Lemon Balm
Lemon Balm is a heirloom herb variety (Melissa officinalis). Harvest begins around day 70; seed germinates in 10-14 days. Set plants 18-24 inches apart. Grow in soil pH 6.0-7.5, zones 3-7, full sun to partial shade (4-6+ hours). Plants reach 2-3 feet. It will crop in a container.
Sowing
Direct sow in spring after last frost or start indoors 6-8 weeks early. Can also propagate by division or cuttings.
Cultivation
- Sun
- Full sun to partial shade (4-6+ hours)
- Water
- 1-2 inches per week, prefers consistent moisture
- Soil
- Adaptable to most soils, prefers rich, moist, well-drained soil
- Soil pH
- 6.0-7.5
- Spacing
- 18-24 inches
- Height
- 2-3 feet
- Season
- Perennial
Appearance & flavour
- Colour
- Bright to medium green
- Size
- 2-3 inch heart-shaped leaves
- Shape
- Heart-shaped leaves with serrated edges and prominent veining
- Flavour
- Strong lemon scent and flavor with minty undertones, refreshing and citrusy
In the kitchen
Herbal tea, fruit salads, desserts, fish dishes, aromatherapy, potpourri, insect repellent
Pests, disease & resistance
- Pests
- Aphids, spider mites, generally pest resistant due to strong scent
- Diseases
- Powdery mildew, root rot in waterlogged soil
- Resistance
- Generally disease resistant, can suffer from powdery mildew in humid conditions
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 3 | April – May | June – July | — | July – October |
| 4 | March – April | June – July | — | July – October |
| 5 | March – April | May – June | — | June – October |
| 6 | March – April | May – June | — | June – November |
| 7 | February – March | April – June | — | June – November |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
Nutrition (per 100 g)
- Calories (per 100 g)
- 22
- Protein (g)
- 0.35
- Fat (g)
- 0.24
- Carbohydrate (g)
- 6.9
- Fibre (g)
- 0.3
- Sugars (g)
- 2.52
- Vitamin A (µg)
- 0
- Vitamin C (mg)
- 38.7
- Vitamin E (mg)
- 0.15
- Vitamin K (µg)
- 0
- Vitamin B6 (mg)
- 0.046
- Folate (µg)
- 20
- Calcium (mg)
- 6
- Iron (mg)
- 0.08
- Magnesium (mg)
- 6
- Phosphorus (mg)
- 8
- Potassium (mg)
- 103
- Zinc (mg)
- 0.05
- Selenium (µg)
- 0.1
Where to buy seed and equipment
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Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Lemon Balm?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other herbs with a comparable time to harvest, so a season that suits Lemon Balm suits these too.
- Common Mint 70 days
- Pineapple Sage 70 days
- Petroselinum crispum 'Forest Green' 70 days
- Flat-Leaf Parsley 70 days
- Genovese Basil 68 days
- Italian Large Leaf Oregano 74 days