Growing bee balm for tea (Monarda)
*Monarda* is one of the rare plants that straddles the boundary between ornamental perennial and useful culinary herb convincingly. The flowers and leaves of both *M. didyma* (scarlet bee balm) and *M. fistulosa* (wild bergamot) have been used for tea since long before European settlement of North.
—- title: "Growing bee balm for tea (Monarda)" slug: growing-bee-balm-for-tea hub: vegetables category: "Herb guide" description: "How to grow Monarda didyma and M. fistulosa for tea, flavoring, and pollinator support. Includes powdery mildew management, cultivar selection, and harvest timing." date: 2026-06-10 updated: 2026-06-10 author: "Thomas A." reading_time: 9 scientific: "Monarda didyma" zones_min: 3 zones_max: 9 sun: "full sun to partial shade" —-
Monarda is one of the rare plants that straddles the boundary between ornamental perennial and useful culinary herb convincingly. The flowers and leaves of both M. didyma (scarlet bee balm) and M. fistulosa (wild bergamot) have been used for tea since long before European settlement of North America. The Oswego people of New York introduced European colonists to M. didyma as a tea substitute during the colonial boycott of British tea, per historical accounts documented by Cornell Cooperative Extension.
I don't grow bee balm in my Melville garden. The deer pressure on Long Island is significant, and bee balm is reportedly browsed, though I have seen it thriving in fenced gardens nearby. This guide is sourced from Extension publications.
Species and cultivar selection
Per NC State Extension, two species are most commonly grown:
- ***Monarda didyma (scarlet bee balm):* Brilliant red flowers, 2-4 feet tall. Native to moist, rich woods of eastern North America. Prefers moist soil and tolerates partial shade. Flavor is stronger, more oregano-like.
- ***Monarda fistulosa (wild bergamot):* Lavender-pink flowers, 2-4 feet tall. Native to dry, well-drained sites across eastern and central North America. More drought tolerant. More delicate, lavender-like flavor suited to teas.
For culinary tea use, M. fistulosa has a cleaner, more floral flavor that is preferred by many herbal tea growers. M. didyma produces a stronger flavor closer to oregano.
Powdery-mildew-resistant cultivars (per Penn State Extension):
- 'Jacob Cline' (red, M. didyma): Strongly resistant
- 'Raspberry Wine' (red-purple): Resistant
- 'Marshall's Delight' (pink): Resistant
- 'Violet Queen' (violet): Resistant
- 'Claire Grace' (lavender): Resistant M. fistulosa selection
Starting with resistant cultivars is not optional in humid-summer climates like the Mid-Atlantic and Northeast.
USDA hardiness zones
Per NC State Extension, M. didyma is hardy in zones 3-9. M. fistulosa is slightly more adaptable, performing well in zones 3-9 with greater drought tolerance. Per Missouri Botanical Garden, both species are long-lived in appropriate conditions.
Light requirements
Per NC State Extension:
- M. didyma: Full sun to partial shade (tolerates up to 50% shade); native to forest edges
- M. fistulosa: Full sun preferred; tolerates light shade but flowers are reduced
In zones 7-9, afternoon shade reduces heat stress and extends bloom period for both species.
Watering
Per Penn State Extension, M. didyma prefers consistently moist soil — 1.5 inches per week — and is poorly adapted to dry conditions. M. fistulosa is more drought tolerant; 1 inch per week is adequate.
Overhead irrigation that wets foliage in humid climates exacerbates powdery mildew. Drip irrigation or soaker hoses at ground level are strongly preferred, per Penn State.
Soil requirements
Per Missouri Botanical Garden:
- M. didyma: Moist, fertile, humus-rich soil; pH 6.0-7.0
- M. fistulosa: Well-drained, average to dry soil; pH 6.0-7.0; tolerates poor soil
Both species dislike waterlogged or compacted soil. M. fistulosa can succeed where M. didyma would struggle — in sandier, drier conditions.
Fertilizing
Per Penn State Extension, bee balm is not a heavy feeder. Incorporate compost at planting. In subsequent years, top-dress with 1-2 inches of compost in early spring. Supplemental fertilizer is generally unnecessary and can produce overly lush growth that increases mildew susceptibility.
Spreading habit and division
Per NC State Extension, bee balm spreads by underground rhizomes and can colonize a large area over several years. In garden settings, this spreading can be aggressive. Divide clumps every 2-3 years in early spring before growth begins:
- Dig the entire clump
- Divide into sections with 3-5 stems each, retaining roots
- Discard the woody center of old clumps
- Replant divisions 18-24 inches apart
Failure to divide leads to a hollow-centered clump, reduced vigor, and increased disease pressure.
Harvesting for tea
Per Penn State Extension, harvest bee balm leaves and flowers for tea throughout the growing season. For the strongest flavor, harvest just as flower buds begin to open. Cut stems in the morning after dew dries.
Fresh use: 1 tablespoon of fresh leaves per cup, steeped 5-7 minutes in just-off-boiling water.
Drying: Bundle stems loosely and hang in a warm, dark, ventilated space. Dry 1-2 weeks. Separate leaves and flowers from stems once fully dry. Store in airtight glass containers; flavor is best within 6-12 months.
Powdery mildew management
Per Cornell Cooperative Extension, powdery mildew (Erysiphe monardae) is endemic to bee balm and virtually unavoidable on susceptible cultivars in humid-summer climates. Management requires a multi-pronged approach:
- Cultivar selection: Start with resistant cultivars (see above)
- Spacing: Space plants 24-30 inches apart to maximize air circulation
- Watering: Water at the base; avoid wetting foliage
- Division: Divide every 2-3 years to prevent overcrowding
- Removal: Cut down infected foliage in fall; do not compost
Per Cornell, fungicide applications (sulfur or potassium bicarbonate-based) can slow mildew progression but cannot eliminate it once established. Resistant cultivars are the most effective long-term strategy.
Pests
Per NC State Extension:
Aphids: Cluster on new growth. Control with water spray or insecticidal soap.
Spider mites: In hot, dry conditions. Per UC IPM, increase irrigation; treat with insecticidal soap or horticultural oil.
Deer browsing: Reported as variable. Some references list bee balm as deer-resistant due to aromatic foliage; others note that hungry deer browse it readily.
Common problems
| Symptom | Likely cause | Fix |
|---|---|---|
| White powdery coating on leaves | Powdery mildew | Remove affected foliage; improve air circulation; use resistant cultivars |
| Hollow center to clump | Old clump needing division | Dig and divide in early spring |
| Poor flowering | Too much shade or excess nitrogen | Move to full sun; stop fertilizing |
| Spreading beyond desired area | Rhizomatous growth | Install root barrier or divide and remove outer sections |
| Leaves with orange rust spots | Puccinia rust | Remove affected leaves; improve air circulation |
Frequently asked questions
Is bee balm safe to drink as a tea? Per Penn State Extension, Monarda species have a long history of use as an herbal tea and are considered safe for general use in food quantities. The leaves and flowers of M. didyma and M. fistulosa are not associated with toxicity concerns in culinary quantities. As with any herbal preparation, those who are pregnant, nursing, or on medications should consult a physician before regular consumption.
What does bee balm tea taste like? Per Cornell Cooperative Extension, M. didyma tea has an intense, oregano-like flavor with floral notes — sometimes described as tasting like Earl Grey tea, owing to a similar bergamot-adjacent aroma. M. fistulosa has a lighter, more lavender-minty flavor. Neither is identical to bergamot orange (Citrus bergamia), the actual source of Earl Grey flavoring.
How fast does bee balm spread? Per Missouri Botanical Garden, M. didyma spreads by rhizome and can expand a planting by 12-18 inches per year under good conditions. In rich, moist soil, spread can be faster. Plan for this and either contain the planting with an edging barrier or commit to annual division.
When does bee balm bloom? Per NC State Extension, M. didyma blooms from mid-July through August in zones 5-7. M. fistulosa blooms slightly earlier, from June through August. Deadheading extends the bloom period modestly. In zone 7a, expect peak bloom in mid-July.
Recommended gear: Best Insecticidal Soap: How Potassium Salts Kill Soft-Bodied Pests — our buyer's guide covering picks for every budget, ranked by Extension publication consensus and personal use.
Sources
- NC State Extension — Monarda didyma
- Penn State Extension — Herbs and bee balm
- Missouri Botanical Garden — Monarda fistulosa
- Cornell Cooperative Extension — Bee balm and powdery mildew
- UC IPM — Spider mites