Lysimachia Species, Creeping Jenny, Dense-Flowered Loosestrife, Golden Globe Loosestrife

Lysimachiacongestiflora

Genus
Lysimachia (ly-si-MAK-ee-uh)
Species
congestiflora (kon-jes-tih-FLOR-uh)
Synonym
Lysimachia gymnocephala
Lysimachia nigropunctata
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Height
under 6 in. (15 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
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 rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Oakland, California

Baton Rouge, Louisiana

Shreveport, Louisiana

West Plains, Missouri

Cheraw, South Carolina

Greenville, South Carolina

Canyon Lake, Texas

New Braunfels, Texas

Seattle, Washington

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Gardener's Notes:

4
positives
1
neutral
0
negative
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T
Canyon Lake, TX | April 2012 | positive

Absolutely the best yellow flowering ground cover I have ever experienced. I've had this planted for 5 years. It continually amazes me ho...Read More

E
Annapolis, MD | July 2010 | positive

I love this plant,but it seems marginally hardy here in Maryland.
I had some that survived and some that did not last year....
...Read More

A
Baton Rouge, LA (Zone 8b) | May 2004 | positive

My Eco is very fast spreading in part to full shade but will also tolerate a fair amount of sun. Talk about color for a shady area - thi...Read More

J
J
Oakland, CA (Zone 9b) | July 2003 | positive

Had to keep the snails/slugs off with Sluggo while this got established, but it is now quite large, living happily at the feet of a 5-yr ...Read More

L
Grove City, OH (Zone 6a) | February 2003 | neutral

Do not cover seeds.

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