Pollinator plant

Bushy St. John's Wort

Hypericum densiflorum

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Common names

10 names · 6 languages
EnglishYour language
  • Bushy St John's-wort[4]
  • Bushy St. John's Wort[1][2][3]
  • Bushy St. Johnswort
+1 more nameShow fewer names
  • Dense St. John's Wort[1]
Other languages (5)
Dutch
  • Sint-janskruid
  • Struikhertshooi
Finnish
  • virginianpensaskuisma[3]
Russian
  • Зверобой густоцветковый[3]
Slovak
  • ľubovník hustokvetý[3]
Swedish
  • rosmarinhyperikum[3]
Sources & name notes (4)

Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.

Catalogue language labels are reviewed separately from botanical source records.

Numbered references identify names recorded by an external source. Other names are from our plant catalogue.

[1] Hypericum densiflorum — Plant Toolbox common names ↗

NC State Extension Gardener Plant Toolbox; English common names in a United States horticultural reference.

Source records
  • Bushy St. John's Wort — ul#common_names > li:nth-of-type(1); heading: Common Name(s):; Hypericum densiflorum.
  • Dense St. John's Wort — ul#common_names > li:nth-of-type(2); heading: Common Name(s):; Hypericum densiflorum.
[2] Hypericum densiflorum — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy. This is a common-name attestation, not an independent botanical determination.

Source records
  • bushy St. John's Wort — results[0].names[1]; taxon id 635327; Hypericum densiflorum.
[3] Hypericum densiflorum — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy; common-name attestation, not an independent botanical determination.

Source records
  • bushy St. John's Wort — results[29].names[1]; taxon id 635327; Hypericum densiflorum.
  • rosmarinhyperikum — results[29].names[2]; taxon id 635327; Hypericum densiflorum.
  • Зверобой густоцветковый — results[29].names[3]; taxon id 635327; Hypericum densiflorum.
  • virginianpensaskuisma — results[29].names[4]; taxon id 635327; Hypericum densiflorum.
  • ľubovník hustokvetý — results[29].names[5]; taxon id 635327; Hypericum densiflorum.
[4] Catalogue of Life 2026-08-20 — Hypericum densiflorum ↗

Common names from World Plants, version 26.05, reproduced in Catalogue of Life 2026-08-20. License: CC BY.

Source records
  • Bushy St John's-wort — VernacularName.tsv, line 161236; taxon 3NPHQ.
Plant references

Source-backed information

Published observations for this plant. Each reference supports the information beside it.

Taxonomy
Hypericum densiflorum is an accepted species in Catalogue of Life.

Taxonomic treatment in the August 2026 release; the catalogue record name is preserved.

Sources [1]
Botanical family
Hypericaceae

Family in the cited taxonomic treatment.

Sources [1]
Mature height
0.61–2.13 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Mature spread
0.91–1.83 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Plant habit
Dense; Erect; Rounded

NC State Extension profile.

Sources [2]
Life cycle
Perennial

NC State Extension profile.

Sources [2]
Growth rate
Medium

NC State Extension profile.

Sources [2]
Foliage
Deciduous

NC State Extension profile.

Sources [2]
Light
Full sun (6 or more hours of direct sunlight a day); Partial Shade (Direct sunlight only part of the day, 2-6 hours)

NC State Extension profile.

Sources [2]
Moisture and drainage
Good Drainage; Moist; Occasionally Dry

NC State Extension profile.

Sources [2]
Soil texture
Clay; Loam (Silt); Sand; Shallow Rocky

NC State Extension profile.

Sources [2]
Soil pH
Acid (<6.0)

NC State Extension profile. These source categories do not certify the catalogue’s numeric pH interval.

Sources [2]
Flowering season
Summer

NC State Extension profile. Seasons reflect the source region and do not verify the catalogue’s exact flowering months.

Sources [2]
Reported wildlife attraction
Listed as attracting: bees.

NC State Extension profile. Broad wildlife categories; this does not establish flower visits by a named bee species or quantify nectar and pollen.

Sources [2]
Native range
E. U.S.A.

Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.

Sources [3]
Catalogue ratings

Who this plant supports

Honey bees

Medium suitability
Nectar value Unknown
Pollen value Medium
Plant profile

About this plant

Bushy St. Johnswort (Hypericum densiflorum) is a herbaceous plant. It flowers from June to September.

Sources and references

References for the information marked with source numbers on this page.

Sources checked
  1. Catalogue of Life Hypericum densiflorum — Catalogue of Life COL26.8

    COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.

    Supports: TaxonomyBotanical family
    Relevant sections
    • Taxonomy: NameUsage.tsv line 414489; ID 3NPHQ; rank species; status accepted
    • Botanical family: NameUsage.tsv line 414489; ID 3NPHQ; rank species; status accepted

    Source checked on .

    Source data licence: CC BY 4.0.

  2. NC State Extension Hypericum densiflorum — Plant Toolbox

    NC State Extension Gardener Plant Toolbox. Growing conditions and seasons reflect its United States horticultural context.

    Supports: Mature heightMature spreadPlant habitLife cycleGrowth rateFoliageLightMoisture and drainageSoil textureSoil pHFlowering seasonReported wildlife attraction
    Relevant sections
    • Mature height: Dimensions / Height
    • Mature spread: Dimensions / Width
    • Plant habit: Habit/Form
    • Life cycle: Life Cycle
    • Growth rate: Growth Rate
    • Foliage: Woody Plant Leaf Characteristics
    • Light: Light
    • Moisture and drainage: Soil Drainage
    • Soil texture: Soil Texture
    • Soil pH: Soil pH
    • Flowering season: Flower Bloom Time
    • Reported wildlife attraction: Attracts

    Source checked on .

  3. Royal Botanic Gardens, Kew Hypericum densiflorum — Kew WCVP native distribution

    Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.

    Supports: Native range
    Relevant sections
    • Native range: WCVP v16; wcvp_names.csv lines 1299202; wcvp_distribution.csv native locality lines 709253, 709254, 709255, 709256, 709257, 709258, 709259, 709260, 709261, 709262, 709263, 709264, 709265, 709266, 709267, 709268

    Source checked on .

    Source data licence: CC BY 3.0.