Rhododendron Planting and Care

Planting Guide for Rhododendrons

Water gel: From late Spring through early Fall, we use a water gel in our packaging to help keep plants moist during transit. Your plants roots may feel slick or slippery from the gel. It is not a problem with the plant and it can be planted with the gel still on it.

Summer Planting: When planting smaller, younger plants, it's important not to place them in full sun during the hot summer months. The intense heat can stress the plant and possibly kill it. Instead, consider transplanting it into a container and placing it in a shaded spot until the weather cools down. This will give your plant a better chance to acclimate and thrive without being overwhelmed by the summer sun and heat.

Site Selection: Choose a location that offers partial shade to full shade, with well-draining soil. Avoid areas with strong winds or extreme sunlight exposure.

Time of Year to Plant: Plant rhododendrons in the spring or fall. Avoid planting during the hottest part of the summer or during freezing temperatures in winter.

Spacing: Space rhododendrons according to their mature size, typically 2 to 6 feet apart, depending on the variety.

Soil Type: Rhododendrons prefer acidic soil with a pH range of 4.5 to 6.0. Ensure the soil is rich in organic matter and well-draining.

Planting: Dig a hole twice as wide as the root ball and slightly shallower than the root ball's depth. Place the rhododendron in the hole, ensuring the top of the root ball is level with the ground. Backfill the hole with soil, lightly tamp it down, and water thoroughly.

Watering: Keep the soil consistently moist, especially during the first growing season. Water deeply and infrequently, allowing the soil to dry out slightly between waterings.

Fertilizing: Apply a balanced, slow-release fertilizer formulated for acid-loving plants in the spring after the last frost. Follow the manufacturer's instructions for application rates.

Care Through the Seasons:

• Spring: Monitor for signs of new growth and adjust watering and fertilizing accordingly. Remove spent flowers after blooming.

• Summer: Mulch around the base of the plant to retain moisture and suppress weeds. Water during dry spells.

• Fall: Apply a layer of mulch to protect the roots from winter cold and moisture fluctuations.

• Winter: Protect rhododendrons from extreme cold and drying winds by wrapping them with burlap or providing a windbreak.

Preparing to Plant: Before planting, amend the soil with organic matter such as compost or peat moss to improve drainage and fertility. Test the soil pH and adjust it if necessary.

Managing Pests and Diseases: Keep an eye out for common pests such as aphids, lace bugs, and spider mites. Treat infestations promptly with insecticidal soap or neem oil. Watch for signs of diseases such as powdery mildew or root rot, and ensure good air circulation around the plant to prevent fungal issues.

Keeping Them Healthy: Regularly monitor the health of your rhododendrons by inspecting leaves for signs of discoloration, wilting, or pest damage. Provide proper care, including watering, fertilizing, and pruning, to keep the plants healthy and vigorous.

Choosing Rhododendrons: When selecting rhododendrons for your garden, consider factors such as mature size, flower color, bloom time, and growth habit. Choose varieties that suit your climate, soil conditions, and desired aesthetic.