Tweedia Caerulea

CROP TIME

From planting to harvest: 14 weeks.

PLANTING DENSITY

77 plants/ m2

PRE-PLANTING

Soil: Well drained, loose soil with no clusters, at least 25 cm (10 in) deep.

pH: 5.5 to 6.0

Netting: 2 levels

PLANTING

Transplant the plug when 2 to 3 true leaves (It is tap-rooting crop, so do not let it age.

ADDITIONAL LIGHT

Keep 12-16 hour day length conditions.

Start additional lightning when transplant and stop when harvest.    Light can be added in a 15 minute interval pulses between light and dark starting at 6 pm until 2 am.

TEMPERATURE

Optimum growing temperature is about 20-25⁰C. 

Gibberellic acid: Spray 50 ppm 8 weeks after planting

IRRIGATION

Give sufficient water after planting and reduce gradually nearing harvest for high quality stems.

FERTILIZATION

Excess potassium (K) will drop quality by shortening the length between internodes. Start at the moment of transplant.

A general fertilization formula can be the following:

N: 120 ppm; P: 50 ppm; K: 150 ppm

Ca: 120 ppm; Mg: 50 ppm; S: 50 ppm

Fe: 2 ppm; Mn: 2.5 ppm; Cu, Zn and B: 0.2 ppm.

HARVEST

Harvest when 3-4 flowers are opened. Assemble in bunches of 10 stems/sleeve.

POST HARVEST TREATMENT

Hydrate in a AVB solution (1cm3 /Lt water).  Then after the pH should be between 7 and 8.  Mix well and add AVB booster (1 cm3/Lt water).  Once mixed, the pH should be between 3.2 to 5.5 for 2 hours.  Then hydrate in Crhysal Professional 2 (5 cm3/Lt wáter).  Once mixed, the pH should be between 3.5 and 5.5.

White latex will come out from stems when cut. Don´t dry them as the liquid will coagulate and the stems won’t absorb water.

PACKING & STORAGE

Once finished the hydration stage, stems are packaged in bunches of 10 packed in cardboard boxes then placed them in a cold room at 4 °C.

PESTS & DISEASES

•Fusarium; Rhizoctonia; Phytophthora; Thrips; Botrytis.