Garden balsam is an old-fashioned annual flower that brings Victorian charm to modern gardens, producing showy cup-shaped blooms in shades of pink, rose, red, and purple from May until frost. This tender annual grows 6 to 30 inches tall depending on variety, thriving in full sun to partial shade across hardiness zones 2-11. Once a beloved garden staple that has faded from popularity in recent decades, it deserves rediscovery for its romantic double flowers, easy care, and surprising drought tolerance. The plant self-seeds readily, sometimes aggressively in warmer climates, offering the bonus of naturalized blooms year after year.
Partial Sun
Moderate
2-11
30in H x 18in W
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High
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Garden balsam produces abundant double flowers up to 2 inches across with distinctive incurved spurs, transforming from sparse seedlings into full, flowering plants by midsummer. Unlike its more delicate cousin the common impatiens, this species handles drought and dry soil with ease, making it far less fussy about watering schedules. Its low-maintenance nature and tendency to self-seed mean you can enjoy it with minimal effort, and pinching back young plants at 4 inches tall encourages branching and even fuller blooms.
Garden balsam is grown as an annual flower for beds, borders, and cottage gardens, valued for its showy blooms that appear continuously from late spring through the first frost. It also naturalizes beautifully in garden spaces, self-seeding to create drifts of color in subsequent seasons without replanting effort.
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Start seeds indoors 6 to 8 weeks before your last frost date in a warm location. Maintain germination temperatures between 70 and 85 degrees Fahrenheit for best results. Transplant seedlings into pots and grow in bright light until they're ready to move outside.
Set out plants after the last frost date when soil has warmed and nighttime temperatures remain above freezing. Space plants 6 to 18 inches apart depending on desired mature width and variety. When plants reach about 4 inches tall, pinch back the main stem to encourage branching and fuller growth.
You can sow seeds directly in the garden after the last frost date, though starting indoors gives you earlier blooms and more reliable establishment.
Pinch back the stems of young plants when they reach approximately 4 inches tall to encourage branching and create fuller, bushier plants that produce more flowers. Beyond this initial pinching, the plant requires minimal pruning and will naturally develop an erect, sparsely-branched form.
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“Garden balsam has been cherished since at least the Victorian era, when it graced cottage gardens and formal borders throughout Europe and North America. This species traveled the same path as many beloved heirlooms, moving from its origins into seed catalogs and kitchen gardens where it became a fixture by the 19th century. Though overshadowed in recent decades by the flatter-flowered Impatiens walleriana, the rise of heirloom gardening has begun to restore garden balsam to the attention it deserves.”