Rent Shop Volunteer Join

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 - 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

Identification of Cryptomeria japonica for homeowners association
May 09, 2007 - Good morning. We are wondering if Cryptomeria japonica trees can fit under the term "pine like". We used the term pine like when asking for our home owners associations approval and we put in a Cr...
view the full question and answer

Classes for a nature lover in Frisco TX
August 16, 2009 - I have a question which I don't think is available in this website. I love plants & flowers,trees etc- just like you, I've only studied till my higher secondary school; now would love to study as we...
view the full question and answer

How many seeds in a Balsam Gourd fruit?
January 12, 2016 - How many seeds should I expect to find inside the fruit of Ibervillea Londoners?
view the full question and answer

Halophytic biofilter plants native to Wisconsin
July 12, 2013 - I am trying to design a biofilter using native WI plants. These plants must be very salt tolerant and low maintenance (as this biofilter will be used to treat storm water runoff from a salt shed), so ...
view the full question and answer

Smarty Plants on Hypogon
March 22, 2005 - How many sides does a hypogon have?
view the full question and answer

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