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?

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

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

Thursday - April 30, 2009

From: Florissant, MO
Region: Midwest
Topic: Compost and Mulch, Shrubs
Title: Shelf life of hawthorn leaves in Florissant, MO
Answered by: Barbara Medford

QUESTION:

I have a bag of hawthorn leaves that were harvested in 2007. Do you know if they're still effective? How long is the shelf life of hawthorn leaves? Thank you for your assistance.

ANSWER:

Shelf life for hawthorn leaves? We don't understand your question. The only thing we have ever used leaves for is compost. There is one member of the genus Crataegus, Crataegus phaenopyrum (Washington hawthorn), native to Missouri. If compost is what you are planning to do with your bag of leaves, certainly you can dump them in. If there was some other reason for your question, please let us know.


Crataegus phaenopyrum

 

 

More Shrubs Questions

Plants for pool area in Florida
May 09, 2008 - My husband and I have a pool with 4 planters and are looking for plants that we can put into our screened in pool area. We live in Central Florida and looking for ideas of plants that are slow growin...
view the full question and answer

Plants for shade, poor soil in Park Ridge NJ
June 17, 2010 - Hello! I live in far northeast New Jersey, by the New York state border. I am looking for plants for areas of my lawn that nothing currently grows in - due to shade and poor soil quality - very rocky,...
view the full question and answer

New Jersey Tea shrub wilting and losing leaves
December 30, 2013 - I have New Jersey Tea shrubs transplanted last spring from nursery stock (18 tall, grown local) I live in SE WI. They are planted in part shade. There has been 6" of snow on the ground for weeks now...
view the full question and answer

Plant identification of thorny shrub in Tennessee
October 03, 2013 - I have a mid to dark green thorny type bush growing on my land in Cosby, Tennessee. I am originaly from NJ and I have never seen it before. The stalk is varigated and the thorns are plentiful and very...
view the full question and answer

Blooming of native swamp azalea in New York
July 04, 2006 - I have a native swamp azalea, very healthy, but it has never bloomed. Do you know why or how I could get it to bloom?
view the full question and answer

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