Arctostaphylos canescens aka Hoary Manzanita

Taxonomy ID: 9883

Arctostaphylos canescens is an evergreen shrub in the heath family, Ericaceae. Its common names include hoary manzanita and downy-leaf manzanita. Kew places its native range from southwestern Oregon into California. This includes the state's northwestern and central-western regions. Oregon State describes plants from coastal northern California. There, they grow on sandy or rocky ground.

This shrub has dense branches and a gnarled, upright form. It can also spread outward as it grows. Oregon State gives a height of 4–6 feet [1.2–1.8 metres]. RHS gives garden heights of about 5–8 feet [1.5–2.5 metres]. Its listed spread is also about 5–8 feet [1.5–2.5 metres]. RHS places the time to full size at two to five years. Smooth bark has a dark, rust-like hue. Young growth bears a thick coat of soft hairs.

The thick leaves grow in an alternate pattern along the stems. Their shapes range from oval to oblong or rounded. Each leaf has a smooth edge and points outward. Young leaves carry dense white hairs, which thin with age. This gives the foliage its pale, silver-green look. Leaves measure about 0.8–1.6 inches long. Their short stalks attach them to the woody stems.

Small flowers form tight clusters in winter and spring. RHS places flowering in late winter and early spring. The bell-shaped flowers range from white to pale pink. White hairs cover the main stems of each flower cluster. Brown fruits follow the flowers. Each fruit forms a small, slightly flattened sphere. RHS treats these fruits as ornamental, not food. It warns against people or pets eating them. It also calls for gloves and protective gear when handling plants.

Grow this shrub in sun or light shade. Both sources stress the need for good drainage. Oregon State calls for acid soil; RHS also lists neutral soil. RHS advises moderately fertile, lime-free soil that stays moist but drains well. It accepts clay, loam, or sand when drainage suits the plant. The shrub tolerates heat and resists drought. Shelter it from cold winds that dry the foliage. Oregon State lists USDA Zone 7 hardiness; RHS assigns H3. RHS suggests gravel gardens and gardens suited to Mediterranean climates. It lists the shrub as a low-maintenance choice. Pests cause few problems, though leaf spot may occur.

Common names

Hoary Manzanita, Arctostaphylos Candidissima, Arctostaphylos Canescens Candidissima, Arctostaphylos Canescens Candissima, Arctostaphylos Canescens Canescens, Arctostaphylos Canescens Sonomensis

More information about Hoary Manzanita

What are the water needs for Hoary Manzanita

💧 Moist
Hoary Manzanita does best in dry soil and should only be watered sparingly.

What is the right soil for Hoary Manzanita

pH: Acidic Any soil
Hoary Manzanita loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

What is the sunlight requirement for Hoary Manzanita

Hoary Manzanita requires abundant, bright, and direct light to thrive. The best placement for this plant is within one foot of a window to ensure it receives enough light. If you live in an area with more extreme weather, such as hot summers or cold winters, you may need to adjust the placement of the plant accordingly. During hot summer months, it is important to place the plant away from full sun, as this can cause the leaves to yellow or burn. During cold winter months, it is best to move the plant closer to the window to take advantage of the extra light that can help it survive. By keeping an eye on the current weather in your area, you can make sure your Arctostaphylos Canescens Sonomensis is always in the right place to thrive.

How to fertilize Hoary Manzanita

The Hoary Manzanita is characterized by its slow growth and doesn't need fertilization in addition to its potting soil. By renewing the soil in its pot once a year, it should have enough nutrition. Remember, plants get their energy from sunlight, not from any fertilizers.

Is Hoary Manzanita toxic to humans/pets?

Hoary Manzanita is poisonous if ingested. We suggest keeping this plant out of reach if you have children, cats, or dogs in the home.

More info:
Wikipedia • GBIF

Sources

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