For your rhododendrons to truly flourish in Victoria, BC, catering to their specific needs will ensure they grow vibrant and healthy. Here are seven essentials:

1. Right Location and Light: Rhododendrons need a spot with dappled sunlight or partial shade. Too much direct sunlight can scorch their leaves, while too little can inhibit bloom production. Morning light with afternoon shade is ideal.
2. Acidic Soil: These plants thrive in well-drained, acidic soil (pH 4.5 to 6.0). Incorporate plenty of organic matter, such as compost or peat moss, to both amend the soil and maintain its acidity.
3. Proper Watering: Consistent moisture is key, especially during the dry summer months in Victoria. Rhododendrons have shallow root systems, so they dry out quickly but are also prone to root rot if overwatered. A deep watering once a week should suffice, adjusting based on rainfall.
4. Mulch for Moisture and Temperature Control: A layer of organic mulch around the base helps retain soil moisture, keeps the roots cool, and adds organic matter to the soil as it breaks down. Keep the mulch a few inches away from the stem to prevent rot.
5. Nutrition: Feed your rhododendrons with a fertilizer formulated for acid-loving plants in early spring, just before new growth starts. Avoid over-fertilizing, which can lead to leaf burn and poor plant health.
6. Pruning for Health and Shape: Prune right after blooming to shape the plant and remove any dead or diseased wood. Since rhododendrons set next year’s flower buds by mid to late summer, late pruning can remove these buds and reduce flowering.
7. Protection from Pests and Diseases: Keep an eye out for common issues like root rot, powdery mildew, and pests such as rhododendron borers and lace bugs. Use appropriate cultural or chemical controls as needed, focusing on organic and least-toxic options whenever possible.

With these seven care elements in mind, your rhododendrons can become a highlight of your garden in Victoria, showcasing lush foliage and stunning blooms that are well-adapted to the local climate.