Description
Johanna’ is a beautiful and compact evergreen azalea that features small and neat mid-green foliage. This stunning azalea variety produces stunning carmine-red flowers in late spring and early summer, creating a vibrant and eye-catching display in your garden. Its compact size makes it an excellent choice for small gardens, rockeries, or patio pots, where its striking flowers and glossy foliage can be admired up close. Overall, ‘Johanna’ is an excellent choice for adding a splash of color to your garden. It has been awarded the RHS Award of Garden Merit for its outstanding qualities.
Key Facts
- Common Name(s):Azalea ‘Johanna’
- Hardiness:Fully hardy
- How big will I get? Rhododendron ‘Johanna’ can grow to a height of 1m and a spread of 1m.
- Did You Know That:The name “rhododendron” comes from the Greek words “rhodon,” meaning “rose,” and “dendron,” meaning “tree”?
Plant Calendar
A rough guide to how this plant will change through the year.
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | |
| Flowering Time |   |
|
||||||||||
| Foliage Colour |  |
|
|
|
|
|
|
|
|
|
|
|
| J | F | M | A | M | J | J | A | S | O | N | D |
| |
|
||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
Care Guide
Soil Requirements
Rhododendron ‘Johanna’ prefers moist but well-draining soil. This plant requires acidic soil to thrive and cannot grow in neutral or alkaline soil conditions.
Best Position
Rhododendron ‘Johanna’ prefers a sheltered position and likes the sun but not too much of it, so an area that is partially shaded is perfect.
Maintenance
Rhododendron ‘Johanna’ is fairly low maintenance and doesn’t require any pruning.
Pest, Diseases and Wildlife
Rhododendron ‘Johanna’ can have problems with aphids, vine weevil and scale insects, it can be vulnerable to certain diseases such as powdery mildews and bud blast. It is also known to attract bees and butterflies. It is considered to be toxic.
