Photo by Melody

PlantFiles: Deciduous Azalea
Rhododendron 'Admiral Semmes'

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Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Cultivar: Admiral Semmes

» View all varieties of Azaleas and Rhododendrons

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Category:
Shrubs

Height:
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade

Danger:
Parts of plant are poisonous if ingested

Bloom Color:
Gold (Yellow-Orange)

Bloom Time:
Late Spring/Early Summer

Foliage:
Deciduous

Other details:
Average Water Needs; Water regularly; do not overwater

Patent Information:
Patented

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By Zonebuster35
Thumbnail #1 of Rhododendron  by Zonebuster35

By Zonebuster35
Thumbnail #2 of Rhododendron  by Zonebuster35

Profile:

1 positive
No neutrals
1 negative

Gardeners' Notes:

RatingAuthorContent
Negative Fires_in_motion On Sep 10, 2014, Fires_in_motion from Vacherie, LA (Zone 9a) wrote:

I was given one in late 2011 by the Crosby Arboretum in Mississippi. (I've never seen them anywhere else.) Despite its constant fungal leaf problems, I always persisted in keeping it. I live in SE Louisiana, which is the perfect habitat for this plant, and I kept mine in dappled shade (of a live oak), as they like / require. Despite spraying it with copper octanoate several times a year, the leaf spotting just kept coming back and ravaging the plant. If you've ever tried to keep a fig tree around here, you'll know what I'm talking about when I say the leaves looked just plain BAD, meaning yellow, orange & brown amidst the green. Some nursery people to whom I've spoken agreed with me that this is just not a very good variety. Yesterday I decided to throw the plant away rather than put it in the ground and risk it infecting my other plants. (By the way, it barely grew in 3 years.) Having to spray a native plant for fungal problems is simply a deal-breaker for me. I want my plants, especially my native plants, to be bulletproof in our severe humidity / rainfall. It did send up a vigorous vertical water shoot this year, but I think that was from the rootstock, not the Admiral Semmes upper stock. It's very rare for me to give a negative rating (or even a neutral rating) on DG, but I feel this plant merits it.

Positive akt On Nov 22, 2013, akt from Springfield, VA wrote:

The Admiral Semmes deciduous azalea is a cross between the Florida Pinkxster Azalea R. austrinum and an Exbury hybrid named Hotspur Yellow. It is fragrant with nice almost yellow trusses.

Regional...

This plant has been said to grow in the following regions:

Mobile, Alabama
Deltona, Florida
Raleigh, North Carolina
Springfield, Virginia



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