En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

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
2 ratings

Monday - June 02, 2008

From: Alexandria, VA
Region: Mid-Atlantic
Topic: Trees
Title: Is Ilex glabra Shamrock a female cultivar
Answered by: Nan Hampton

QUESTION:

I have an ilex glabra "shamrock". Is it a FEMALE cultivar? I have only found information that the "compacta" and the "nigra" are females. I have a male ilex glabra and was hoping to have berries for the wildlife.Thanks.

ANSWER:

It is not absolutely clear from the information available whether Ilex glabra 'Shamrock' is female or can be either male or female. Missouri Botanical Gardens is somewhat ambiguous about whether 'Shamrock' can be either male or female. On the other hand they do say that 'Compacta' is a female cultivar and the University of Connecticut Horticulture site also says that 'Compacta' is a female cultivar. The University of Ohio Horticulture site also says the 'Nordic' (or 'Chamzin') is a male cultivar. Ohio State University and Floridata both have the same information about 'Compacta' and 'Nordic'. None of these sites designate 'Shamrock' as either male or female, so I suspect that 'Shamrock' could have either male or female flowers. You would have to wait until it blooms to be certain. Duke University has good photos of the male flowers of Ilex glabra. I couldn't find a photograph of female flowers, but you can see a line drawing of both male (right) and female (left) flowers on the USDA Plants Database. Male flowers appear in clusters. Female flowers are single. You do need a female plant in order to get berries so if you want an Ilex glabra (inkberry) with berries, you might look for a 'Compacta' cultivar.


Ilex glabra

Ilex glabra

 

 

More Trees Questions

Problems with Live Oak in Boerne TX
April 24, 2011 - I had my large Live Oak trimmed last year. This spring there seems to be a problem with leaf growth. Most leaves are small in nature and appear to have been attacked possibly by bugs. Many of the bran...
view the full question and answer

a source for fruitless olive (non-native) trees
June 29, 2012 - I was given a "mexican olive" several years ago which is doing very well. This one is non-fruiting and I would like to have another that is non-fruiting but cannot find one. Cordia boissieri see...
view the full question and answer

Fast growing native hedges for Sachse, TX
March 30, 2007 - I just bought a house in Sachse, Tx and want to plant a privacy hedge. It will be about 220' long and I want it to grow to at least 10'-12' high. I also want it to be fast growing and be evergree...
view the full question and answer

Small trees for NJ shore
April 22, 2011 - Hello! What's a good native shrub or small tree to feature in my front yard in Brigantine, NJ, on the Jersey shore. Sunny site, dry, sandy soil. The yard is very small. I'm trying to design a l...
view the full question and answer

Problem with Chinese Pistache tree
September 01, 2014 - We have a gorgeous Chinese Pistache in our yard, about 25 feet tall. We bought it for its gorgeous fall color. The problem is that it has never turned color for us. All the other pistaches in the neig...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center