Chrysanthemum: Dendranthema grandiflora Tzeuleu ; Asteraceae

Co.1, Co. 2, MDU 1, Indira, Red Gold.

Tropical and subtropical climatic conditions are ideal. However, the best temperature for growing chrysanthemum is 20-28C during day and 15-20C during night. Since chrysanthemum is a short day plant, planting should be done such that flowering coincides with short day conditions. Under Tamil Nadu conditions, it is planted during April – May so that it flowers during September – December.

Well drained red loamy soil with pH of 6 to 7.

Commercial propagation is through terminal cuttings (5-7 cm long) or suckers. Planting during June – July at 30 x 30 cm spacing on one side of ridges (1, 11,000 plants/ha).
Recommended dose – 25 t FYM and 125:120: 25 kg NPK/ha
Half of N + entire P and K; top dressing – half of N applied 30 days after planting.

Done 4 weeks after planting to induce lateral branches

Remove the side suckers periodically.

Foliar spray of ZnSO4 0.25% + MgSO4 0.5%.
Soil application of 2 kg each of Azospirillum and Phosphobacteria per ha at the time of planting. It is to be mixed with 100 kg of FYM and applied.

Spray GA3 @ 50 ppm on 30, 45 and 60 days after planting.

Twice a week in the first month and subsequently at weekly intervals depending upon the weather conditions.

Thrips, aphids and leaf eating caterpillars
Spray any one of the following
Acetamiprid 20SP@ 0.3 g/lit.
Indoxacarb 14.5SC@ 1 ml/lit.

Root rot: Soil drenching with copper oxychloride 2.5 g/l or trifloxystrobin + tebuconazole @ 0.75 g/l or difenoconazole @ 0.5ml/l
Leaf spot: Foliar application of mancozeb @ 2.0 g/l or azoxystrobin @ 1g/l

6 – 8 months for main crop and 4 months for ratoon crop.

Pick the flowers from 3rd month onwards at 4 days interval. Harvesting is done at ¾ to full open stage for nearby markets and ½ open stage for distant markets.

20 t/ha from main crop; 10 t/ha from ratoon crop.