Plant Care Great Rhododendron

Great Rhododendron

Also known as

Great Laurel, Great Laurel, Rosebay rhododendron, Great rhododendron, American rhododendron and Big rhododendron


Rhododendron maximum

How to care for Great Rhododendron


How often to water your Great Rhododendron

Water needs for Great Rhododendron
0.5 cups
every 9

Great Rhododendron needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Las Vegas, Nevada.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Great Rhododendron

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Plant care guide for Great Rhododendron in Las Vegas, Nevada

Las Vegas, Nevada

43% Low

Growing Great Rhododendron in Las Vegas right now

Light needs for plant Great Rhododendron in Las Vegas, Nevada

Plant growth potential is currently low 📉

January 29th, 2023

Sunlight intensity as measured by “net radiation” in Las Vegas is currently low 📉.

The availability of high quality sunlight in your home impacts ability for plants to thrive and is key in determi…

Read more

Light needs for plant Great Rhododendron in Las Vegas, Nevada

Sunlight will increase by 28.9% ☀️

January 26th, 2023

Las Vegas is trending towards greater sunlight intensity!

The amount of sunlight in Las Vegas is expected to increase by 28.9% over the next 2 weeks to an average of 12.0 megajoules of energy per …

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Light needs for plant Great Rhododendron in Las Vegas, Nevada

Daylight will increase by 0.8 hours 📈

January 26th, 2023

This month, Las Vegas is getting an average of 9.3 hours of clear sky sunlight per day.

Hours of daylight will increase by 8.3% over the next two weeks. Your plants will get 10.5 total hours of da…

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Finding light for Great Laurel in your home

Light needs and placement for plant Great Rhododendron: 1ft from a window
1ft or less from
a window

Great Rhododendron love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to ensure it receives enough light to survive during this time of reduced sunlight intensity in Las Vegas, Nevada ⛅.

Great Rhododendron does not tolerate low-light 🚫.


How to fertilize Great Rhododendron

Nutrient, fertilizer, and repotting needs for Great Rhododendron: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Great Rhododendron after it doubles in size or once a year—whichever comes first.

Difficulty Level

Great Rhododendron is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!

Water Needs
Sunlight Needs
Native Region
Growth Pattern
Growing Outdoors

Care Summary for Great Rhododendron

Great Rhododendron

Great Rhododendron

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on your location in Las Vegas, Nevada, the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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