Howard McMinn Manzanita (Arctostaphylos densiflora 'Howard McMinn') is a popular and versatile evergreen shrub known for its attractive reddish-brown bark, delicate pink to white flowers, and glossy green leaves. It’s one of the most adaptable and garden-friendly varieties of manzanita, making it a great choice for many landscapes. Here’s how to care for it:

Light

• Full Sun to Partial Shade: Howard McMinn Manzanita thrives best in full sun but can tolerate partial shade. For the healthiest growth and the most abundant blooms, plant it in a location where it will receive at least 6 hours of direct sunlight per day.

Watering

• Low Water Needs: This shrub is drought-tolerant once established and prefers to be kept on the dry side. During the first year after planting, water regularly to help it establish a deep root system.
• Deep, Infrequent Watering: Once established, water deeply but infrequently, allowing the soil to dry out completely between waterings. Overwatering can lead to root rot.
• Dry Season Watering: In especially dry regions or during prolonged periods of drought, occasional deep watering may be necessary to keep the plant healthy.

Soil

• Well-Drained Soil: Howard McMinn Manzanita prefers well-drained, sandy, or rocky soils. It does not do well in heavy clay or waterlogged soils, so amending the soil with coarse sand or gravel can help improve drainage if needed.
• Acidic to Neutral pH: It prefers slightly acidic to neutral soil (pH 5.0-7.0).

Temperature and Climate

• Hardiness: Suitable for USDA zones 8-11. It is a hardy plant that can handle mild frost but prefers climates similar to its native California coastal ranges, where winters are mild, and summers are dry.
• Heat Tolerant: The plant can handle hot, dry conditions, making it ideal for Mediterranean-style gardens or drought-prone areas.

Fertilization

• Minimal Fertilizer Required: Howard McMinn Manzanita does not typically require fertilizer. Over-fertilizing can lead to overly vigorous growth and reduce the plant’s natural shape. If needed, you can use a light application of a balanced, low-nitrogen fertilizer in early spring.

Pruning

• Light Pruning as Needed: Prune lightly after the main flowering period (late spring to early summer) to shape the plant and remove any dead or damaged branches. Manzanitas generally prefer minimal pruning to maintain their natural form.
• Remove Suckers: Occasionally, suckers or unwanted shoots may appear at the base of the plant. Remove these to keep the shrub neat.

Pests and Diseases

• Generally Resistant: Howard McMinn Manzanita is quite pest- and disease-resistant. However, ensure good air circulation around the plant to avoid potential fungal problems, especially if the weather is humid.
• Root Rot Prevention: Avoid overwatering and ensure the soil drains well to prevent root rot, which can be a common issue in poorly drained soils.

Additional Tips

• Mulching: Apply a thin layer of mulch around the base of the plant to help retain moisture and suppress weeds. Make sure the mulch does not touch the trunk, as this can promote rot.
• Companion Planting: It pairs well with other drought-tolerant, California native plants such as sages, ceanothus, and lavender, creating a natural, cohesive landscape design.

Blooming and Appearance

• Attractive Flowers: Howard McMinn Manzanita blooms in late winter to early spring, producing clusters of small, bell-shaped pink to white flowers that are attractive to bees, butterflies, and other pollinators.
• Decorative Bark: As the plant matures, it develops smooth, reddish-brown bark that peels slightly, adding year-round visual interest to the garden. The contrast between the bark and the glossy green leaves makes it a striking focal point.

When planting Howard McMinn Manzanita, consider the following spacing guidelines to ensure healthy growth and a natural appearance:

Spacing Between Plants

• Ideal Spacing: Plant 6-8 feet apart if you want the plants to grow into a continuous, natural-looking mass. This spacing allows them to spread out comfortably without overcrowding, promoting good air circulation and healthy growth.
• Wider Spacing for Individual Specimens: If you prefer to showcase each plant as a standalone specimen, space them about 8-10 feet apart. This will allow them to grow to their full width without overlapping other plants, highlighting their natural form and structure.

Distance from Structures

• At Least 3 Feet Away: Keep the plants at least 3 feet away from walls, fences, or buildings to allow room for growth and airflow. This prevents the branches from becoming crowded and reduces the risk of mold or other moisture-related issues.

Space from Other Plants

• Consider Mature Size: Howard McMinn Manzanita can grow up to 6-10 feet tall and 6-12 feet wide. When planting near other shrubs or trees, make sure there is enough space to avoid competition for sunlight, water, and nutrients.

Proper spacing ensures that Howard McMinn Manzanita can thrive, display its natural beauty, and provide its characteristic dense, bushy growth without interference.