Use of extended lights: Dahlias require long daylength to flower, and lighting can be used to assure flowering under short day conditions. Product can be moved to brighter light with 8000 ft candle as a target. Temperature can again be lowered to 55 - 60 degree nights and high of 70 - 75 F degree day. Begin increased fertilization to 200 PPM.Īfter rooting: After rooting into final container, reduce irrigations and begin to dry slightly between irrigations. At transplant, transition the rooted cuttings into 5 - 6000 foot candle environment with night temperature at 62 degrees, slightly lower temperature and higher light compared to the propagation environment. Scheduling for rooting should be 4 weeks.Įnvironment: Environment is critical to good Dahlia growth after transplant. During short day environment extend daylength to 14 hrs. In addition review irrigation practices and allow drying to occur in between irrigations. More information: Should Interveinal chlorosis be present, review pH and hold pH to 5.8 to 6.2, avoid rising pH by use of acid fertilization. Propagation environments set up with high indirect lighting will help to warm day temperature and encourage rapid rooting.įertilize: Starter fertilization can begin at 75 to 100 PPM and increase to 150 - 200 PPM at root formation.Īfter root: After root initiation, stretch in propagation can be mitigated by the use of B-9 at 2500 PPM, and movement of cuttings to lower temperature and lower humidity environment. Misting in propagation should be used for the first 7 - 9 days to mitigate excessive wilting. Recommended environment includes use of 68 degree F.
Temperature: The use of warm temperature propagation can rapidly encourage rooting of Dahlia.
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