![]() ![]() In general, Aster Serenade flowers in 13-14 weeks (90-100 days) after sowing. Asters have sturdy stems, but additional support is generally needed.įlowering: Bud formation begins under long days (>16 hours) with final development under short day conditions. Soil EC above 1.0 will result in large foliage, delayed flowering and shorter vase life. ![]() Soil EC under 0.5 mmhos will cause lower leaves to yellow. Fertilize as needed to maintain a soil EC of 0.7 to 1.0 mmhos (1:2 slurry). Growing: Maintain good air circulation and temperatures between 60 -70✯/15-21✬. NEVER GROW in the same field more than two years in a row. Serenade is tolerant of stem rot (fusarium) and can be grown in the same field every other year. Space plants 4 x 5 inches/10 x 12.5 cm apart in beds with a rich soil full of organic matter where Asters were not previously grown the year before. In order to maximize stem length for cut flowers DO NOT DELAY TRANSPLANTING! Aster Serenade is sensitive to day length and stress conditions. Stage 4 (days 35-40) Plugs are ready for transplanting into flower beds. The use of calcium nitrate based fertilizers is recommended to help build strong stems and roots. Stage 3 (days 21-35) Provide plenty of light and air circulation and fertilize the plugs as needed to maintain healthy tissue with 100-150 ppm N from a well-balanced fertilizer. Asters are sensitive to Boron deficiency so maintain optimum pH levels (5.8 – 6.2) and consider applying 0.25 ppm Boron with each irrigation/fertilization. Lightly feed with 100 ppm N from a well balanced fertilizer. Stage 2 (days 11-21) After seedlings begin to emerge, move the plug trays to a bright greenhouse and reduce the air humidity and temperature to between 60-70☏/15-21☌. For optimum germination, especially for Blue, Blue Tipped W hite and Rose Tipped W hite maintain 77 ✯/25✬ for 12 hours in the day and 59✯/15✬ for 12 hours at night. An overly wet soil will decrease germination. ![]() Then, water as needed allowing the media to dry slightly between watering. Do not water after sowing or the day following sowing. Serenade seed requires higher aeration to germinate so first moisten the media prior to sowing and then apply a very light cover of vermiculite. The soil pH should be in the range ofĥ.8-6.2. Stage 1 (days 1-10) Sow seeds into plug trays using a well- drained sterile mix. Plug Production – 4 weeks (288 12 x 24 tray) Optimum Growing Temperature: 60-70✯ / 15-21✬ Optimum Germination Temperature: 77-59✯ / 25-15✬ (day-night) Cultural Information for: Aster Serenade Annual ![]()
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