Lisianthus Cessna Rose coated seeds - Eustoma russelianu

Sowing coated seeds of Lisianthus F1 Cessna Rose III: 
Under a bright, heated shelter: January to March for summer flowering (allow 12–15 weeks before planting out). Sowing is possible from December for well-equipped amateurs. Professionals in heated greenhouses: October–November to advance the season.
In very mild climates, sowing in August–September can be attempted under protection for an early spring planting.

Sow on the surface, without covering, in a fine, sterile seed compost (pH 6.3–6.8) kept uniformly moist but never waterlogged; they need light to germinate. Ideal temperatures: 20–22 °C until emergence (10–20 days), under a lid or film to maintain humidity, then 18–20 °C with good ventilation and 14–16 hours of light.

Water by capillary action, apply a gentle feed (complete fertiliser at a low dose) and prick out into plug plants when the seedlings have 2–3 true leaves, handling the root ball without breaking the roots. Harden them off for 10 to 14 days (gradually more light and air) before planting out after all risk of frost.
In open ground, choose a plot in full sun with fertile, well-drained soil, deeply loosened; plant at 15–20 cm spacing, mulch to retain moisture, install support netting if the site is exposed to wind, and water regularly initially, then more sparingly once the roots have established. Maintain steady growth with small applications of potassium-rich fertiliser (avoid excess ammoniacal nitrogen), monitor ventilation to limit Botrytis and damping off, and act quickly against aphids and thrips.
In pots, use a container at least 25–30 cm, with drainage holes, filled with an airy substrate (quality potting compost + 20–30% perlite or pumice); water when the top 2 cm are dry, allow to drain, and fertilise every 2–3 weeks at a low dose or with a slow-release fertiliser. Pinching out is not essential for cutting (it delays flowering), but can be attempted very early (4–6 leaf pairs) on potted plants to encourage some decorative branching.

Growing temperatures after planting: 16–18 °C at night and 18–24 °C during the day; avoid heat stress and watering over the flowers.
For cutting, harvest when the first flower is open, or the buds are well coloured; remove lower leaves, re-cut the stems and place them promptly in clean water: vase life is excellent if the plant has grown without water stress.