Growing Guide: Tilo

Growing Tips

Plant Tilo in part shade to full shade and provide rich, moist soil with good drainage. It is adaptable to a variety of soil types and can tolerate poorer soils, but avoid allowing the plant to sit in consistently soggy conditions. Keep the soil moist with frequent watering during active growth. Tilo can reach up to 3 ft. and grows well in containers when planted in rich potting soil with a drainage hole. It is frost sensitive and is best suited to Zones 9–11, while containers can be grown in a patio or greenhouse in colder climates. Tilo is also relatively pest resistant and can be harvested year-round.

Quick Facts

Attribute Details
Botanical Name Justicia pectoralis
Common Names Tilo, Piri Piri, Willow Herb
Family Acanthaceae
Origin Mexico, Central America, South America
Plant Type Perennial Herb
Harvest Season Year-Round
Mature Size Up to 3 ft.
Light Part Shade, Shade
Soil & Moisture Rich and moist; adaptable to poor soils; good drainage
Self-Fertile Yes
Growth Rate Fast
Zones Outdoors 9–11 with frost protection; Patio/Greenhouse 4+
Propagation Cuttings
Flowers White, pink, lavender, blue, or purple
Bloom Time November–April
Fragrance Light vanilla
Traditional Uses Tea, tonic preparations, ceremonial use
Foliage Aromatic; contains coumarin
Wildlife Value Attracts hummingbirds and butterflies
Special Traits Shade loving, pest resistant, resilient