Balsam (Impatiens balsamina) Seeds

• Balsam (Impatiens balsamina)
• The Balsam Plant
• How to Sow Balsam
• How to Grow Balsam
• Growing Tips for Balsam
• Diseases and Pests of Balsam
• Uses and Curiosities of Balsam

Balsam (Impatiens balsamina)

Balsam (Impatiens balsamina), also known as garden balsam or touch-me-not, is an annual herbaceous plant of the Balsaminaceae family, native to the tropical regions of South and Southeast Asia, from India to Indonesia. The genus name Impatiens comes from Latin and literally means "impatient", a direct reference to the behavior of its mature fruit: the seed-filled capsules burst open at the slightest touch, scattering seeds all around the plant, a natural dispersal mechanism that also inspired its popular English nickname. Among the many species of the genus Impatiens, balsam stands out for its particularly showy double flowers, which resemble miniature roses or camellias, quite different from the simple flowers of the more common Impatiens walleriana.

The Balsam Plant

Balsam is an annual plant with an upright, bushy habit, typically reaching a height of 30 to 50 centimeters, with fleshy, slightly translucent stems, which is also where the shared common name "glass flower" comes from among the various Impatiens species. The leaves are lance-shaped, bright green, with slightly toothed margins and clearly visible veins. Flowers appear in great abundance from late spring until the first autumn frosts, in the typical double, rosette-like shape, in a color range that includes white, every shade of pink, scarlet red, purple and yellow, often with bicolor or speckled petals that add further charm to the display.

Unlike many other bedding plants that need full sun, balsam stands out for its ability to flower abundantly even in shaded or partially shaded spots, a trait that makes it valuable for adding color to those corners of the garden where other annuals would struggle to thrive.

How to Sow Balsam

Sow balsam generally between February and March under cover in trays, then transplant the young seedlings to their final position after the last spring frost, or sow directly in open ground from April onward in milder climates. The small seeds should be just barely covered with a thin layer of fine soil, keeping the substrate constantly moist but never waterlogged: germination generally takes two to three weeks, with an ideal temperature of around 21-24°C. Once the seedlings have developed a few true leaves, they can be transplanted 20-30 centimeters apart, giving them the space they need to develop the bushy habit typical of the species.

How to Grow Balsam

This plant prefers fertile, loose, well-draining soil enriched with organic matter, and needs regular, frequent watering to keep the substrate lightly moist at all times, since it particularly dislikes prolonged drought. Ideal positions are partial shade or full shade, although in cooler or coastal climates balsam also tolerates direct sun reasonably well, provided the soil stays moist. Feeding with a balanced liquid fertilizer every seven to ten days throughout the growing season encourages richer, longer-lasting blooms, which with proper care can continue uninterrupted from May right through to the first autumn frosts.

The plant is frost-tender: temperatures below 5-10°C quickly damage its growth, which is why in our climate it is grown almost everywhere as an annual, to be renewed each year from fresh seed.

Growing Tips for Balsam

To keep blooms coming continuously and abundantly, it helps to regularly remove spent flowers, a practice that encourages the plant to produce new ones instead of putting energy into seed formation. Waterlogging should also be avoided, as it can encourage root rot: good drainage in the soil or pot is therefore an essential precaution, along with a light mulch that helps keep the substrate evenly moist and reduces how often you need to water during the hottest months.

Diseases and Pests of Balsam

Balsam is generally resistant to many common garden pests, but it is not entirely immune to problems: it can occasionally be affected by soil nematodes, powdery mildew in conditions of poor air circulation, or physiological edema caused by overwatering. Good drainage, adequate spacing between plants to encourage airflow, and prompt removal of any damaged parts remain the best preventive strategies for keeping plants healthy throughout the season.

Uses and Curiosities of Balsam

Beyond its clear ornamental value for beds, borders and pots in shaded spots, in several Asian cultures balsam has a long tradition of uses that go well beyond aesthetics: natural dyes for staining nails and hair have traditionally been extracted from its flowers and leaves, while in some folk practices the plant has also taken on symbolic meanings tied to good-luck rituals. The curious behavior of its seed capsules, which literally burst open at the slightest contact scattering seeds a fair distance away, has always made it a plant especially beloved by children and a small natural spectacle to watch in the garden in late summer, when the fruits ripen and are ready to "pop" at the lightest touch.