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

Saturday - March 24, 2012

From: Charlton, MA
Region: Northeast
Topic: Non-Natives, Watering, Herbs/Forbs
Title: Care for non-native 'Glacier Blues' from Charlton MA
Answered by: Barbara Medford

QUESTION:

Do you have to prune or cut down Glacier Blues in the garden? My plants look brown and wilted.

ANSWER:

Common names of plants make us crazy. In searching for the plant you are asking about, we got this result from Perennial.com, on Euphorbia characias 'Glacier Blue.' From the same website, we found this information on Veronica prostrata Glacier Blue.The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is dedicated to the growth, propagation and protection of plants native not only to North America but to the area in which those plants grow natively. These plants are both cultivars or named selections of plants, and will not be in our Native Plant Database.

Euphorbia characias (Mediterranean Spurge) is native to, well, the Mediterranean area of Europe. Here is an article from Floridata on this plant that can give you more information than we can.

Veronica prostrata does not appear in our database, but there are 8 members of the genus Veronica (speedwell) native to Massachusetts that do. We chose Veronica officinalis (Common speedwell) as an example. We have no pictures of this particular species in our Native Plant Gallery, but here are pictures of it from Google. We found this article from the Missouri Botanical Garden on Veronica prostrata, which says it is native to Europe and, therefore, like the Euphorbia characias, it will not appear in our Native Plant Database.

Our first thought when you mentioned the symptoms you were having was of poor drainage in the soil; that is, water is not draining away from the roots normally and the roots are stressed or even drowning. Sure enough, from the referenced article from Missouri Botanical Garden, we excerpted this comment:

"Easily grown in average, medium, well-drained soil in full sun to part shade. Avoid wet, poorly drained soils. Plants may be sheared after flowering to revitalize and to encourage new foliage growth."

It will be up to you to figure out which "Glacier Blue" is the plant you are growing, and from the references we have given you, ascertain what has caused the problem, and correct it.

 

 

 

More Watering Questions

Redbud leaves turning yellow in mid-summer
July 13, 2012 - The leaves on our redbud trees are turning yellow. The yellow leaves are pale with no other spots and no dark veins. I don't know for sure which variety of redbud they are or how old they are (more t...
view the full question and answer

Survival of bluebonnets in extreme heat from Tioga TX
September 03, 2011 - Is there anything I can do for my bluebonnet patch in this extreme drought for the rest of the summer and fall? Should I have watered this summer? I had a good show and think seeding was fairly normal...
view the full question and answer

Need help with my Mountain Laurel in Sugarland, TX
June 22, 2011 - Texas Mountain Laurel - My plant's leaves are turning yellow and falling off. I don't know if this is caused from over watering or under watering. I have skipped days of watering to see if it will h...
view the full question and answer

Water use rate calculations from Toronto ON
December 16, 2012 - Can the high medium and low water use categories be quantified into a rate, say volume of water required by square foot of planted area? How are the water use categories established?
view the full question and answer

Daily water absorption of live oak from soil
December 04, 2003 - How much water does the live oak absorb from the soil per day?
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center