En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Plants to grow in shady area near a pecan tree in Maryland

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Tuesday - March 26, 2013

From: Cambridge, MD
Region: Mid-Atlantic
Topic: Problem Plants, Shade Tolerant, Ferns, Grasses or Grass-like, Herbs/Forbs
Title: Plants to grow in shady area near a pecan tree in Maryland
Answered by: Nan Hampton

QUESTION:

I live on the Eastern Shore of Maryland. I have planted only natives in my front lawn. My backyard, which sports a pecan tree, fir, fig tree, and others I can't identify is dirt, just dirt. I have tried local grass seeds. Nothing takes. Do you have any suggestions?

ANSWER:

I think your problem is twofold:  1) shade and, perhaps, 2) the allelopathic effect of the juglone in the pecan tree.  Juglones are chemicals produced by trees in the Family Juglandaceae (Walnut Family) that are capable of inhibiting the growth of some, but not all, other plants. You can see lists of plants susceptible to juglones and those tolerant of juglones from Ohio State University.  (Be aware that not all the plants on their list are native to Maryland or even to North America.)  It appears that the level of  juglone in Carya illinoinensis (pecan) is less than in walnuts.  Grasses, in general, seem to be tolerant of juglones.  In fact, there have been studies showing that bermudagrass and tall fescue are allelopathic to pecan seedlings!

Here are three grasses and a sedge that occur in Maryland and will grow in the shade or part shade.  I have personal experience with inland sea oats growing quite happily under my walnut tree in Texas and suspect the other three species will also be tolerant of your pecan's juglones.

Chasmanthium latifolium (Inland sea oats)

Elymus canadensis (Canada wildrye)

Muhlenbergia schreberi (nimblewill)

Carex blanda (eastern woodland sedge)

Here are a few herbs and a fern from the Ohio State University list that are native to Maryland and will grow in the shade or part shade:

Arisaema triphyllum (Jack in the pulpit)

Dicentra cucullaria (Dutchman's breeches)

Sanguinaria canadensis (Bloodroot)

Trillium species such as Trillium grandiflorum (Large-flower wakerobin)

Tradescantia virginiana (Virginia spiderwort)

Viola canadensis (Canadian white violet) and Viola pedata (Birdfoot violet) and other violets

Osmunda cinnamomea (Cinnamon fern)

For all the species named above, you should check the other characteristics shown under GROWING CONDITIONS on the species page to determine if they match those of your site.

 

From the Image Gallery


Inland sea oats
Chasmanthium latifolium

Canada wild rye
Elymus canadensis

Nimblewill
Muhlenbergia schreberi

Eastern woodland sedge
Carex blanda

Jack in the pulpit
Arisaema triphyllum

Dutchman's breeches
Dicentra cucullaria

Bloodroot
Sanguinaria canadensis

Large-flower wakerobin
Trillium grandiflorum

Virginia spiderwort
Tradescantia virginiana

Canadian white violet
Viola canadensis

Birdfoot violet
Viola pedata

Cinnamon fern
Osmunda cinnamomea

More Ferns Questions

Tropical-looking landscape in Austin, TX
March 24, 2005 - I'd like to have a tropical-looking landscape in my front yard. What plants would you recommend for Austin, Texas? I would prefer plants that can stay outside year-round, but will take suggestions on...
view the full question and answer

Identity of fern-like plant in woodland garden
August 04, 2008 - what is the fern-like, hairy fleshy-stemmed, 12"-18" ht plant in my woodland garden
view the full question and answer

Suggestions for Texas native plants for memorial
June 30, 2005 - A dear friend of ours has passed and we would like some ideas of a native Texas plant we could plant in memory of her. It will be grown in the hill region near Houston. Thank you.
view the full question and answer

Low cost, low maintenance, water tolerants native plants for New Jersey
February 25, 2006 - I am planning a bed around my deck which will include shrubs and flowers. I am looking for plants that require a lot of water due to the wet soil conditions and poor drainage in my yard. Do you have...
view the full question and answer

Southern Woodferns in TX
May 06, 2010 - I have recently bought some 3 gallon southern woodferns, and have planted them in the shade in a low spot with clay soil. It seems to be a good location for the ferns, but a week or two after transpla...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center