Scottish Bonsai Association

Bonsai A to Z Challenge

Challenging the Bonsai A to Z entry for Azalea (Rhododendron).

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Existing Bonsai A To Z Entry for Azalea (Rhododendron) Azalea (Rhododendron)  - (Tree Type (Outdoors)) Azaleas and rhododendrons are the same plant, both ericaceous (lime-hating), with thousands of cultivars. They are noted for the wide variety and vibrancy of colours of flowers which bloom mostly on "garden" specimens in mid-spring. Most popular for bonsai are the Satsuki Azalea (Rhododendron Indicum) which are distinguished by often having multiple different coloured blooms on the same tree. Also popular although less well recognised is the Kurume Azalea which is a hybrid of R. obtusum and R. kiusianum both native to the island of Kyushu, the southernmost island of Japan. STYLE : Best in all sizes and all styles, except broom. WARNING : Some fertilizers can be slightly alkaline so ensure truly ericaceous fertilizer only is used. More Info The "bonsai4me" website (see attached link) provides a comprehensive species guide for this species. The Satsuki Database from the Netherlands provides a comprehensive guide to types of Satsuki Azaleas. Care Info LOCATION : Prefers semi-shaded but warm position.  Susceptable to frost damage so best moved to sheltered (not indoor) position in winter. REPOT : After flowering. Annually when young or as roots fill the pot when they get older. SOIL : Acid (lime free) free draining soil : 30:70 grit:organic. Ph. 5.0-6.0. PRUNE : Branches in autumn. PINCH : Cut flower stems after flower starts to wither. Lightly prune secondary shoots until mid summer. WATER : Water well in growing season, sparingly in winter. Do not let soil dry out. FEED : Two weekly ericaceous feed during growing season, low nitrogen in autumn. WARNING : Some fertilizers can be slightly alkaline so ensure truly ericaceous fertilizer only is used. The "bonsai4me" website (see attached link) provides a comprehensive species guide.

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