Hypericum Species, Sweet Amber, Tutsan, St. John's Wort, St. Johnswort

Hypericumandrosaemum

Family
Hypericaceae (hy-PER-ee-KAY-see-ee)
Genus
Hypericum (hy-PER-ee-kum)
Species
androsaemum (an-dro-SEE-mum)
Synonym
Androsaemum officinale
Androsaemum vulgare
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
24-36 in. (60-90 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 2a: to -45.5 °C (-50 °F)
USDA Zone 2b: to -42.7 °C (-45 °F)
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From softwood cuttings
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Atlanta, Georgia

Seattle, Washington(2 reports)

Shelton, Washington

Skokomish, Washington

Woodinville, Washington

Featured Videos

Gardener's Notes:

1
positive
1
neutral
1
negative
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A
A
Olympia, WA | August 2012 | positive

Unsure of exact cultivar. ID'd from Google Images. Mine has bright chartreuse leaves, red berries turning to black in late August in W. ...Read More

K
(Zone 10a) | February 2005 | negative

This is an attractive looking plant both in flower and fruit, but it can become a problem weed. Here in south-eastern Australia, it has e...Read More

L
L
(Zone 8a) | May 2002 | neutral

In the centre of each yellow flower of this shrub is a prominent tuft of long stamens. The berries turn to red, then purplish black. Corr...Read More

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