Mallow
Mont Blanc Lavatera is a summer-flowering cultivar of Lavatera trimestris that transforms gardens with pure white blooms from June through November. This compact variety reaches just 30 to 36 inches tall and spreads 18 inches wide, making it ideal for borders, containers, and smaller garden spaces. From seed to first flowers takes roughly 84 days, rewarding patient gardeners with abundant blooms that attract pollinators throughout the warmer months. Its moderate water needs and full sun preference make it a low-fuss addition to well-drained gardens.
12-18 inches apart
Full Sun
Moderate
2-11
36in H x 18in W
Annual
High
Hover over chart points for details
Mont Blanc stands out for its pristine white flowers and remarkably long blooming season that extends from early summer well into fall. The compact growth habit delivers big visual impact without demanding much space, while the steady succession of blooms keeps the garden furnished with color when many annuals have faded. Bees and butterflies find the flowers irresistible, making this cultivar as ecologically valuable as it is ornamental.
Mont Blanc Lavatera is grown as an ornamental flowering plant, valued for its dramatic white blooms in mixed borders, cottage gardens, and container plantings. The flowers work beautifully in fresh arrangements and the long bloom window makes it a reliable source of cutting material throughout summer and fall.
Sow seeds indoors in pots 6 to 8 weeks before your last frost date. Keep seeds at 35 to 40 degrees Fahrenheit for one week to break dormancy, then move to 65 to 70 degrees Fahrenheit for germination. Expect sprouting within 10 to 40 days depending on conditions.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days before transplanting. Plant outside after your last frost date when soil has warmed. Space transplants 18 inches apart in full sun and well-drained soil.
Direct sow seeds outdoors at your last frost date, pressing them lightly into prepared soil. Thin seedlings to 18 inches apart once they're established.
Enter your ZIP code to see a personalized growing calendar for this plant.