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
Not Yet Rated

Saturday - March 30, 2013

From: Gilbertsville , PA
Region: Mid-Atlantic
Topic: Diseases and Disorders, Trees
Title: Is yellow tulip poplar alive from Gilbertsville PA
Answered by: Barbara Medford

QUESTION:

How can I tell if my yellow tulip poplar is alive? thank you

ANSWER:

The best way to tell if any tree or woody plant is alive is the thumbnail test. We are assuming that your Liriodendron tulipifera (Tulip tree) has put out no leaves nor blooms; it ordinarily blooms green, yellow and brown from April to June. If you follow our plant link to the webpage on your tree you will find these growing conditions:

"Growing Conditions

Water Use: Medium
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist
Soil pH: Acidic (pH<6.8)
CaCO3 Tolerance: Low
Soil Description: Rich, moist soils.
Conditions Comments: Tulip tree is insect and disease free. It is intolerant of compacted soil and should not be placed in confined beds or planters near pavement. It grows very rapidly in deep, rich well-drained soils with uniform rainfall. Dry summer weather causes physiological problems. Tulip tree drops its foliage in response to drought and is somewhat weak-wooded."

According to this USDA Plant Profile, your tree does grow natively in Montgomery County in southeast Pennsylvania.

Now, the thumbnail test. With your thumbnail and beginning at the highest branch you can reach, make a very thin scraping of the outer bark. If there is a very thin layer of green beneath that outer bark, that branch, at least, is alive. If there is no such green layer,  continue farther down the tree in search of the green. If you can't find any, even down close to the roots, that tree is dead.

Okay, you probably want to know what it died of (if it is, indeed, dead). Honestly, we don't know, but here is a website from the Missouri Botanical Garden on the tree with some infomation on problems and diseases.

 

From the Image Gallery


Tulip tree
Liriodendron tulipifera

Tulip tree
Liriodendron tulipifera

Tulip tree
Liriodendron tulipifera

More Trees Questions

Why has my Kidneywood tree not put out leaves this year in Lockhart, TX?
July 06, 2010 - I have a native Kidneywood which I planted in 2003. It has grown enthusiastically since that time. It has always leafed late in the Spring, late April - mid - May. It bloomed several times in 2009. Th...
view the full question and answer

Treating scarred Gum Bumelia from Lampasas TX
June 05, 2013 - We have a very old Gum Bumelia with a scarred open tree trunk. In the past concrete was used to fill the scarred trunk. What is the acceptable method of helping the tree. More concrete or using blac...
view the full question and answer

Madrones in Michigan?
November 01, 2010 - Will a Arbutus menziesii (Pursh Pacific madrone) grow in Huron County Michigan? I'm at the "tip of Michigan's thumb".
view the full question and answer

Problem with baldcypress tree
May 27, 2011 - Two of my three 20 year old Bald Cypress trees appear to have leafed out but are now brown in parts of the tree. The brown area is at the tops of the trees which are probably 40 ft. high. They were...
view the full question and answer

Oak sap dripping on driveway in Austin
November 06, 2011 - Why would oak sap be dripping on driveway at this time when other oaks the neighbors have are not.
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