Photo by Melody

PlantFiles: False Lily of the Valley, Wild Lily of the Valley, Two-leaf False Solomon's Seal
Maianthemum dilatatum

Family: Asparagaceae
Genus: Maianthemum (may-an-the-mum) (Info)
Species: dilatatum (dil-uh-TAY-tum) (Info)

Synonym:Maianthemum kamtschaticum
Synonym:Smilacina dilatata

2 vendors have this plant for sale.

4 members have or want this plant for trade.


6-12 in. (15-30 cm)
12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

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)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Winter/Early Spring
Mid Spring

Grown for foliage

Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
By dividing the rootball
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; direct sow after last frost

Seed Collecting:
Properly cleaned, seed can be successfully stored

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There are a total of 9 photos.
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1 positive
1 neutral
1 negative

Gardeners' Notes:

Negative bellinghamroof On Jun 13, 2012, bellinghamroof from Bellingham, WA wrote:

No, No, No!! I planted this into my garden, and it was ever-so-lovely for a few years. Then I noticed that it had overwhelmed and killed several of my ferns. Then I tried to dig it up -- it's roots are worse than quack-grass and can go 8 inches deep, under tree roots, etc. I've not been able to erradicate it by carefully sifting the soil or any herbicide. Here's what my research showed: "[False lily-of-the-valley] is a major weed problem in cranberry bogs in western U.S.. It resists all means of control with registered herbicides and gradually smothers out the cranberry vines. Complete removal of all soil infected with false lily-of-the-valley or fumigation are the only two control methods currently available."

Positive bonehead On Nov 18, 2009, bonehead from Cedarhome, WA (Zone 8b) wrote:

This is a native plant in the Pacific NW. Whenever I bring forest dirt in to my flower beds, I get some of these. They make a nice groundcover and are easy to pull from areas you don't want them.

Neutral Terry On Jul 4, 2003, Terry from Murfreesboro, TN (Zone 7a) wrote:

A pretty plant in bloom, with spikes of white flowers rising above glossy, clean leaves. But it's invasive and care should be taken when incorporating it into beds where it may elbow out less vigorous plants.


This plant has been said to grow in the following regions:

San Francisco, California
Saint Paul, Minnesota
Grants Pass, Oregon
Salem, Oregon
Artondale, Washington
Bellingham, Washington
Stanwood, Washington
Vancouver, Washington

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