.
Observe Leaf Arrangement: Look at how the leaves attach to the stem. They should be in opposite pairs, directly across from each other.
The Crush and Sniff Test: This is the most reliable method. Gently crush a single leaf between your fingers and smell it. True mint (Mentha species) will release a clear, familiar menthol or spearmint aroma. If it smells lemony, musty, or like something else entirely, it’s an imposter.

Managing Mint and Its Look-Alikes

Most plants on this list share mint’s enthusiastic growth. Here’s how to keep them under control.

Container Gardening: The best way to grow mint or any vigorous herb is in a pot. This physically contains the roots and runners.
Root Barriers: If planting in the ground, sink a deep plastic or metal barrier (like a bottomless pot) around the plant to limit spread.
Regular Harvesting: Frequent pruning or picking encourages bushier growth and prevents the plant from flowering and spreading seeds.
For Weedy Look-Alikes: For invaders like Ground Ivy or Dead Nettle, persistent hand-pulling (ensuring you get the roots) or targeted spot treatment with herbicide may be necessary.

FAQ: Plants That Look Like Mint

Q: What plant looks like mint but isn’t?
A: Common ones are Lemon Balm, Catnip, Purple Dead Nettle, Ground Ivy (Creeping Charlie), and Perilla (Shiso).

Q: How can I be sure I have a mint plant?
A: Use the three-step test: 1) Square stem, 2) Opposite leaves, and most importantly, 3) A clear minty scent when a leaf is crushed.

Q: Are any of these mint-look-alike plants dangerous?
A: The plants listed here are generally not highly toxic, but misidentification is the real danger. Always be certain of a plant’s identity before touching or consuming it, as other toxic plants may have a superficial resemblance.

Q: Why does my “mint” not smell minty?
A> You likely have one of the visual mimics, like Lemon Balm (lemony smell) or Catnip (pungent smell). True mints from the Mentha genus always have a minty aroma.

Q: Can I use these similar plants like mint?
A: Some have their own uses! Lemon Balm makes great tea, Perilla is a culinary herb, and Catnip is famous for affecting cats. But they cannot substitute for mint’s unique flavor in recipes.

Spotting a plant that looks like mint is a fun part of learning garden botany. By paying attention to the small details—stem shape, leaf texture, and especially scent—you can quickly become an expert at telling these green doppelgängers apart. This knowledge helps you manage your garden better and ensures you’re using the right herb for your kitchen creations. Remember, when in doubt, just give a leaf a gentle crush and take a sniff; your nose often knows best.