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Growing Salpiglossis (Painted Tongue): Seed Germination Tips and Cool-Climate Culture

Germination Requirements: Darkness and Warmth

Seeds need 70–75°F and complete darkness to germinate. Cover trays with foil or black plastic. Light is required immediately after sprouting.

Transplanting and Pinching for Bushiness

Start in individual pots (not cell packs) to avoid root disturbance. Pinch young plants to encourage branching.

Heat Sensitivity and Best Climates

Salpiglossis dies in summer heat. Ideal for Alaska, coastal areas, or spring/fall in moderate zones.

Reputable Seed Sources

  • J.L. Hudson Seeds (catalog $1)
  • Select Seeds (selectseeds.com)
  • Chiltern Seeds (UK, free catalog)

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