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

Thursday - October 01, 2009

From: Santee, CA
Region: California
Topic: General Botany
Title: USDA Hardiness Zone of Rancho Bernardo, CA
Answered by:

QUESTION:

What plant zone is Poway, Rancho Bernardo CA?

ANSWER:

We're afraid we don't know what Poway is, another smaller area of the planned community Rancho Bernardo? Anyway, let us introduce you to a super website, the USDA Hardiness Zone Map. Click on California from the two-letter abbreviations beneath the map, and you will see the zones delineated for the entire state of California. Remember, these are pretty arbitrary, there are no physical barriers between Zone 10a and Zone 10b, for example. It just makes it easier to understand what plants can and cannot live in a particular area. Look at the map of California, looking down at the southwestern corner of California, where San Diego County is, and you will see basically vertical stripes of color. When you compare those to the list of colors and Zones on the left side of the page, you will see that, in that area, the zones range from 10a to 11, with average annual minimum temperatures ranging from 30 to 40 deg. F.

 

More General Botany Questions

Plants adding calcium to soil
June 08, 2006 - Hi, I am looking for a resource to help determine the functions of native plants. For instance, nitrogen fixing can be found in Indigo, Lead plant, lupines. Are there other plants that add back cal...
view the full question and answer

Native vs Non-native Insect Host Plants
March 14, 2013 - My understanding of a host plant is that it is a plant that an insect will lay its eggs on. Is this correct? If this is so then can a cultivar be a host plant for the same insect? I have read Mr. Doug...
view the full question and answer

Yellowing of palm tree leaves
May 14, 2008 - I want to know about palm trees. The leaves are turning yellow.
view the full question and answer

Native plants as accumulators of heavy metals in Texas
March 29, 2008 - I would like to know of any native plants that could be used as hyperaccumulaters of heavy metals in Texas.
view the full question and answer

Endemic plants for the Edwards Plateau
March 23, 2008 - Thanks so much for the info. it will be very helpful with the boys and we really stress "Leave No Trace Behind". The pictures will be enough. Thanks again!!
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