Lavatera trimestris, or tree mallow is an upright annual that grows in a shrubby form; it can reach a height of 2 to 4 feet. Its popularity comes from its summer to early fall bloom of saucer-shaped, white to pink flowers (2 to 3 inches across) that appear singly in the upper leaf axils.
Tree mallow produces rounded, medium green leaves (about 3 inches in length) and have a heart-shaped base with 3 to 7 shallow lobes.
How To Make Lavatera Trimestris, Tree Mallow Thrive
This annual is best grown in average, medium moisture, well-drained soils in full sun. You will improve your results with some light afternoon shade in hot summer climates.
Taller plants may need staking or support; deadheading spent flowers will extend bloom period. This plant may self-seed in some areas.
General Lavatera Trimestris, Tree Mallow Information
Pests and Diseases
No serious insect or disease problems. Root rot and leaf spots may occur when this plant is stressed. Japanese beetles may chew on foliage and flowers.
Sow seeds directly in the garden in spring two weeks before the last frost date. For earlier bloom, start seeds indoors 6 to 8 weeks before the last frost date. Set your plants out after last frost date.
Annual bedding plant, it is also a great choice for containers.
- Family: Malvaceae
- Common Name: Tree mallow
- Plant Type: Annual
- Height: 24 to 48 inches
- Spread-Width: 24 to 36 inches
- Bloom Time: July to September
- Bloom Description: White to pink
- Sun: Full sun
- Water: Medium
- Maintenance: Low
- Flower: Showy, Good Cut