Azalea ‘Johanna’


Azalea ‘Johanna’ in a 5 litre pot.

Availability: Out of Stock

Nationwide Delivery

SKU: 240623 Categories: , , ,


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

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.


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.

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Nationwide Delivery

Deliveries will arrive within 2-3 working days

Selected products are available for signed for nationwide delivery from £4.99.
Larger items are charged at £15.00
Smaller items such as seeds cost £2.50.

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  • Orders must be placed by 11.00am to be processed the same day.
  • Dispatch days Monday - Thursday (exc. Bank Holidays).
No minimum order for products that can be delivered using this service
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