Azalea japonica 'STEWARTSTONIAN' The Gable azalea
size/type
low or groundcovering,low or groundcovering
usual height
1-1,8m
usual width
1-1,5m
leaves
evergreen broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
May-June
location
semi-shade to shade
USDA zone (lowest)
5 (down to -29°C)
winter protection
for zone 5+6
for zone 7
categorized
Gable azalea hybrids come from Pennsylvania, USA, and were developed by Joe Gable. The results are very hardy crosses of evergreen azaleas with extended flowering period and more reliably evergreen foliage in winter.
Description of the plant:
Stewartstonian is becoming the most sought-after evergreen azalea with red flowers. The red is soft, almost orangey red, as far as we can talk about orange in Japanese azaleas. It grows moderately and forms a fairly compact shrub that does not need to be pruned. Slightly glossy leaves are ovate, small, and dark green in spring and summer, changing to mahogany brown or burgundy red in autumn and winter. Its winter leave persistence is excellent not only in semi-shade and shade, it loses only a few portion of leaves in full sun.
Japanese azaleas can be clipped to shapes in early June. If so, do not use fertilizers enhancing growth rate. The size of new branches would get out hand and spoil the shape you are going to achieve. They need light, permeable soil that is acid, constantly moist (keep azaleas mulched at all times) and moderately fertile. Use fertilizers for rhododendrons and azaleas, or ericaceous plants. The best soil mix is 1/3 of peat, 1/3 of leaf-mould or lime-free compost, and 1/3 of soil from the hole where you are going to plant it. Azaleas have shallow roots, so do not plant them too deep. They are fully hardy to about -29°C (USDA zone 5).
Last update 19-01-2008.
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
