Sweet Gale

Shrub

Sweet Gale

Myrica gale

Also known as: Bog myrtle, Dutch myrtle

Shrub Myricaceae Nitrogen FixerWildlife AttractorBorder Plant
Hardiness Zone
2-6
Ideal Temp
40–70°F
Survives Down To
-40°F
Life Cycle
Perennial

Sweet gale (Myrica gale) is a resinous deciduous shrub of cold bogs and coasts: narrow aromatic leaves, catkins, and a knack for fixing nitrogen with Frankia instead of the rhizobium crowd. Plants range roughly 2–6 feet, suckering into thickets where acidity and moisture align—perfume on the wind, mosquitoes allegedly less amused. subtropical and tropical Americas: This is mostly a “know your limits” entry. Sweet gale wants acidic, cool-root conditions; subtropical subtropical and tropical Americas lowlands cook it unless you are running a specialty bog pot with obsessive pH discipline. If you are in the primary audience zones (8b–13), picture it as a reference species for temperate guild thinking, not a hedge you plant next to the mango. ☀️💧 Sun and Water Requirements: - Full sun to light shade; best fragrance and density in high light if soil stays moist. - Wet acidic soils; tolerates periodic flooding common to true bog plantings—alkaline irrigation is sabotage. ✂️ Propagation: - Semi-hardwood cuttings in summer with humidity; rooting hormone helps the impatient. - Layer low branches to soil in spring; sever rooted stems the following year like civilized bandits. 🌾 Harvest / Best Use Timing: - Harvest aromatic leaves for potpourri or traditional uses when growth is lush; dry gently out of direct sun. - Prune to shape in late winter; avoid heavy cuts during peak sap if you want polite recovery.

Good Neighbors
  • Highbush Blueberry — shared acidic, moist appetite; myrtle nitrogen whispers to hungry ericaceous roots.
  • Leatherleaf — evergreen texture under taller bog canopy; both tolerate peaty wetness.
  • Cranberry — mat-forming acid lover at sweet gale’s ankles without root trench warfare.
Cautions
  • Lime-stabilized urban fill that spikes pH overnight
  • Dry beach dunes with blasting salt and zero peat
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Caterpillars
Lepidoptera Larvae
Scale Insects
Coccoidea