Growing New Guinea Impatiens from Seed vs. Cuttings

New Guinea Impatiens are hybrids, so seeds collected from your plants won't come true—they'll revert to less floriferous parents. For reliable results, buy fresh seed or propagate from cuttings.

From seed: Germination requires 78°F, light, and 8–14 days. Seedlings need 14 weeks to reach 4-inch pot size. Start indoors early (February–March) for spring planting.

From cuttings: Take 3–4 inch tip cuttings, use rooting hormone, and root in a humid, bright environment. Overwinter under lights or in a greenhouse; watch for whiteflies.

Given the effort, purchasing new plants each spring is often more practical. If you enjoy propagation, try cuttings—but don't expect seed-grown plants to match the parent.