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

Tuesday - April 24, 2012

From: Hendersonville, NC
Region: Southeast
Topic: Rain Gardens, Grasses or Grass-like, Herbs/Forbs, Shrubs
Title: Retention pond from Hendersonville NC
Answered by: Barbara Medford

QUESTION:

We have a retention pond that has recently been cleaned and we would like to plant perennial native plant and grass seeds that will enhance the appearance and contribute to the natural process of filtration, hold the soil when water is rushing by and permit pollutants in the water to be filtered out. What time of the year should the seed be planted and able to stand generally wet feet?

ANSWER:

From the EPA, here is an article on National Pollutant Discharge Elimination System, which is about retention ponds.

With that in mind, we have two very similar questions in our queue; one is yours from North Carolina and another is from Michigan. We suggest you read the Michigan answers for some background information:

Grand Haven MI

White Lake MI

Mason MI

We found a previous Mr. Smarty Plants question originating from Virginia which we think might have some information of use to you. There are some more links to further information in that, and instructions on using our Native Plant Database. Since we don't know if you want all grasses, how moist your soils are, how much sunlight they will get, etc, we think it would be better if you made your own plant list. Native grasses are certainly the best choice as their long fibrous roots will definitely help to hold the soil. As for the time the seeds should be planted (or plants if you are putting in some shrubs) is dependant on the part of the country. In Texas, we recommend planting grass seeds in mid-April, and hoping for gentle consistent rains, which we seldom get. If you go down the webpage on each plant you are investigating to the bottom you will see a list of Additional Resources. Click on "Search Google for ______ (plant name). Sometimes the webpage will have specific Propagation Instructions on it.

 

 

 

 

More Shrubs Questions

Mountain Laurel not growing in Hallettesville, TX.
September 16, 2012 - Mountain laurel has been planted over 2 years. Well drained,sandy soil, full sun. They have not grown or set blooms despite occasional all purpose fertilizers. What is wrong?
view the full question and answer

What is difference between Rhododendrons and Azaleas
April 23, 2008 - I am replanting my entire front yard as a native woodland garden (I am on Long Island, NY). I am having a hard time finding native rhododendrons and/or azaleas. I would prefer to remain true to the ...
view the full question and answer

Improving blooming on mock orange
March 03, 2008 - I have a now 6 yr. old mock orange shrub in the garden which has never bloomed, darn it. I have fed, not fed, mulched, not mulched, sheared, not sheared. What gives? Will it ever bloom, or shall I ...
view the full question and answer

Pruning Ageratina havenensis from Magnolia TX
June 18, 2013 - I planted a Eupatorium havanense last year here in the last sandy finger of the piney woods; it gets full sun in a well-drained raised bed, where it flowered well. I pruned it fairly close, and it cam...
view the full question and answer

Plants for pool area in Florida
May 09, 2008 - My husband and I have a pool with 4 planters and are looking for plants that we can put into our screened in pool area. We live in Central Florida and looking for ideas of plants that are slow growin...
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