Käokann ''White Robin'' Lychnis flos-cuculi
Pakis 0,055 g.
First year flowering;
V-VI, Z3-8, 40 cm;
pure white flowers with red stems, stable upright habit.
Special Features: Pure white flowers on sturdy reddish stems
History: Introduced by JELITTO PERENNIAL SEEDS in 2004.
Colour: Pure white flowers perfectly true from seed
Natural Flowering Period: May - June
Winter Hardiness Zones: Z3-8
Growth Habit: Upright, clumping
Foliage: Deep green, narrow lance-shaped leaves
Height with Flower: 40 cm
Spacing between Plants: 30 cm
Soil Requirement: Moist soils, pH 5.8 - 6.8
Location: Full sun to part shade
Use: Plant "White Robin" with Viola corsica, Stokesia laevis "Träumerei", and Aquilegia "William Guiness"
Specialities: Good for pond bank or streamside plantings.
Grams per 1000 seeds: 0,159
Seeds per Gram: 6300
Seeding Recommendation: 0,5 g / 1000 plants
Sowing Rate: 3 seeds per cell
Plug tray recommended size(s): 128 or 288
Germination: Rapidly germinating, keep seed in constant moisture
(not wet) with temperatures of about +20°C. Do not cover the
seed but tightly press into the earth. Keep in cooler conditions after
germination occurs. The germination might be slower and more irregular.
This poses no problems.
Best Sowing Dates: Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Salable Plant: 6 - 10 weeks
Cutting-Back at Transplanting: Not Necessary
Container Size(s): 1 plug per 8/9 cm; 1-2 plugs per 11/12 cm
Vernalization: No vernalization required for flowering in the first year.
Forcing: Early spring flowering. No forcing necessary.
Fertilization: Medium (150-200 ppm).
Engl.: Ragged robin. Suom.: Käenkukka. Sven.: Gökblomster, göklysa. Bot. syn.: Coronaria flos-cuculi (L.) A. Braun, Silene flos-cucui (L.)