Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Wednesday - June 17, 2015

From: Baltimore, MD
Region: Mid-Atlantic
Topic: Pruning, Shrubs
Title: Cutting back a Rhododendron in Maryland
Answered by: Anne Van Nest

QUESTION:

I have a planting of six shrubs across the front of my house (alternating azalea & rhododendron). All have died except for one huge rhody & a small azalea next to it. Can I cut the huge rhody back to maintain some scale to new replacement shrubs or would it be best to let it go, too, since some ailment has taken the others? Can you recommend some native shrubs for the new planting? Many thanks.

ANSWER:

You should probably leave the large rhododendron at full size since it is growing well. You can prune rhododendrons and the best time is in the spring. The next best time is after they bloom. The American Rhododendron Society has a factsheet online for pruning rhododendrons that you might like to read.

To find a list of native shrubs that would be good companion plants for your rhododendron, go to the Native Plant Database  and search for Maryland, shrub, perennial. Then select your sunlight levels and soil moisture to get a large pool of plants to make your next choices. Consider heights, texture and blooming times so there is some variety in your planting.

 

From the Image Gallery


Eastern sweetshrub
Calycanthus floridus

American beautyberry
Callicarpa americana

Coastal pepperbush
Clethra alnifolia

Northern bush honeysuckle
Diervilla lonicera

Swamp sweetbells
Eubotrys racemosus

Sheep laurel
Kalmia angustifolia

More Pruning Questions

pruning crape myrtle (ugh, non-native)
March 05, 2012 - We would like to plant a Dynamite Crape myrtle in front of our front window. They grow 20' to 30'. Can I trim it each year to about 15' to 20'? Should we plant it approximately 5 feet from the ...
view the full question and answer

Non-native Pride of Barbados from San Antonio
August 26, 2011 - I have some very successful wildly blooming "Dwarf Pride of Barbados" plants growing in my xeriscape garden. Each year I cut them back to the ground. I have just purchased a new variety called "...
view the full question and answer

How to Prune a Mountain Laurel to make it more tree like in Hendersen, NV
April 28, 2011 - How do I prune a Texas Mountain Laurel into a tree? Just bought a 15 gal. with two trunks above the crown. Was told that multiple trunks are their natural growth, which is OK. But all research call...
view the full question and answer

When is the appropriate time to prune pecan trees in Hewitt?
September 07, 2008 - Labor Day Weekend my husband decided to trim all the low branches on a big pecan tree in our back yard which I thought should had been done at the first of the year, our temprature is in the mid 90's...
view the full question and answer

How to remove plume from Yucca elephantipes in NJ?
August 02, 2011 - In Manahawkin, NJ, how do we cut plume (2" diameter) off 10' Yucca elephantipes?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.