Planting PJM Rhododendron
- Choose a location with morning sun and afternoon shade, or bright filtered light. Avoid hot afternoon sun and windy sites.
- Plant in well-drained, acidic soil (pH 4.5–6.0). Amend heavy clay with pine bark or other organic matter, but do not bury the plant deeply.
- Dig a hole 2–3 times wider than the root ball and only as deep as the root ball. Set the top of the root ball 1–2 inches above the surrounding soil.
- Backfill gently, water thoroughly to remove air pockets, and apply 2–3 inches of pine bark or pine needle mulch, keeping it a few inches away from the stem.
Watering
Water deeply immediately after planting. For the first 2–3 months, keep the soil consistently moist but never soggy. Water 2–3 times per week during dry weather, soaking the root zone rather than sprinkling lightly. After establishment (about one year), water during extended dry periods.
Care & Fertilizer
- Fertilize lightly in early spring with a fertilizer formulated for azaleas/rhododendrons. Avoid over-fertilizing.
- Prune only after flowering if shaping is needed, since flower buds form for next year soon after blooming.
- Maintain mulch year-round to keep roots cool and conserve moisture.
Pollination & Flowers
PJM Rhododendrons produce lavender-pink flowers in early spring that attract bees and other pollinators. They do not require another plant for flowering.
Container Planting
Grow in a large container with drainage holes using an acidic potting mix. Water whenever the top inch of soil begins to dry, as containers dry out faster than garden beds. Refresh the potting mix every few years and protect the container from severe winter temperature swings.