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

Tuesday - June 06, 2006

From: Salt Lake City, UT
Region: Southwest
Topic: Privacy Screening, Cacti and Succulents
Title: Boundary plants to control cats
Answered by: Nan Hampton

QUESTION:

Is there a plant especially ANNOYING to cats that I could plant along my fence line to keep him away from the street beyond? It would have to be hardy enough for hot temps & full sun. Thanks!

ANSWER:

Here are some suggestions from Animal Care Services in Berkeley, CA for repeling cats. They, along with several other sources, recommend the herb, common rue (Ruta graveolens) for repeling cats. However, I would be very doubtful that it could keep your cat from going out into the street. A solid hedge of very prickly cactus might be a deterrent, but I wouldn't count on it either. You might consider an invisible electric fence to keep him in the yard and away from the street.

 

More Cacti and Succulents Questions

Yucca with halticotoma valida bugs in Burleson TX
April 18, 2010 - I have had Yucca plants in my yard for 10 years, but this year is the first time I have seen halticotoma valda, and there are thousands of them. How do I get rid of them? are they harmful to the plan...
view the full question and answer

Ingestion of agave sap from Albuquerque NM
June 11, 2013 - My boyfriend was out in the Arizona desert without water for two days and sought moisture through what he thought was a yucca plant but instead we believe was agave. He sucked the moisture off the ins...
view the full question and answer

Are agaves really native from Pacific Palisades CA
April 30, 2013 - I just replied re agave issues, and mistakenly asked the source of your information. I see that you clearly noted it, apologies. I would note, however, that the Riverside area is very much a hot,...
view the full question and answer

Plants for hanging flower boxes from Austin
July 27, 2013 - I have two long flower boxes 17" x 15" x 25 feet long one on the north side of the apt and one on the south made of metal suspended about four feet from the ground. One will get the morning sun and ...
view the full question and answer

Root depth of opuntia
May 15, 2007 - What can you tell me about the depth of roots of the opuntia? Does it vary with different varieties or is there formula to estimate the depth according to the mature size or to the culture - garden ...
view the full question and answer

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