En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Rhododendrons for afternoon sun

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
2 ratings

Wednesday - September 10, 2008

From: Brooklyn, NY
Region: Northeast
Topic: Trees
Title: Rhododendrons for afternoon sun
Answered by: Nan Hampton

QUESTION:

Thanks for your suggestion that I plant rhodedenrons in my Brooklyn garden. In fact, the only bushes I've planted in the past that have survived are rhodedenrons so your definitely right! Here's my problem- the 2 places I want to plant bushes get afternoon sun - one gets about 3 hours of mid noon sun, the other, 2-3 hours of late noon sun and I know rhod. prefer morning sun. Is there a particular variety that you would recommend for afternoon sun? Thanks.

ANSWER:

Although morning sun is preferable, Mr. Smarty Plants doesn't think your 2-3 hours of mid-noon and early afternoon sun will be a serious problem for any of the rhododendrons below, except for possibly, R. prinophyllum (early azalea) which prefers shade (less than 2 hours of sun per day).  The others do well in part shade (defined as 2-6 hours of sun per day) and R. canadense (rhodora) will grow in full sun. However, there are other factors such as soil pH and soil moisture that could make a difference in your success.  Since I don't know what your soil pH and soil moisture is, I can't really recommend one of these species over another.  I can, however, highlight those factors in each of the species:

Rhododendron arborescens (smooth azalea)—part shade and moist acidic soil.  This is a very hardy azalea.

Rhododendron calendulaceum (flame azalea)—part shade and dry acidic soil.

Rhododendron canadense (rhodora)—sun, part shade and wet acidic soil.

Rhododendron lapponicum (Lapland rosebay)—part shade and dry limey (alkaline) soil.

Rhododendron maximum (great laurel)—part shade and wet acidic soil.

Rhododendron periclymenoides (pink azalea)—part shade and wet acidic soil.

Rhododendron prinophyllum (early azalea)—shade and moist neutral soils.  This is a hardy azalea.

Rhododendron viscosum (swamp azalea)—part shade and wet acidic soil.

You might check in our National Suppliers Directory for a nursery in your area that specializes in native plants to see what they have available.  They could most likely advise you further about which species or cultivar would best suit your shade condidtions, soil type and moisture.

 

More Trees Questions

Plants for full-sun landscape
November 20, 2007 - I live in a very rocky area just outside of Fort Worth, TX. It's taken me all spring, summer & now I'm going into the fall, to landscape just 30 feet in front of my house. The front of the house get...
view the full question and answer

Time to transplant an Eastern Redbud in Pearland, TX
November 17, 2010 - When is the best time in the fall to transplant an Eastern Redbud tree in Pearland, TX? We have one approximately 6 feet tall in the back yard and want to move it to the front ASAP.
view the full question and answer

Trees & shrubs, low water, no maintenance, disease & pest resistant
May 04, 2013 - We need few Trees and shrubs to meet the following needs: - Low Water or best with a taproot for Ground Water - Clay Soil in Steep Slopes (25-40 degrees) - Low or No Maintenance. (hillside, no trim...
view the full question and answer

Tree that will not interfere with hardscape in San Diego
February 07, 2009 - I am looking for a small tap root tree that will reach max height of 20-25 ft. The area is only about 4 to 6 ft. to the house slab or driveway which I need to be very careful so it doesn't crack the...
view the full question and answer

Do non-native globe willows have a taproot from Midland TX
April 06, 2012 - Do globe willows have a tap root?
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