Mint Varieties for Indoor Growing
Mint belongs to the genus Mentha, and there are dozens of named varieties — but not all of them are equally suited to indoor growing or culinary use. Here are the most useful options to consider:
- Spearmint (Mentha spicata): The most common and widely available mint variety. It has a mild, sweet flavor that works beautifully in cooking, cocktails (including mojitos), and herbal tea. Spearmint is the default choice for kitchen growing — vigorous, easy to find, and the most versatile in the kitchen.
- Peppermint (Mentha x piperita): A natural hybrid of spearmint and watermint. It has a stronger menthol content and a sharper flavor, making it ideal for teas, desserts, and anything where a more intense mint flavor is desired. Slightly harder to grow than spearmint in some conditions, but equally vigorous once established.
- Chocolate mint: A peppermint variety with a distinctive faint chocolate aroma in addition to the mint scent. Popular with home growers and widely loved — makes wonderful hot chocolate, desserts, and herbal teas. It performs well indoors and is widely available at nurseries.
- Apple mint (Mentha suaveolens): Softer, rounder leaves with a mild fruity scent. Less intense than spearmint or peppermint, which makes it an excellent choice for gentle herbal teas. The leaves are slightly fuzzy and have a pleasant texture.
- Pineapple mint: A variegated variety with white-and-green leaves and a light tropical fruity scent. Slightly less vigorous than spearmint, which actually makes it easier to manage indoors. Primarily ornamental as well as functional, and very attractive in a pot.
- Pennyroyal (Mentha pulegium): A smaller-leafed mint with strong insect-repellent properties and a sharp, intense menthol scent. Not commonly used in food. Important note: pennyroyal is toxic to cats and dogs — avoid growing it in homes with pets.
Best all-around choice: For most indoor herb gardeners, spearmint is the top recommendation for culinary use. If you want something a bit more unusual, chocolate mint is a crowd-pleaser with distinctive aroma and flavor.
Pot and Soil Setup
Getting the pot and soil right is the foundation of successful indoor mint growing. Mint has specific needs that differ from many other culinary herbs.
Choosing the Right Pot
Use a pot with a minimum diameter of 6 inches. An 8-inch pot is preferred if you want a full, productive plant that you can harvest from regularly. Mint's root system expands quickly — a pot that's too small will result in a root-bound plant that dries out too fast and produces less foliage.
Always choose a pot with drainage holes at the bottom. Mint likes consistent moisture, but it still needs drainage to prevent waterlogging and root rot. A pot without drainage will eventually kill the plant, no matter how carefully you water.
Mint spreads aggressively through underground runners (stolons or rhizomes) — horizontal stems that travel through the soil and produce new shoots wherever they make contact. In a shared pot or window box, mint will completely overtake neighboring plants within weeks. This is why mint should always grow in its own dedicated pot (covered in more detail in the section below).
Best Soil for Mint
Mint prefers a moisture-retentive but still well-draining growing medium. Standard multipurpose potting mix works well straight out of the bag. You can improve it by mixing in a small amount of compost to add nutrients and help with moisture retention.
Avoid very fast-draining mixes designed for cacti and succulents — these dry out too quickly for mint. Equally, avoid heavy garden soil, which compacts in pots and can restrict drainage.
Repotting
Mint fills its pot quickly. You'll know it's time to repot when roots begin circling the bottom of the pot or emerging from the drainage holes. At that point, move up to the next pot size or divide the plant into two or three sections, each repotted separately. Repotting is best done in spring or early summer.
Watering Mint Indoors
Watering correctly is the single most important care task for indoor mint. Unlike rosemary or thyme — which prefer to dry out between waterings — mint likes consistently moist soil.
When to Water
Water when the top inch of soil feels dry to the touch. Don't let mint dry out completely — prolonged drought causes wilting, leaf drop, and reduced flavor. During summer and active growth periods, this may mean watering every 2–3 days. In winter, when growth slows and evaporation is lower, you may only need to water every 4–7 days.
How to Water
Water thoroughly each time — pour water slowly until it drains freely from the bottom of the pot. This ensures the entire root zone is moistened. After 30 minutes, empty the saucer to prevent the roots from sitting in standing water, which can cause root rot over time.
Mint is significantly more tolerant of higher moisture levels than Mediterranean herbs like rosemary or thyme. However, it still suffers in waterlogged, anaerobic soil. Drainage is still essential — the goal is moist, not saturated.
For more on indoor herb watering technique, see our guide on how to water houseplants.
Light Requirements
One of mint's most appealing qualities as an indoor herb is its flexibility with light. It is one of the most shade-tolerant culinary herbs you can grow — though more light generally means more flavorful leaves.
Ideal Light Conditions
Aim for 4–6 hours of indirect or direct light per day. An east-facing or west-facing window works well and is often sufficient for healthy growth. A south-facing window is ideal but not required — mint doesn't need the intense light that basil demands.
In lower light conditions, the plant will still grow, but it tends to become leggy and stretched, and the menthol content — which gives mint its distinctive flavor and aroma — decreases. If you notice your mint producing long, weak stems with small leaves, it's a sign it needs more light.
Grow Lights
If you're growing mint under an artificial grow light, 12–14 hours per day is sufficient. Mint doesn't require the highest-intensity grow lights — a standard full-spectrum LED panel positioned 6–12 inches above the plant will work well.
Tips for Even Growth
Rotate the pot a quarter turn every few days so all sides of the plant receive approximately equal light. Without rotation, the side facing away from the window will become sparse and leggy while the light-facing side grows dense.
For a comprehensive overview of light requirements for indoor herbs, see our guide on herb garden light requirements.
Why Mint Needs Its Own Pot
This point deserves its own section because it's the most common mistake people make with mint — and it's one that can ruin an entire container garden.
How Mint Spreads
Mint spreads through underground runners called stolons or rhizomes. These are horizontal stems that grow just below or at the soil surface, traveling outward in all directions from the parent plant. Wherever a stolon makes contact with soil, it produces roots and new shoots. In open ground, a single mint plant can colonize a large area within a single growing season.
In a container, the stolons quickly fill every inch of available soil. If you've planted mint alongside basil, parsley, or any other herb in a shared pot or window box, the mint will completely overtake the neighboring plants' root space within a matter of weeks — crowding them out and dominating all the available moisture and nutrients.
The Solution: Dedicated Containers
Always grow mint in its own pot. This is not optional — it's a fundamental requirement of growing mint successfully alongside other plants. Use a dedicated 6–8 inch pot for your mint and keep it separate from other herbs.
If you want to display mint alongside other herbs in a larger container or window box for aesthetic reasons, the best approach is to keep the mint in its own smaller pot and then place that pot inside the larger display container. This way the roots are contained and can't escape into the shared soil.
This same principle applies to outdoor growing. Experienced gardeners who want to plant mint in a garden bed will often bury a large container (with the bottom removed or punctured for drainage) in the ground before planting the mint inside it. The buried container walls act as a root barrier and prevent the runners from spreading across the entire bed.
Pruning and Harvesting
Regular pruning is not just about harvesting leaves — it's essential maintenance that keeps the plant bushy, productive, and healthy. A mint plant that's never pruned will become tall, leggy, and woody over time, with fewer and smaller leaves.
How to Prune Correctly
Always cut just above a leaf node — the point on the stem where a pair of leaves emerge. When you cut at a node, the plant responds by branching from that point, sending out two new stems instead of one. This is what creates a full, bushy plant rather than a tall, spindly one.
For harvesting, cut the top 2–3 inches of stems rather than picking individual leaves. This method is more efficient, better for the plant's shape, and produces more new growth. Use clean scissors or garden shears.
The One-Third Rule
Never remove more than one-third of the plant's total foliage at one time. Taking too much at once shocks the plant and significantly slows recovery. If you need a large harvest, spread it over multiple sessions a week apart, or allow the plant to recover for 2–3 weeks between heavy cuttings.
Removing Flower Stalks
When mint begins to flower — producing small clusters of purple, pink, or white flowers at the tips of stems — remove those flower stalks immediately. Once mint bolts (transitions to flowering), the quality and intensity of the leaves declines noticeably. The plant focuses its energy on reproduction rather than leaf production, and the leaves can develop a slightly bitter or reduced flavor. Snip the flower stalk back to the nearest set of leaves as soon as you notice it forming.
Hard Cutting Back
For a major reset or large harvest: cut the entire plant back to 3–4 inches from the soil level. This seems drastic, but mint is highly regenerative and will produce a full flush of fresh new growth within 2–3 weeks during the active growing season. This technique is especially useful when a plant has become leggy or woody.
For more on harvesting herbs indoors, see our guide on harvesting herbs indoors.
Overwintering Mint Indoors
Mint's cold-tolerance sets it apart from most other culinary herbs. Outdoor mint is a hardy perennial — it dies back to the ground in winter and reliably regrows from the roots in spring. Indoor mint is different: kept in adequate warmth and light, it will continue growing year-round without a dormant period.
What to Expect in Winter
As days shorten and indoor light levels drop in autumn and winter, mint's growth rate slows significantly. The plant may produce fewer new leaves, stems may become slightly more stretched, and the overall vigor decreases. This is completely normal and not a sign that something is wrong.
During winter, reduce your watering frequency to match the plant's reduced activity — the soil takes longer to dry out, and overwatering is a more significant risk when growth is slow. Move the plant to your brightest window, or supplement with a grow light to maintain adequate light through the shorter days.
Giving Mint a Rest
If the plant looks stressed, stops producing new growth, or is clearly struggling despite your best efforts through winter, you can allow it to rest. Cut it back to 2–3 inches from the soil, reduce watering to just enough to keep the roots from completely drying out, and give it minimal attention until late winter or early spring when natural light levels begin to increase. Once light improves, resume regular watering and the plant will typically bounce back with vigorous new growth.
Overwintered mint that has had a rest period often comes back stronger in spring than plants that were pushed to grow through the entire winter.
Common Problems
Mint is generally one of the more resilient culinary herbs, but a few issues can arise when growing it indoors. Here's how to identify and address the most common problems:
Leggy, Spindly Growth
Long stems with small, widely-spaced leaves are a classic sign of insufficient light. The plant is stretching toward a distant light source. Move it to a brighter window or add a grow light. Regular pruning will also help by stimulating branching. See our guide on herb garden light requirements for more detail.
Wilting Despite Moist Soil
If your mint is wilting even though the soil is moist, there are two likely causes. First, the plant may be severely root-bound — the pot has become so full of roots that there's almost no soil left to hold moisture, and the plant can't sustain itself. Unpot and check: if you see a dense mat of circling roots with almost no visible soil, repot into a larger container immediately. Second, the roots may be rotting. Root rot causes the same wilting symptoms as drought because rotted roots can no longer transport water. Unpot, trim away any brown, mushy roots, and repot in fresh, well-draining soil.
Mint Rust
Mint rust is a fungal disease caused by Puccinia menthae. It appears as orange, yellow, or rust-brown powdery spots, primarily on the undersides of leaves. Remove all affected leaves immediately and dispose of them (don't compost them). Improve air circulation around the plant, and avoid wetting the foliage when watering. In severe or persistent cases, it's often better to discard the plant entirely and start fresh with a new cutting or plant.
Spider Mites
Spider mites are tiny arachnids that thrive in hot, dry indoor air — particularly during winter when central heating reduces humidity. Signs include tiny pale dots on the upper leaf surface and fine silky webbing on stems and between leaves. Increase humidity around the plant, wash the leaves thoroughly with water (a gentle spray in a sink works well), and apply insecticidal soap if the infestation persists.
Black or Dark Brown Leaves
Blackening of mint leaves usually indicates one of two problems: cold damage from temperatures below 50°F (mint kept near a drafty or very cold window in winter is vulnerable even in a warm room), or advanced rot caused by overwatering. Remove all affected leaves and stems, then address the underlying cause — improve temperature management or reduce watering frequency and ensure adequate drainage.
Aphids
Aphids are small, soft-bodied insects that cluster at growing tips and on new growth, sucking sap from the plant. Check the tips of stems regularly for clusters of small green, black, or white insects. Wash them off with a strong stream of water or apply insecticidal soap.
Growing Mint in Water
As a bonus tip: mint is one of the few herbs that will grow indefinitely in water. Take a 4–6 inch cutting, remove all leaves from the lower half, and place it in a glass of water on a bright windowsill. Change the water every few days to prevent stagnation. The cutting will root within 1–2 weeks and continue growing for months. Water-grown mint is slower and produces smaller leaves than soil-grown plants, but it's a useful technique for a small, continuous supply or as a way to propagate new plants. For a broader overview of herbs suited to indoor growing, see our guide on the best herbs to grow indoors.
More in This Series
- Indoor Herb Garden: Complete Guide
- Best Herbs to Grow Indoors
- How to Grow Basil Indoors
- How to Grow Rosemary Indoors
- How to Grow Parsley Indoors
- How to Grow Thyme Indoors
- Harvesting Herbs Indoors
- Herb Garden Light Requirements
- How to Water Houseplants