En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Native Annual Plant Substitute for Impatiens

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 - May 11, 2013

From: Westchester County, NY
Region: Northeast
Topic: Diseases and Disorders, Wildflowers
Title: Native Annual Plant Substitute for Impatiens
Answered by: Anne Van Nest

QUESTION:

What can be used as an annual flowering plant to substitute for the diseased impatiens? Is Vinca one you would suggest?

ANSWER:

The disease that is causing trouble for the cultivated garden impatiens (Impatiens walleriana) in at least 33 states is downy mildew. There's a good article in ScienceNews, the online magazine explaining the downy mildew problem on impatiens. There are no native vincas to suggest as substitutes, but there are several native annual flowering plants for you to consider. Some will bloom better with more sun.
To find an annual native plant substitute, the first place to go to find a list of potential plants is our Native Plant Database.  Use the Combination Search feature instead of Recommended Species. This will provide a bigger selection with much more choice to narrow down. The volunteers and staff at the Wildflower Center who maintain the database have partners in different regions to help with these recommended species lists based on what is easy to access in local nurseries.
Under Combination Search, select the following categories: Habit – herbaceous, Duration – annual, Light requirement – part shade or shade, Soil moisture – moist, height 0-3 ft.
Some of the impatiens substitution possibilities include:

Bidens cernua (nodding beggartick) yellow blooms August – October.

Capsicum annuum (chile pequin) white flowers followed by small green fruit turning red when ripe.  Hot, edible fruit.

Geranium viscosissimum (sticky purple geranium) purple/pink blooms May to August.

Mimulus bicolor (yellow and white monkeyflower) yellow blooms April to June.

Nemophila maculata (fivespot) white blooms with purple spots from April to July.

Rudbeckia hirta (black-eyed Susan) yellow daisy-like blooms from June to October.

Salvia coccinea (scarlet sage) white, pink or red blooms February to October.

Tinantia anomala (false dayflower) white, blue or purple flowers from March through May.

 

From the Image Gallery


Nodding beggartick
Bidens cernua

Chile pequin
Capsicum annuum

Sticky purple geranium
Geranium viscosissimum

Fivespot
Nemophila maculata

Black-eyed susan
Rudbeckia hirta

Scarlet sage
Salvia coccinea

False dayflower
Tinantia anomala

More Diseases and Disorders Questions

Fasciation on Texas Mountain Laurel
November 21, 2012 - Do Texas Mountain Laurel normally have a staghorn looking growth hanging on them after blooming in addition to the seed pod clusters or could this be a mutation?
view the full question and answer

Yaupons dying back in San Antonio
April 23, 2009 - I have 4 yaupon shrubs in the same area for several years. This past winter one turned brown from inside to outside very quickly. It is dead but the roots are not loose. The others began doing the sam...
view the full question and answer

Dying foliage on non-native Otto Luyken Laurel from Georgetown KY
April 09, 2014 - I have 5 luken laurel scrubs planted around foundation. They have done very well until this last winter..the foilage is now brown and crispy. Will they come back? Do I need to prune back the damage...
view the full question and answer

Leaves on new water oak turning brown from Matagorda TX
May 30, 2013 - We had water oaks planted in January when they had no leaves. Leaves came on but are now turning brown.
view the full question and answer

Apparent disease in peach tree in Austin
June 12, 2008 - I have a peach tree that the leaves are "bleeding" out on. The leaves are continuing to get paler and paler. There are no peaches on the tree this year either. What can I do?
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