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

Hypericumandrosaemum

Family
Hypericaceae (hy-PER-ee-KAY-see-ee)
Genus
Hypericum (hy-PER-ee-kum)
Species
androsaemum (an-dro-SEE-mum)
Synonym
Hypericum x inodorum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Deciduous
Good Fall Color
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Hardiness
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)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °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:

Cathan, Washington

John Sam Lake, Washington

North Marysville, Washington

Olympia, Washington

Priest Point, Washington

Shaker Church, Washington

Stimson Crossing, Washington

Weallup Lake, Washington

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Gardener's Notes:

0
positive
0
neutral
0
negative
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