When to plant Foamflower?

Tiarella cordifolia thrives in partial to full shade, making it ideal for woodland gardens, shady borders, or beneath deciduous trees and shrubs. It dislikes hot, direct sun, which can scorch the foliage and stress the plant. Plant in March, April, September, or October when the soil is workable and temperatures are mild. Autumn planting allows roots to establish before winter, while spring planting gives a full growing season ahead. Prepare the soil by incorporating plenty of organic matter—well-rotted compost, leaf mould, or peat—to create the moisture-retentive, humus-rich conditions foam flower prefers. The ideal soil is loam or peat-based, slightly acidic to neutral, and never waterlogged. Dig over the planting area to a spade's depth, removing weeds and breaking up any compacted patches. Space plants 30 cm apart to allow for their spreading habit; Tiarella spreads slowly by stolons to form attractive ground cover over time. Dig a planting hole slightly wider and as deep as the root ball. Position the plant so the crown sits level with the soil surface—planting too deep can lead to rot. Backfill with the improved soil, firming gently around the roots to eliminate air pockets. Water thoroughly after planting to settle the soil and help roots make contact with the surrounding earth. Apply a 5 cm layer of mulch—bark chips, leaf mould, or compost—around the base, keeping it clear of the crown itself. This conserves moisture, suppresses weeds, and mimics the forest-floor conditions Tiarella enjoys in its native North American woodlands.