Perennial Herb · zones 4–9 · 21 varieties

Bee Balm

Monarda didyma

Lamiaceae — the same plant family as english lavender, basil, mint, rosemary and 11 more here. Relatives share pests and diseases, which is why rotation plans group by family.

Bee Balm (Monarda didyma) is a perennial herb for USDA zones 4–9. It wants full sun and pH 6–8 soil, with about 1–1.5 in of water weekly. It matures in about 100–130 days from sowing, or 70–90 days from setting out a transplant. Watch for aphids and powdery mildew. Below: its full sourced profile from 4 extension sources, plus a planting calendar timed to your frost dates.

Zones 4–9 — USDA USDA
Sun Full sun
Water Moderate
Matures 70–90 days — from transplantest from transplant
Mature size 2–4 ft
Spacing 12–36 in
Soil pH 6–8
Frost Very hardy
When to plant bee balmtypical · zone 6b
Your zone
…or your ZIP, for your real frost dates

Growing
Establishing
Harvest
Flowering
Dormant

Typical dates for zone 6b — set your zone or ZIP for yours. This calendar assumes the crop is started indoors. Timing is a guide from the crop's sourced growth stages; confirm with your local frost dates and extension before you sow.

Growing bee balmevery fact says where it came from

What we will not put a number on

We do not give a feeding rate for this crop, and that is deliberate rather than a gap. The figures published by extension services are pounds of nitrogen per acre for a production field — they do not convert safely to a raised bed or a pot without knowing your soil test and your fertilizer's analysis, and guessing errs toward burning roots. It is also why every chart you find online disagrees with the next one.

We give watering as a depth per week rather than gallons per plant, because that is how it is actually measured and how the published figures are written. A gallons-per-plant number depends on your spacing, your soil and whether the plant is in a pot — so it would look more precise than it is.

Site & soil

Hardiness zones
4–9
Sun
Full sun
Soil pH
6–8
Soil texture
Clay, High organic matter
Frost tolerance
Very hardy

No published figure for the temperature frost starts to hurt it and the temperature that would kill it. We looked — where a number is missing here it is missing from the research, not skipped. The crop’s frost and heat tolerance above still applies.

The plant

Mature height
2–4 ft
Mature spread
2–3 ft
Growth rate
Moderateest
Spacing in row
12–36 in
Between rows
24–36 inest
Planting depth
0–0.25 inest
Container size
2–5 gal — low end is the minimum, high end is betterest
Support
Self-supportingest
Grown from
Division, Seed, Cutting

Water & feeding

Water needs
Moderate
Water per week
1–1.5 in/wkest
Critical water
Establishment, Vegetativeest
Feeding
Moderate

Timing & fruiting

Days to maturity
100–130 days from seed · 70–90 days from transplantest
Harvest cues
Rapid leaf growth, First flowers

Planted again for autumn

Set plants out by
mid Aug typical · zone 6b

70 days to maturity from setting a plant out — that is what our sources measure for this crop, so this is a date for planting out and not a sowing date, counted back from the first frost above. Not published for anywhere in particular: it is your own frost date and this crop's own figure, which is why it works wherever you are. A days-to-maturity figure is a catalog number for a good season rather than a promise, and a cold month moves it.

Edible parts per source: flower, leaf.

What tends to go wrongmost-cited first
PestsAphidsSpider mites
DiseasesPowdery mildewRust

Compiled from the extensions cited below. Which ones actually show up depends on your region — your extension's local list is the last word.

All 21 varietiesthe ones with their own page are linked
Variety TypeHabit DaysColorWhat it is known for
Balmy Lilac Hybrid Dwarf 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Balmy Purple Hybrid Dwarf 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Balmy Rose Hybrid Dwarf 70–90 Pink Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Blue Stocking Heirloom Spreading 70–90 Blue Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Cambridge Scarlet Heirloom Hybrid Upright 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Claire Grace Monarda Fistulosa Upright 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Colrain Red Upright 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Fireball Spreading 70–90 Red Missouri Botanical Garden describes this assmall enough for a pot
Gardenview Scarlet Heirloom Spreading 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Jacob Cline Monarda Didyma 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Leading Lady Plum Hybrid Dwarf 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Marshall's Delight Hybrid Mounding 70–90 Pink Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
On Parade Hybrid 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Panorama Mix Hybrid 70–90 Bicolor Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Peter's Purple Hybrid Upright 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Petite Delight Hybrid Dwarf 70–90 Bicolor Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Prairie Night Heirloom Spreading 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Purple Rooster Monarda Didyma Upright 70–90 Purple Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Raspberry Wine Spreading 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Sugar Buzz Cherry Pops Hybrid Upright 70–90 Red Iowa State University Extension and Outreach records this asdraws hummingbirds · draws bees and butterflies · deer usually leave it alone · rabbits usually leave it alone · the flowers are edible
Wild Bergamot Monarda Fistulosa Upright 70–90 Purple Prairie Nursery describes this asdraws bees and butterflies
Sources4 cited · 4 organizations
  • Iowa State University Extension and Outreach
  • Missouri Botanical Garden
  • NC State Extension
  • University of Illinois Extension

We compile bare facts from these university-extension and horticultural sources, never copied prose. 12 of the 20 values on this page carry a citation. The rest are marked est; hover one and it says why — either nobody publishes a figure we could point at, or a person set it and attached no source. Figures vary with climate and seed source; confirm with your local extension before you buy.

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