Pyrenean Hogweed

Heracleum pyrenaicum, Apiaceae

Zones

5–8

Layer

Herbaceous

Lifespan

Perennial

Growth

Fast

Guild Roles

Dynamic AccumulatorPollinator AttractorBeneficial Insect Habitat

Growing Conditions

Sun

Partial Shade (preferred)Full Sun (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

6.5 – 7.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Long-bracted Wild IndigoBaptisia bracteata

Nitrogen Fixation

Alpine AdenostylesAdenostyles alliariae

Pollinator SharingBeneficial Insect Habitat

Arrow-jointed BroomGenista sagittalis

Nitrogen Fixation

Antagonistic Plants

Villous ThapsiaThapsia villosa

Large Apiaceae species compete intensely for resources and produce allelopathic coumarins that can inhibit related umbellifers

Lesser Water-parsnipBerula erecta

Heracleum species produce allelopathic compounds that can inhibit growth of other Apiaceae family members like Berula erecta

Mountain CowslipPrimula auricula

Large hogweed may overshadow and compete with small alpine primula for light resources

Uses

Functions

Mineral AccumulationPollinator FoodTraditional Food PlantHabitat Creation

Edible Parts

Young LeavesLeaf StalksRoots

Medicinal Uses

Digestive TonicAnti-InflammatoryWound Healing

Common Questions

What zones does Pyrenean Hogweed grow in?

Pyrenean Hogweed grows in USDA hardiness zones 5 through 8.

What are good companion plants for Pyrenean Hogweed?

Good companions for Pyrenean Hogweed include Long-bracted Wild Indigo, Alpine Adenostyles, Arrow-jointed Broom.

Design guilds with Pyrenean Hogweed and see companion relationships visually.

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