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
1 rating

Tuesday - August 31, 2004

From: Philadelphia, PA
Region: Mid-Atlantic
Topic: Non-Natives
Title: Care of non-native, hybrid petunias
Answered by: Stephen Brueggerhoff

QUESTION:

I have a beautiful Petunia Tiny Tunia Violet plant which has been flowering nicely (in sun and shade environment). Suddenly, a few days ago, it began to look like it's dying--stalks all dried out. Is this normal? I have kept it moist. Should I cut it back and will it bloom next year? It is a perennial, isn't it?

ANSWER:

Hybrid garden petunias should be watered regularly, placed in well-draining, compost enriched soil. The plant may be responding to too much water; stem die-back like you have described is the result of a vascular problem, resulting from roots drying out from too little water, or root rot from too much water. The roots may also be affected by a soil fungal pathogen. If the roots die, then there is no nutrient and water delivery to the stems/vegetative tissue, causing the vegetative tissue to die. If the soil is remaining moist, allow the soil to dry out a bit and water sparingly. You may have to propagate vegetatively if the plant is in continual decline. You can reference this website for more information about petunia horticulture.
 

More Non-Natives Questions

Growing non-native Cabernet Sauvignon vines in Central Texas
July 01, 2013 - Hi. I recently moved into a remodeled home in Taylor, TX, and have experimented with Cabernet Savignon vines before. I have a 1/2 acre and a chain-link fence I want to put vines on. (I have a book o...
view the full question and answer

Invasiveness of non-native gooseneck yellow loosetrife in Maine
May 12, 2005 - I live in Maine, and purple loosestrife is invading our habitat. It outcompetes native species. Does gooseneck loosestrife have the same damaging qualities?
view the full question and answer

Growing non-native avocado outside from Austin
December 27, 2012 - My son has a very large avocado tree that he rooted from a pit that is currently growing in a large container. However, it has gotten too big to winter inside. Can it be planted in the ground in Aust...
view the full question and answer

Identification of red/yellow/black flower in California
April 15, 2013 - Plant found, April Mount Diablo CA 6 symmetrical petals red with a pattern of a yellow flower with black edge in the centre, I can not identify, please help.
view the full question and answer

Information on various plants from Alamo TX
November 15, 2009 - Have you heard of the following plants: Butterfly Iris,Compact Nanpina, Red Dwarf Turks? I would like to know some details on the above plant: size, flowers?, drought tolerant, where to plant Thanki...
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