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Wild bergamot

Monarda fistulosa · Lamiaceae

Wild bergamot (Monarda fistulosa) in flower
Photo: Eric Hunt, via Wikimedia Commons (CC BY-SA 4.0)

Shaggy lavender-pink flower heads over aromatic, grey-green leaves in midsummer. The native bee balm of dry fields and prairies.

Size
3½ ft tall, 2½ ft wide
Zones
3 to 9
Light
Full sun to part sun
Flowers
Early July to late August
Pets
No toxicity recorded
Job in a bed
Drift

A bed built around wild bergamot

The planner designed this bed around wild bergamot when this page was made: a 12 × 6 ft (3.7 × 1.8 m) naturalistic planting in zone 6, full sun. It chose the other plants from the 715 that suit those conditions and its dry soil, and says below why wild bergamot stands where it does.

A 12 × 6 ft (3.7 × 1.8 m) bed at eye level in early August: Wild bergamot, Blue moor grass, Sedum 'Lidakense', Italian bugloss 'Dropmore', Dwarf English boxwood, Coneflower 'Green Jewel', Schubert's allium.
A 12 × 6 ft (3.7 × 1.8 m) naturalistic planting in zone 6, full sun, seen from the path in early August.
4. Italian bugloss 'Dropmore'44. Italian bugloss 'Dropmore'44. Italian bugloss 'Dropmore'44. Italian bugloss 'Dropmore'44. Italian bugloss 'Dropmore'41. Wild bergamot11. Wild bergamot11. Wild bergamot15. Dwarf English boxwood53. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'32. Blue moor grass22. Blue moor grass22. Blue moor grass23. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'32. Blue moor grass22. Blue moor grass22. Blue moor grass22. Blue moor grass26. Coneflower 'Green Jewel'66. Coneflower 'Green Jewel'66. Coneflower 'Green Jewel'67. Schubert's allium77. Schubert's allium73. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'33. Sedum 'Lidakense'3
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Blue moor grass × 7, purple
  2. 3 Sedum 'Lidakense' × 22, pink
  3. 4 Italian bugloss 'Dropmore' × 5, blue
  4. 5 Dwarf English boxwood × 1, dark green leaves
  5. 6 Coneflower 'Green Jewel' × 3, green
  6. 7 Schubert's allium × 2, pink

Why this plant

  • The only lavender.

Why here

  • Anchors a back corner. At 3½ ft it is among the tallest plants here, and the tallest close the ends of the bed, where they stand in front of nothing.
  • A step in the back row. Next to coneflower 'Green Jewel' (24 in): no two neighbours there are the same height, so the back steps up and down like a skyline.
  • 3 plants in one group. Massed, one kind reads as a single shape. Scattered, it would look spotty.

Why now

  • In flower for 8 weeks. From early July to late August.
  • Part of the bed's peak. With Italian bugloss 'Dropmore' and coneflower 'Green Jewel' in early July: 3 kinds at once. No week has more.

Planned as a naturalistic planting: low grasses and groundcovers, the matrix, make up 42% of the planted ground. The bed is balanced: the left half carries 47% of the visual weight and the right half 53%. Low plants run along 100% of the front edge: sedum 'Lidakense' and blue moor grass.

The planner's own design check: 10 Excellent, 7 Good. It flags one thing to watch: Nothing on this plan is highly poisonous or an aggressive spreader.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where wild bergamot goes in a border

At 3½ ft it belongs at the back of a bed. In the planner's ten height classes it is moderately tall (3 to 4 ft).

Its job: drift. Planted in a small group of three or five, and repeated further along in the other number.

More drought-tolerant than red bee balm, and a softer colour that blends anywhere. It gets mildew late in the season, so plant it behind something that hides its lower leaves.

  • Meadows and prairie planting
  • Pollinator gardens
  • Dry, sunny borders

What to plant with wild bergamot

Plants recorded as good partners for it, and what each pairing does:

  • Purple coneflower: in flower together for eight weeks, from early July.
  • Little bluestem: its blue-green leaves are a setting for the flowers, before and after; happy in the same dry soil.
  • Black-eyed Susan: in flower together for seven weeks, from mid July; low enough (24 in) to stand in front of it.

Questions about wild bergamot

Does wild bergamot need sun or shade?

Wild bergamot grows in full sun (6 or more hours of direct sun a day) and part sun (4 to 6 hours of sun, including some afternoon sun).

It wants dry, sharply drained soil, of average fertility, and little watering once settled. Once settled in, it stands drought.

What zones does wild bergamot grow in?

USDA zones 3 to 9. It is hardy to zone 3, which means it survives winter nights down to about −30 °F (−34 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does wild bergamot flower in my zone?

In zone 5 it flowers early July to late August. As a summer flower it moves about half a week for every zone: earlier where it is warmer.

Roughly when wild bergamot is in flower
Zone 3Mid July to late August
Zone 4Mid July to late August
Zone 5Early July to late August
Zone 6Early July to late August
Zone 7Late June to mid August
Zone 8Late June to mid August
Zone 9Late June to early August

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should wild bergamot be planted?

24 in (60 cm) apart, from the middle of one plant to the middle of the next. That is a little closer than its full width of 2½ ft (75 cm), so a group knits into one patch.

It grows 3½ ft (100 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many wild bergamot plants do I need?

At 24 in apart, set out in staggered rows:

  • 3 to fill 10 square feet (about 1 m²)
  • 6 for a single row 10 ft (3 m) long
  • 10 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as a group of three or five, with a second group further along in the other number.

In the bed above, the planner used three in one group.

Is wild bergamot poisonous to dogs and cats?

No toxicity is recorded for dogs, cats, horses or people, according to NC State Extension.

"Not toxic" is not "edible": a pet that eats a lot of any plant can be sick.

Do deer eat wild bergamot?

Mostly not. NC State lists it as resistant to deer and rabbits. No plant is proof against a hungry deer in a hard winter, but this one is low on the menu.

Will wild bergamot spread?

It spreads sideways, by runners or roots; the risk of it taking over is moderate. Spreads by underground runners and can crowd its neighbours. Dig out the edges or divide every 2 to 3 years.

What flowers after wild bergamot?

Wild bergamot is over by late August. These start as it finishes and carry the same spot on, so it never goes flat:

  • Garden chrysanthemum: from mid September to late October, 24 in tall, to stand in front of it and cover its fading stems.
  • Japanese anemone: from mid August to early October, 3 ft tall.
  • Sedum 'Autumn Joy': from mid August to mid October, 24 in tall, to stand in front of it and cover its fading stems.

What does wild bergamot look like in winter?

Wild bergamot dies down to the ground and there is nothing to see until spring. The old stems can be cut in autumn, or left until spring as shelter for overwintering insects.

Is wild bergamot good for bees and butterflies?

Wild bergamot is visited by pollinators, specialist bees, butterflies, moths and hummingbirds.

It is native to the United States and Canada.

More Monarda

In these guides

Zone guides: Zone 3 · Zone 4 · Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: July · August

Every fact on record

Type
Perennial
Size
3½ ft (100 cm) tall, 2½ ft (75 cm) wide
Plant
24 in (60 cm) apart
Height class
Moderately tall (3 to 4 ft)
Place in the bed
Back
Flowers
Early July to late August; globes; lavender
Leaves
Medium texture, herbaceous; green
Shape
Upright, spreading
Hardy in
USDA zones 3 to 9
Light
Full sun, part sun
Soil
Average, dry and sharply drained
Water
Low
Feeding
None needed
Family
Lamiaceae
Comes from
Canada to North East Mexico
Attracts
Pollinators, specialist bees, butterflies, moths, hummingbirds
Stands up to
Deer, rabbits, drought, black walnut

Checked against NC State Extension and VASCAN (plants of Canada). Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.