Hardiness: 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) 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) USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure: Full Sun
Danger: Seed is poisonous if ingested Parts of plant are poisonous if ingested All parts of plant are poisonous if ingested
Bloom Color: Inconspicuous/none
Bloom Time: N/A
Foliage: Grown for foliage Deciduous Smooth-Textured
Other details: May be a noxious weed or invasive Requires consistently moist soil; do not let dry out between waterings Very high moisture needs; suitable for bogs and water gardens
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 spores
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On May 27, 2007, northgrass from West Chazy, NY (Zone 4b) wrote:
I have to rate this plant one of the worst weed to infest part of my garden. It definitely spreads by roots and by seeds; it is growing in my lawn and through my hostas and ferns. I have put a barrier between my long garden edge and I am keeping an eye on it. Tried Round-up but does not seem to impede its growth in any way. As mentioned before, pulling it out is futile as it sprouts more stems. Anyone knows how to deal with this plant?
On Jul 21, 2005, Weezingreens from Seward, AK (Zone 3b) wrote:
As a gardener, this plant has been a stubborn and unwelcome visitor in my garden beds. The roots go deep into the soil, spreading new shoots periodically. It is very hard to eradicate. If broken off at ground surface, it tends to come back up with more stems than before. However, growing at the base of a tree or the edge of the woods, it is quite beautiful most of the summer.
In the spring, E. arvense first grows as a single, tan stem with a swollen, spore-bearing tip. The green branches appear later. In both stages, the stem is jointed and can be pulled apart and rejoined. Mature plants can be used for scouring cook pots when camping.
This plant has been said to grow in the following regions:
Bear Creek, Alaska Sedona, Arizona Ceres, California Loch Lynn Heights, Maryland Bridgewater, Massachusetts Southfield, Michigan Traverse City, Michigan Farmington, New Hampshire