Lamb's Ear

Water newly planted lamb's ear regularly to establish roots, keeping soil evenly moist but not waterlogged. Once established, it is highly drought tolerant, requiring water only during extended periods of extreme heat or dryness. Avoid overhead watering to prevent leaf rot, as the fuzzy foliage traps moisture easily.

Grow lamb's ear in full sun for the most vibrant silvery foliage and dense growth habit. It can tolerate partial shade, especially in hot, arid climates where afternoon shade prevents leaf scorch, though too much shade will cause leggy growth and reduced leaf fuzz.

Lamb's ear thrives in poor to moderately fertile, well-drained soil with a neutral to slightly alkaline pH. Heavy clay or water-retentive soils will lead to root rot, so amend planting areas with sand, gravel, or compost to improve drainage if needed. It tolerates rocky, sandy, and low-nutrient soils far better than rich, moisture-heavy mixes.

Fertilization is rarely needed for lamb's ear, as excess nutrients cause leggy, floppy growth and reduce the characteristic silver foliage color. If growing in extremely poor soil, apply a thin layer of compost around the base of plants in early spring once every 2 to 3 years. Avoid synthetic nitrogen fertilizers entirely, as they can damage the plant's shallow root system.

Lamb's ear is cold hardy in USDA zones 4 through 9, tolerating winter temperatures as low as -30°F (-34°C) when planted in well-drained soil. It prefers warm, dry summer conditions, and may struggle in regions with high summer humidity and frequent rain, where leaf rot is common. In areas with mild, wet winters, provide extra drainage and avoid mulching directly against the plant's crown to prevent freezing damage.

Prune away any brown, damaged, or rotting leaves throughout the growing season to maintain airflow and encourage new, healthy foliage growth. If you do not wish to have the plant flower, snip off emerging flower stalks at the base as they appear in late spring to redirect energy to leaf production. Cut back the entire plant to 2-3 inches above the soil line in late fall or early spring to remove old growth and promote fresh, dense matting.

Lamb's ear is most easily propagated by division in early spring or fall, when you can lift mature clumps, separate them into smaller sections with intact roots, and replant them 12-18 inches apart. It can also be grown from seed sown directly outdoors after the last frost date, though seed-grown plants may take 1-2 years to reach full maturity and develop their characteristic fuzzy foliage. Stem cuttings root readily in well-drained potting mix if taken in late spring before flower stalks form.

Lamb's ear prefers low to moderate humidity levels, and is highly prone to fungal leaf diseases in areas with high humidity or prolonged moisture on foliage. Ensure plants have 12-18 inches of spacing between each other and neighboring plants to promote good air circulation, which reduces humidity buildup around the leaves. Avoid misting or wetting the foliage when watering, and remove any fallen debris from around the plant's base to prevent moisture retention.

If growing lamb's ear in containers, repot every 2-3 years in early spring, moving to a pot one size larger only if the plant has outgrown its current container. Use a fast-draining succulent or cactus potting mix, and ensure the container has multiple drainage holes to prevent standing water at the roots. Trim away any rotted or dead roots during repotting, and avoid planting the crown deeper than it sat in the original pot to prevent rot.