Fragrant alder

Clethra alnifolia

I will explain the growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases and control methods of the Yellow-flowered Alder (Alnifolia).
 - Growth Characteristics:
- The Yellow-flowered Alder prefers rich, dense soil and grows best in acidic soil.
- It likes moderate moisture and thrives in well-drained locations.
- While it prefers sunny locations, it also grows well in partial shade.
- It grows to a height of approximately 1.5 to 3 meters and produces fragrant white flowers in the summer.
 - Propagation Methods:
- It can be propagated by seeds, cuttings, and division.
- It is best to harvest seeds in the autumn and sow them immediately.
- Cuttings should be taken in the summer or early autumn, and sufficient humidity must be maintained.
- Division is best done in the spring. 3. Cultivation Methods:
- The optimal planting season is from late spring to early autumn.
- Water regularly to prevent the roots from drying out.
- Apply organic fertilizer in the spring to promote growth.
- Pruning should be done after the flowers have faded, and the shape can be adjusted in early spring if necessary.
 - Uses in the Garden:
- It is suitable as a landscape plant due to its abundant blooms.
- It can be used in scented gardens due to its strong fragrance.
- It is ideal for placement along walkways, as a hedge, or for defining boundaries.
 - Major Pests and Control Methods:
- Major pests include aphids, scale insects, and powdery mildew.
- Aphids and scale insects can be controlled using a soap solution.
- For powdery mildew, ensure good ventilation and use an appropriate fungicide if necessary.

Based on this information, you will be able to properly care for and grow a healthy Japanese quince tree.

Plant Family	Alnus family
Height	90~240cm
Spread	120~180cm
Colors	white
Bloom Period	July~August
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-30°C

Mountain plum alder
Clethra acuminata

Celast's alder
Clethra alnifolia 'Caleb'