Salvia Plants
Q.

Hardiest in Z-9b, Cold-Hot Agastache or Salvia?

Zone Z-9b so.Tex. | weasel added on August 28, 2011 | Answered

I have problems with Z-9 rated salvia in 90's temperature. I'm in southern Texas. Is Z-9 or 10 rated agastache better all around on the coast? Thanks.

A.
A.Answers to this queston: Add Answer
Heather
Certified GKH Gardening Expert
Answered on August 29, 2011

The problem may be that you are probably on the upper end of what your agastache can take. Zones are rated on the coolest winter time temperatures and not so much on the warmest end in the summer. On top of that, zones are a guideline, so some areas can have a year or even several years where their winter and summer temperatures are much higher or lower than what the zones suggest they will be.

If you are growing an agastache that is rated for zones 5-9 in zone 9 and you are having a warmer than average summer, the plant will struggle. If this is the case with your plants, then I would recommend looking for an agastache that is suitable for up to 10 to help hedge your bets.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Salvia Plants
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More