Geum Species, Bur Avens, Large-leaved Avens, Large Leaf Avens

Geummacrophyllum

Family
Rosaceae (ro-ZAY-see-ee)
Genus
Geum (JEE-um)
Species
macrophyllum (mak-roh-FIL-um)
Synonym
Geum fauriei
Geum japonicum
Geum perincisum
Geum sachalinense
Sun Exposure
Full Sun
Foliage
Evergreen
Succulent
Height
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Paradise, California

Melbourne, Kentucky

Portland, Oregon

WALTERVILLE, Oregon

Bellevue, Washington

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Gardener's Notes:

1
positive
0
neutral
1
negative
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G
Everett, WA (Zone 8b) | May 2011 | positive

This is a native here in Washington state. It is beautiful in wooded natural settings. It spreads, but is not too rampant in well-shaded...Read More

W
Seward, AK (Zone 3b) | September 2002 | negative

This an upright plant that can grow to over two feet high if conditions are right. It has pinnately divided sawtoothed leaves of a light ...Read More

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