Transplanting Azaleas in Massachusetts: Late Summer, Mycorrhizae, Harpin Protein

Best time: late summer/early fall. Metabolism slows, dormancy approaches. Spring growth starts fresh in new soil.

Critical Additions

• Mycorrhizae: Fungi that boost water/nutrient uptake 10–1000x. Broken during transplant. Reapply at planting (e.g., Mycorrhizal Applications endo-mycorrhizae).
• Harpin Protein (Messenger): Triggers cell repair, reduces transplant shock. Spray leaves, water in excess. Benign, non-toxic.

Do NOT Fertilize

Chemical salts damage mycorrhizae. Let roots establish with fungal partners first.

Soil Prep

Loamy, chemical-free soil ready. Mycorrhizae + Harpin = all you need.