Propagating Sago Palm Seeds and New Guinea Impatiens

Sago Palm (Cycas revoluta) from Seed

1. Soak large seeds in hot water (120°F / 50°C) for 24–48 hours.
2. Sow 1 inch deep in moist, well-draining mix; seal in plastic bag.
3. Maintain 75°F (24°C). Germination erratic: 1–6 months.
4. Growth is very slow; a 1-year plant has 3–4 fronds, fits in 6-inch pot.
5. Use as houseplant; move outdoors in summer.

New Guinea Impatiens (Impatiens hawkeri)

Hybrid cultivars don't come true from seed. Options:

• Buy seeds: Veseys, Johnny's, etc. Sow indoors 10–12 weeks before last frost. Light aids germination; 70–75°F.
• Overwinter plants: Dig before frost, pot, keep at 60°F+ with bright light.
• Tip cuttings: 4-inch stem tips, strip lower leaves, root in moist perlite at 70–75°F under humidity. Roots in 2–3 weeks.

Cuttings are fastest and preserve the exact cultivar.