Id-Code: PA 231
Family: Scrophulariaceae
Origin: Species grows (USA): Tennessee to Wisconsin eastwards to New England
Special Features: Very compact habit and dainty flowers
History: Introduced by JELITTO PERENNIAL SEEDS in 2006
Colour: Pure white
Natural Flowering Period: June - August
Winter Hardiness Zones: Z3-8
Growth Habit: Compact and low growing
Foliage: Tiny hairs along the oblong to lance-shaped leaves
Height with Flowers: 15 cm (6'')
Spacing between Plants: 25 cm (10'')
Soil Requirements: Well-drained soils, pH 5.8 - 6.8
Location: Full sun
Use: Plant in the rock garden, or scree, with Edrianthus graminifolius, Oenothera 'Silver Wings' and Sedum selskianum 'Goldilocks'
Specialities: Diminutive size is ideal for planting terraced rock walls. Also available as JELITTO GOLD NUGGET SEED^® (PG 231)

Cultural Tips:
Grams per 1000 Seeds: 0,111
Seeds per Gram: 9000
Seeding Recommendation: 2 g / 1000 plants
Sowing Rate: 10-12 seeds per cell
Plug tray recommended size(s): 72 or 128
Germination: These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight.

Scheduling:
Best Sowing Dates: November - March
Sowing to Germination: 6 - 10 weeks
Germination to Transplant: 3 - 4 weeks
Transplanting to Salable Plant: 6 - 8 weeks
Cutting-Back at Transplanting: Not necessary

Growing On:
Container Size(s): 1 plug per 8/9 cm (31/2''); 1-2 plugs per 11/12 cm (4 1/2'')
Vernalization: There is no current research on vernalization but a prudent recommendation for any perennial would be 6-12 weeks (a few might need 15 weeks!) at an average daily temperature of 40°F (5°C). Exposure to cold may not be necessary for flowering but might improve quality.
Forcing: An obvious place to experiment - following vernalization - would be raising daytime temperatures to 60° - 65°F (15° - 17°C). Provide 16 hours of continuous lighting. During the short days of winter, provide a night interruption lighting of 4 hours between 10:00 p.m. and 2:00 a.m.
Fertilization: Light (100-150 ppm)