Host an Event Volunteer Join Tickets

Support the plant database you love!

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?

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - May 03, 2010

From: Glastonbury, CT
Region: Northeast
Topic: Non-Natives
Title: Failure to thrive of non-native Japanese maple
Answered by: Barbara Medford

QUESTION:

My 10 year old Japanese red maple leaves suddenly started to curl up and die at the end of summer last year. Only about a quarter of the tree leaved out this spring, branches are dead. Can I plant another in its spot? What could have happened?

ANSWER:

Acer palmatum, Japanese Maple, is native to China and (of course) Japan. Since the Lady Bird Johnson Wildflower Center is dedicated to the use, protection and propagation of plants native not only to North America but to the areas in which they are being grown, we have no information on this plant in our Native Plant Database. Here is an About.com: Forestry article How to Manage and ID Japanese Maple, which can give you a lot of information to help you discover the problems. The fact that you kept it alive for 10 years indicates you were doing a good job, as it is not ordinarily a long-lived plant, and this USDA Plant Profile does not even show it as growing in Connecticut. Hartford County, in central Connecticut, is in USDA Hardiness Zone 6, and the Japanese maple is hardy from Zones 5b to 8, so your temperatures should not have been the problem. If you know others are growing this tree in your area, you might contact the University of Connecticut Cooperative Extension Office for Hartford County. If this is something that has been happening in your area, they are closer to home and can give you more help than we can.
 

More Non-Natives Questions

Search for non-native Rosa Rugosa for Granbury TX
November 12, 2012 - I would like to find an old fashioned Rosa Rugosa (non-hybrid) to grow in central Texas. I know I've seen them occasionally when traveling in the central TX area. I want them for their rose hips. ...
view the full question and answer

Muscari neglectum image
March 23, 2007 - I am doing a school project and found a native plant on the native plant information network image gallery. It is plant NPIN Image Id 524. What is it's name?
view the full question and answer

Non-native, invasive creeping fig in Webster TX
May 26, 2013 - We've recently moved into a new home in the southeast Houston area. The back of our property has a long concrete wall (gets quite a bit of sun), which we thought we could cover with a spreading vine....
view the full question and answer

Yellow bands around edges of leaves in Whitney TX
July 20, 2009 - How can you tell whether esperanzas are getting too much water or not enough - ours have a small yellow band around the edges of the leaves - crape myrtles - same question
view the full question and answer

Survival of non-native windmill palm in Zone 6b
March 28, 2009 - Will a windmill palm survive a Zone 6b Michigan climate; if so would I have to wrap it up in burlap in wintertime?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.