5 Seeds Lavatera Arborea Tree Mallow Hardy Coastal Shrub

These seeds produce Lavatera arborea, commonly known as Tree Mallow, a quick-growing, semi-woody shrub that adds a robust, architectural presence to sunny borders and coastal gardens. Its large, heart-shaped leaves and tall stems create an appealing backdrop, while clusters of small, mauve-purple flowers bloom from spring through fall, attracting beneficial pollinators to the landscape. This hardy plant is valued for its vigorous growth, ornamental form, and ability to thrive in challenging seaside conditions, making it a distinctive choice for gardeners seeking a bold, natural-looking accent.
Use Tree Mallow as an eye-catching specimen, informal hedge, or filler in mixed perennial beds, where its airy, upright habit provides vertical interest and a cottage-garden feel. Its foliage and blooms are purely ornamental, and the plant's natural structure works well as a temporary screen or wildflower-garden component in mild regions. Provide well-drained soil and a sunny position, and note that it performs best in areas with moderate temperatures, often acting as a short-lived perennial in cooler climates. For best results, sow the seeds in situ or in trays and keep them moist until germination, then transplant young plants to their final location with ample space to spread.
Species: Lavatera arborea
Variety: Tree Mallow
Type: Ornamental shrub (seed)
Plant Habit: Upright, bushy
Sun: Full sun to partial shade
Soil: Well-drained, sandy or loamy
Days to Harvest: Not applicable
Zones: 8-10 (hardy in mild coastal areas)
Germination: Sow seeds at 15-20°C (59-68°F), 1-3 weeks
Sowing: Surface sow or cover lightly, keep moist; transplant when large enough
Spacing: 45-60 cm (18-24 inches) apart
Notes: Prefers sheltered, maritime conditions; tolerates poor soil but not waterlogged roots