Herbs · Culinary HerbsMentha spicata 'Kentucky Colonel'

Julep Mint

The preferred spearmint variety for making classic Kentucky Derby mint juleps, with large, crinkled, intensely flavored leaves.

Partial Sun (3-6h)High (consistent moisture)30 daysDifficultyBeginner Friendly
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Julep Mint
Sow & harvest reminderstuned to your local frost dates
Julep Mint × Parsley — keep apart
Sunlight
Partial Sun (3-6h)
Water Need
High (consistent moisture)
Frost Tolerance
Hardy (withstands frost)
Days to Maturity
30 days
Plant Spacing
45 cm
18 in
Hardiness Zones
Zone 3–10
USDA
Difficulty
Beginner Friendly
Expected Yield
200 to
On this pageOverview
01 · Overview

Meet Julep Mint

The preferred spearmint variety for making classic Kentucky Derby mint juleps, with large, crinkled, intensely flavored leaves. Kentucky Colonel produces rounder, broader leaves than standard spearmint with a sweeter, less sharp taste. Grow in moist soil with partial shade and harvest generously, as frequent cutting encourages fresh tender growth.

30
days from seed to your first harvest. Time your whole season around it — sow, feed and pick dates all key off this one number.
02 · When to plant

When to plant Julep Mint

Mint julep mint is best propagated vegetatively rather than from seed, as seeds produce variable offspring. Take 10cm stem cuttings in spring or summer, strip lower leaves, and root in water or moist potting mix. Divisions of established clumps in spring or fall are the easiest method. Root cuttings also work—lay 5cm root pieces horizontally in moist compost and cover lightly. New plants establish quickly and can be harvested within 4-6 weeks.

Planting & harvest schedule

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Sow windowMar – May · in your climate
First harvestApr 14 · from sowing to first pick
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03 · Growing guide

How to grow Julep Mint

Mint Julep mint, also known as Kentucky Colonel spearmint, thrives in moist, fertile soil with consistent watering. Plant divisions or runners in spring after the last frost, spacing them 45cm apart in a location with morning sun and afternoon shade. This variety spreads vigorously through underground stolons, so always plant in containers sunk into the ground or use root barriers to prevent garden takeover.

Provide rich, humus-amended soil and maintain even moisture throughout the growing season. Mulch around plants to keep roots cool and retain soil moisture. Feed monthly with a balanced liquid fertilizer during active growth. Cut stems back to ground level in late autumn after frost kills the top growth.

Harvest frequently by cutting stems just above a leaf node to encourage bushy, compact growth. Regular harvesting prevents flowering, which reduces leaf flavor. For the most intense flavor, harvest in the morning after dew has dried but before the heat of the day. This variety produces the large, rounded, intensely flavored leaves prized for authentic mint juleps and mojitos.

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04 · Companions

Julep Mint's best neighbours

Mint julep mint repels aphids, flea beetles, and cabbage moths, making it beneficial near brassicas and tomatoes. The strong scent confuses pests searching for host plants by masking their chemical signals. Plant in containers near susceptible crops rather than directly in beds to prevent mint from overtaking companions. Attracts hoverflies and beneficial wasps that prey on common garden pests.

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05 · Soil & feeding

Feed it well

Grow in rich, moisture-retentive soil amended with plenty of compost or well-rotted manure. Ideal pH is 6.0-7.0. Apply a balanced 10-10-10 fertilizer monthly during the growing season, or feed every two weeks with diluted liquid fish emulsion. Top-dress with compost in early spring as new growth emerges. Avoid excessive nitrogen, which produces lush growth with diminished essential oil content.

Ideal Temperature

10°C – 30°C
5°C15°C25°C35°C

Hardiness Zone Compatibility

12345678910111213
Ideal (zones 3-10)Greenhouse / protection neededNot recommended
06 · Growth stages

From seed to harvest, stage by stage

0–14 days

Cutting/Division

Julep Mint is almost always propagated from cuttings or root divisions rather than seed. Place stem cuttings in water or moist soil, where roots develop within one to two weeks.

14–30 days

Root Establishment

The young plant develops a network of shallow, fibrous roots and stolons. Initial leaf pairs emerge from each node, and the plant begins to anchor itself firmly.

30–60 days

Vegetative Growth

Rapid above-ground growth occurs as stems elongate and produce the large, crinkled leaves characteristic of Kentucky Colonel. Underground runners begin to spread outward.

60–90 days

Active Spreading

The plant enters its most vigorous phase, sending out runners aggressively in all directions. Leaf production is at its peak, and the aromatic oil concentration is highest before flowering.

90–120 days

Flowering

Terminal flower spikes of pale lavender to white blooms appear at stem tips. Flowering reduces leaf oil concentration, and the plant directs energy toward seed production.

120–180 days

Late Season Decline

As temperatures cool, above-ground growth slows and stems may become woody. The root system remains viable underground, storing energy for the following spring.

Care Tip

Change water every two days for water-rooted cuttings to prevent bacterial buildup.

Young Julep Mint seedling emerging from soil
A young mint cutting establishing roots in moist soil
07 · Monthly care

Caring for Julep Mint month by month

What to do each month for your Julep Mint

July

You are here

No specific care tasks for this month.

08 · Harvest

Harvesting Julep Mint

Begin harvesting once stems reach 15-20cm tall, cutting just above a leaf node to promote branching. For mint juleps, select the largest, most aromatic top leaves. Harvest in the morning for peak essential oil content. Cut up to two-thirds of the plant at once; it will regrow quickly. For the best continuous harvest, stagger cutting across different sections of your mint patch every few weeks.

Freshly harvested Julep Mint sprigs
Harvesting stems just above a leaf node encourages bushier regrowth
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Harvest trackercounting from planting
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Started from
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Right now: Cutting/Division0%
PlantedJun 15, 2024
Harvest windowJul 15, 2024Aug 14, 2024
30d
Pick byAug 14, 2024
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Storage & Preservation

Fresh mint julep mint keeps 7-10 days in a glass of water on the counter or refrigerated with stems in damp paper towels in a sealed bag. Freeze leaves in ice cube trays with water for ready-made cocktail additions. Dry leaves in a single layer away from direct light, though dried mint loses much of its fresh character. Mint simple syrup preserves the flavor well for beverages—steep fresh leaves in hot sugar syrup and refrigerate for up to one month.

09 · Pests

What goes wrong — and the fix

Mint Rust

Disease

Small orange-brown pustules on undersides of leaves, yellowing and distorted foliage.

Prevention Ensure good air circulation by thinning dense growth. Avoid overhead watering. Remove and destroy infected stems immediately.
Fix: Cut all stems to ground level and dispose of infected material. New growth typically emerges disease-free. Apply sulfur-based fungicide if rust persists.

Spider Mites

Pest

Fine webbing on leaf undersides, stippled or bronzed foliage, overall plant decline during hot dry weather.

Prevention Maintain adequate moisture and humidity around plants. Spray foliage with water regularly during dry spells.
Fix: Blast mites off with a strong water spray. Apply insecticidal soap or neem oil to affected plants every 5-7 days until controlled.

Mint Flea Beetle

Pest

Small round holes shot through leaves, tiny dark beetles that jump when disturbed.

Prevention Use floating row covers in spring when beetles emerge. Keep garden free of mint debris where beetles overwinter.
Fix: Apply diatomaceous earth around plant bases. Use pyrethrin-based spray for severe infestations. Harvest heavily to remove affected foliage.

Troubleshooting Common Problems

Leggy, sparse growth usually indicates insufficient light—move to a brighter location with at least 4 hours of direct sun. Wilting despite moist soil suggests root rot from waterlogged conditions; improve drainage. Pale or yellowing leaves may indicate nutrient deficiency; feed with balanced fertilizer. Plants that flower heavily lose leaf flavor—pinch flower buds promptly. Aggressive spreading is the most common complaint; always use root barriers or containers.

Growing Tips

  1. Plant in containers or use buried barriers at least 30 cm deep to prevent underground runners from invading other garden areas.
  2. Provide morning sun with afternoon shade in hot climates to maintain the best leaf quality and oil concentration.
  3. Water deeply and consistently, keeping soil evenly moist but never waterlogged, as mint is susceptible to root rot in standing water.
  4. Harvest by cutting entire stems rather than picking individual leaves, which encourages vigorous regrowth from the base.
  5. Pinch off flower buds as soon as they appear to redirect the plant's energy into producing more aromatic foliage.
  6. Divide established clumps every two to three years in early spring to prevent the center from becoming woody and unproductive.
  7. Apply a thin layer of compost as a top dressing in mid-spring and again after a major harvest to replenish nutrients.
  8. Grow near cabbage, tomatoes, or peppers to help repel aphids and flea beetles with mint's strong aromatic oils.
  9. Root stem cuttings in a glass of water on a windowsill for an easy and reliable method of propagation at any time during the growing season.
  10. Monitor for mint rust, which appears as small orange pustules on the underside of leaves, and remove affected stems immediately to prevent spread.
10 · Varieties

Pick your Julep Mint

Kentucky Colonel

The classic mint julep spearmint with large, crinkled, intensely sweet leaves. The standard for Southern cocktails.

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Mojito Mint

Very similar to Kentucky Colonel with slightly more pointed leaves. Popular in Cuban-style cocktails and Caribbean cooking.

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Julep Spearmint

A selected strain with especially large leaves and vigorous growth, bred specifically for beverage use.

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Why Grow Your Own?

A single Julep Mint plant purchased for two to four dollars will produce enough fresh mint for an entire household throughout the growing season and beyond. Grocery store mint typically costs three to five dollars for a small bundle that wilts within days. A home-grown plant yields continuous harvests from late spring through fall, easily replacing twenty or more store-bought bundles per year and saving sixty to one hundred dollars annually. Surplus can be dried or frozen at no additional cost, eliminating off-season purchases as well.

11 · Recipes

Quick recipes

Classic Mint Julep

Classic Mint Julep

5 minutes

The quintessential bourbon cocktail that showcases Kentucky Colonel mint at its finest. Muddled fresh leaves release their oils into a sweet bourbon base, served over crushed ice in a frosted silver or pewter cup.

5 ingredients
Mint and Cucumber Yogurt Dip

Mint and Cucumber Yogurt Dip

10 minutes

A refreshing dip inspired by Indian raita and Greek tzatziki. The cool crunch of cucumber pairs naturally with the bright flavor of freshly chopped Julep Mint, making a versatile accompaniment for grilled meats and flatbreads.

6 ingredients
Fresh Mint and Watermelon Salad

Fresh Mint and Watermelon Salad

10 minutes

A simple summer salad that highlights the cooling properties of mint against sweet watermelon and salty feta cheese. A drizzle of lime juice ties the flavors together for a light side dish or snack.

6 ingredients

Culinary Uses

The premier mint for classic mint juleps, with leaves sweet enough for muddling without bitterness. Excellent in mojitos, mint tea, tabbouleh, lamb dishes, and fresh spring rolls. The large leaves work well as wraps for fresh cheese appetizers. Chop finely for tzatziki, raita, and Vietnamese pho garnish. Makes outstanding mint-infused chocolate desserts.

12 · Nutrition

What's inside

Per 100g serving
44
Calories
Vitamin C13.3
Vitamin A4248
Potassium458
Fiber6.8

Health Benefits

  • Relieves digestive discomfort including bloating, gas, and indigestion by relaxing smooth muscle tissue in the gastrointestinal tract
  • Contains rosmarinic acid, which has demonstrated anti-inflammatory and antioxidant effects in clinical studies
  • May help alleviate symptoms of seasonal allergies by inhibiting histamine release from mast cells
  • Supports oral health by reducing bacteria associated with bad breath and gum disease when used in rinses or chewed fresh
  • The aroma of spearmint has been shown in research to improve focus, memory, and alertness during cognitive tasks
  • Provides a natural source of iron, manganese, and folate that contribute to healthy red blood cell formation and energy metabolism
13 · History

Where Julep Mint comes from

Julep Mint, formally known as Mentha spicata 'Kentucky Colonel,' is a cultivar of spearmint that was selected and refined in the American South, where it became inseparable from the culture of bourbon and horse racing. Spearmint itself is native to Europe and parts of western Asia, where it has been cultivated for thousands of years. Ancient Greeks and Romans valued it as a culinary herb, a medicinal plant, and a symbol of hospitality. Sprigs were strewn on floors to freshen rooms, and mint tea was prescribed for digestive complaints. When European settlers brought spearmint to North America in the seventeenth century, the herb naturalized readily in the temperate climate of the eastern states. Over generations, Southern gardeners selected strains with especially large, fragrant leaves suited to the mint julep, a cocktail whose earliest written recipe appeared in a Virginia publication in 1803. The Kentucky Colonel cultivar emerged from this tradition, prized for its broad, deeply veined leaves that release an intense, sweet spearmint aroma without the sharpness of peppermint. By the early twentieth century, the mint julep had become the signature drink of Churchill Downs, and Kentucky Colonel mint was the variety of choice for bartenders and home gardeners alike. Today this cultivar is grown around the world, not only for cocktails but for teas, desserts, salads, and Middle Eastern cuisine. Its vigorous, spreading habit makes it one of the easiest herbs to cultivate, though its enthusiasm for colonizing garden space means it is best grown in containers or with physical root barriers. Kentucky Colonel remains a living piece of culinary history, connecting the herb gardens of the ancient Mediterranean to the verandas of the American South.

14 · Did you know?

Julep Mint: did you know?

Fascinating facts about Julep Mint

Kentucky Colonel spearmint was selected in the American South specifically for its superior flavor in mint juleps, the official drink of the Kentucky Derby since 1938.

15 · FAQ

Julep Mint questions, answered

When should I plant Julep Mint?
Plant Julep Mint in March, April, May. It takes approximately 30 days to reach maturity, with harvest typically in May, June, July, August, September, October.
What are good companion plants for Julep Mint?
Julep Mint grows well alongside Tomato, Cabbage, Peas. Companion planting can improve growth, flavor, and natural pest control.
What hardiness zones can Julep Mint grow in?
Julep Mint thrives in USDA hardiness zones 3 through 10. With greenhouse protection, it may be grown in zones 1 through 11.
How much sun does Julep Mint need?
Julep Mint requires Partial Sun (3-6h). This means 3-6 hours of sunlight, ideally morning sun with afternoon shade.
How far apart should I space Julep Mint?
Space Julep Mint plants 45cm (18 inches) apart for optimal growth and air circulation.
What pests and diseases affect Julep Mint?
Common issues include Mint Rust, Spider Mites, Mint Flea Beetle. Prevention through good garden practices like crop rotation, proper spacing, and companion planting is the best approach. See the detailed pests and diseases section above for symptoms, prevention, and treatment for each.
How do I store Julep Mint after harvest?
Fresh mint julep mint keeps 7-10 days in a glass of water on the counter or refrigerated with stems in damp paper towels in a sealed bag. Freeze leaves in ice cube trays with water for ready-made cocktail additions. Dry leaves in a single layer away from direct light, though dried mint loses much of...
What are the best Julep Mint varieties to grow?
Popular varieties include Kentucky Colonel, Mojito Mint, Julep Spearmint. Each has unique characteristics suited to different growing conditions and culinary preferences. See the varieties section above for detailed descriptions.
What soil does Julep Mint need?
Grow in rich, moisture-retentive soil amended with plenty of compost or well-rotted manure. Ideal pH is 6.0-7.0. Apply a balanced 10-10-10 fertilizer monthly during the growing season, or feed every two weeks with diluted liquid fish emulsion. Top-dress with compost in early spring as new growth eme...
How do I keep Julep Mint from taking over my garden?
The most reliable method is to grow mint in containers or in bottomless pots sunk into the ground. If planting directly in a bed, install a root barrier made of metal or thick plastic at least 30 cm deep around the planting area. Regular edging and pulling of escaped runners also helps keep it contained.
What is the difference between Kentucky Colonel mint and regular spearmint?
Kentucky Colonel is a named cultivar of spearmint (Mentha spicata) selected for its exceptionally large, crinkled leaves and sweeter, more intense flavor. Common spearmint has smaller, smoother leaves and a slightly less robust aroma. Kentucky Colonel is the preferred variety for mint juleps and culinary use where bold mint flavor is desired.
Can I grow Julep Mint indoors year round?
Yes, mint grows well indoors in a sunny window that receives at least four to six hours of direct light per day. Use a pot with good drainage, keep the soil moist, and mist the leaves regularly to maintain humidity. A grow light supplement helps during short winter days. Indoor plants produce less prolifically than outdoor ones but will supply fresh sprigs throughout the year.
When is the best time to harvest Julep Mint for maximum flavor?
Harvest in the morning after the dew has dried but before the heat of the day, when essential oil concentration is highest. The best flavor comes from stems harvested just before the plant begins to flower. Cut stems back to just above a set of leaves, and the plant will regrow quickly for repeated harvests.
Why are my mint leaves turning yellow?
Yellow leaves on mint most commonly indicate overwatering or poor drainage leading to root stress. Other causes include nutrient deficiency, particularly nitrogen or iron, spider mite infestations on indoor plants, or mint rust disease. Check the soil moisture level, inspect the undersides of leaves for pests or orange rust pustules, and ensure the plant receives adequate but not excessive water.
Is Julep Mint safe for pets?
Spearmint, including the Kentucky Colonel cultivar, is generally considered non-toxic to dogs and cats by the ASPCA. However, concentrated mint essential oils can be irritating or harmful to pets if ingested in large quantities. Fresh leaves nibbled occasionally pose no significant risk, but avoid applying undiluted mint oil near animals.
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