plant

Good King Henry

Blitum bonus-henricus

Updated 4 Aug 2026 · AI-parsed entry

Good King Henry (Blitum bonus-henricus) — a plant, for Part sun, Medium water.

What it needs & gives back

↓ Needs

Lightfull sun to partial shade
Watermedium

↑ Gives back

Mulch_biomassmedium

Through the year

Through the year

JFMAMJJASOND
emergenceEmergence of new growth in early spring after the last frost and when soil temperatures rise above 5°C.
floweringFlowering typically occurs in late spring to early summer as days lengthen and temperatures are consistently mild.
fruitingFruiting follows flowering, with seeds maturing over several weeks in mid to late summer.
senescenceFoliage begins to die back with the first autumn frosts and shortening day lengths, preparing for dormancy.
dormancyEnters dormancy in late autumn, persisting through winter as a perennial rootstock.

Soil interactions

Drainagemoist but well-drained
Nitrogen fixingNo
MycorrhizalNo
Accumulatesiron
Soil textureloam, clay
Organic matterMedium
Compaction toleranceMedium

Propagation

Methodsseed, division
Difficulty2 / 5
Establishes in~1 yr
Stratificationcold stratification recommended for 2-4 weeks
Self-seedingModerate
Divisionspring_or_autumn

Wildlife & pests

Can host pestsslugs, snails
Can host diseasesleaf spot