Lemon balm
Melissa officinalis
A bushy, lemon-scented herbaceous perennial of the mint family, grown for its wrinkled, ovate medium-green leaves that crush to a bright citrus fragrance. Tiny two-lipped white-to-pale-yellow flowers appear in the leaf axils through summer and draw bees. Native to southern Europe, it has escaped gardens and naturalized across much of the U.S.; frequent pruning keeps it leafy, curbs self-seeding, and produces the most fragrant new growth.
Climate fit: moderate (50/100)
Edible
Pollinator
Filler
Light
Full sun / Part sun / Part shade
Water
Low water
Mature size
18-24" tall · 18" apart
Hardy in zones
3a-7b
brutally cold to cold winters
AHS heat range
1-9
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
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The tiny two-lipped white-to-pale-yellow flowers borne in the leaf axils through summer are insect-pollinated and are visited by bees (the genus name Melissa is Greek for "honey bee").
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 38 ecoregions - 28 climate-resilient through 2070 · 7 suited today · 3 newly possible by 2070. Best matches first.
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Lemon balm educator packet
A bushy, lemon-scented herbaceous perennial of the mint family, grown for its wrinkled, ovate medium-green leaves that crush to a bright citrus fragrance. Tiny two-lipped white-to-pale-yellow flowers appear in the leaf axils through summer and draw bees. Native to southern Europe, it has escaped gardens and naturalized across much of the U.S.; frequent pruning keeps it leafy, curbs self-seeding, and produces the most fragrant new growth.
Scientific name
Melissa officinalis
Plant type
herb
Hardiness
3a-7b
Light
full-sun, part-sun, part-shade
Moisture
low
Spacing
18 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Lemon balm (Melissa officinalis). Retrieved 2026, August 20, from https://plotwright.com/plants/melissa-officinalis
Sources used for this record
This record is compiled from the sources below.





