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Bitter Beech Bolete

Caloboletus calopus, Boletaceae

Zones
4–8
Layer
Root
Lifespan
Perennial
Growth
Moderate

Guild Roles

Nitrogen FixerBeneficial Insect Habitat

Growing Conditions

Sun

Full Shade (preferred)Partial Shade (tolerated)

Water

Moderate (established)High (fruiting)

Soil pH

5 – 7

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

American Caesar's MushroomAmanita jacksonii
Nutrient AccumulationBeneficial Insect Habitat
Reddening False TruffleRhizopogon rubescens
Nutrient AccumulationNurse Plant

Antagonistic Plants

Lake's BoleteSuillus lakei

Both bolete species form ectomycorrhizal relationships, competing for conifer root associations

Short-stalked Slippery JackSuillus brevipes

Both ectomycorrhizal boletes competing for pine and other coniferous host associations

Uses

Functions

Mycorrhizal AssociationNutrient CyclingSoil BuildingBeech Tree Health

Common Questions

What zones does Bitter Beech Bolete grow in?

Bitter Beech Bolete grows in USDA hardiness zones 4 through 8.

Is Bitter Beech Bolete a nitrogen fixer?

Yes, Bitter Beech Bolete is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for Bitter Beech Bolete?

Good companions for Bitter Beech Bolete include American Caesar's Mushroom, Reddening False Truffle.

Design guilds with Bitter Beech Bolete and see companion relationships visually.

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