There are
more than 1200 different natural species
in the Genus (group) Rhododendron.
How many varieties of rhododendrons are there?
There are
over 800 species
in the genus Rhododendron, some say 1000! Azaleas are are included in the genus Rhododendron. Rhododendrons are native to many parts of the world, both tropical and temperate. The more hardy types are found in China, Japan, and eastern and western North America.
How do I know what kind of Rhododendron I have?
Examine the blossoms of your rhododendron. Rhododendron flowers vary in color and size, as well as the
number
of blooms in a cluster. While rhododendron galactinum has white or pink blossoms that grow in clusters of about nine blossoms, rhododendron Capistrano has yellow blossoms in clusters of 15.
What is the most common type of Rhododendron?
- Rhododendron Elviira.
- Rhododendron Blue Peter.
- Rhododendron Boule de Neige.
- Rhododendron Bow Bells.
- Rhododendron Windsong.
- Rhododendron White Angel.
- Rhododendron Nova Zembla.
- Rhododendron Black Satin.
What is the hardiest Rhododendron?
In the 1980s, a series called
Northern Lights
was introduced. These are the hardiest rhododendrons ever found or produced. They can withstand temperatures in zone 4 and even possibly zone 3. The series are hybrids and crosses of Rhododendron x kosteranum and Rhododendron prinophyllum.
What is the fastest growing rhododendron?
Many rhododendron plants grow from 3 to 4 feet in 10 years, but some can grow up to 7 feet in 10 years. Some of the fastest growing rhododendrons are the
Brittenhill Bugle, R. genestierianum, Ilam Cream, Mother of Pearl, Professor Hugo de Vries
, Spicy Nutmeg, and the Whidbey Island.
Where is the best place to plant a rhododendron?
Unlike many blooming plants, rhododendron does not like full morning sun in winter and does best when planted in
dappled shade on the north side of a building
. Growing rhododendrons are happiest in a location protected from the wind and not under eves of a building.
Do Rhododendrons like full sun?
Plant in full sun
to increase flowers and avoid mildew problems. Shrubs need a minimum of 6 hours of full sun daily. Plant on the sheltered side of a windbreak. If subjected to cold, dry winds, their leaves and buds dry out and die.
Are all Rhododendrons poisonous?
| Plant Azalea and Rhododendron | Type of Poisoning Internal poisoning | Poisonous Part All parts |
|---|
Are Rhododendrons poisonous to dogs?
All parts of the rhododendron plant
are toxic for dogs
. Symptoms include gastrointestinal upset followed by weakness, paralysis, and abnormal heart rhythms. Large doses can be fatal.
How long do Rhododendrons stay in bloom?
Coveted for their spectacular blooms which come in a wide range of shapes and colors, Azaleas and Rhododendrons usually proudly display their colorful blooms in spring for
about three weeks
, depending on the weather.
Is a rhododendron a tree or bush?
Rhododendron is a
genus of shrubs and small to (rarely) large trees
, the smallest species growing to 10–100 cm (4–40 in) tall, and the largest, R. protistum var. … There are alpine species with small flowers and small leaves, and tropical species such as section Vireya that often grow as epiphytes.
Do deer eat Rhododendrons?
White-tailed
deer are strictly plant eaters
. … If you have rhododendrons in your garden, and deer in the neighborhood, you probably also have a 5-foot browse line, with green leaves above and brown branches below. Deer love rhododendrons, especially in winter.
Do rhododendrons like coffee grounds?
Fresh Coffee Grounds
for Acid-Loving Plants
Your acid-loving plants like hydrangeas, rhododendrons, azaleas, lily of the valley, blueberries, carrots, and radishes can get a boost from fresh grounds. … Don’t use coffee grounds on seedlings or very young plants, as caffeine can stunt their growth.
What is the best rhododendron to buy?
- The Mighty Rhododendron. …
- Rhododendron ‘Elviira’ …
- Rhododendron ‘Blue Peter’ …
- Rhododendron ‘Boule de Neige’ …
- Rhododendron ‘Bow Bells’ …
- Rhododendron ‘Windsong’
Why is Rhododendron bad?
Its leaves are poisonous to animals
. Its foliage is so thick that nothing can grow underneath. In 2014, two experienced hillwalkers had to be rescued when they became trapped in an “impenetrable forest” of rhododendrons.
