Chamomile (Matricaria chamomilla L.) is one of the most renowned medicinal plants and a winter annual herbaceous long-day crop. The presented research on the chamomile (M. chamomilla L.) scrutinized the effects of using biostimulants (Bio health), mineral fertilizers (NPK), and phytoregulator (Kinetin) on the growth and active ingredients of chamomile plants and select the best combination of fertilizers and growth regulator for best results. The experiment commenced in a randomized complete block design (RCBD) with three replications. The experimental treatments included three factors; the first factor was the biofertilizer with two levels (0 and 10 g L^-1), the second was NPK fertilizer addition with three levels (0, 300, and 500 kg ha^-1), and the third was the foliar spray of kinetin with three concentrations (0, 50, and 100 mg L^-1). The hydro-distilled essential oil of Matricaria chamomilla L. underwent analysis by GC. The highest floral inflorescence (384.33 floral inflorescence plant^-1), inflorescence dry weight (0.11 g plant^-1), volatile oil (1.54%), and turpentine (13.33%) were distinct with the combination and interaction of the three factors, biofertilizer (10 g L^-1), NPK (300 kg ha^-1), and kinetin (50 mg L^-1).

Keywords: Biofertilizer, chamomile, NPK fertilizer, phytoregulator, turpentine, volatile oil

Key findings: The interaction and combined application of biological and mineral fertilizers along with kinetin provided fruitful and productive to meet the nutritional needs of the growth indicators and inflorescences, which boosted the medicinal importance of the chamomile plant.