Look at those flowers Rhododendrons always impress!
The Basics as simply as 1, 2, 3…
1. Rhododendrons must have a constant supply of moisture. You may occasionally see a rhododendron that will survive without being watered, but it does so only under protest.
2. Rhododendrons must never sit in stagnant water. Roots submerged in poorly oxygenated water will likely die, though a plant may survive through better drained surface roots..
3. Rhododendrons must be grown in an acid medium (pH 5-6) that is coarse enough for the roots to have access to needed oxygen.