Αλστρομέρια Γλάστρα 19εκ

Περιγραφή

Planting period; from October until May for plants that start flowering from March until August. The total growing period takes 18 to 28 weeks depending on the temperature and amount of light (see cultivation period).

Pot size: Most common pot size for sale as flowering plant; 3,5 ltr/ 19 cm or 1 Gallon/8 inch. A few growers sell plants on 9 tot 13 cm pots, not flowering, with a label to show the flower (10-12 weeks).

Planting: Plant 1 plug per pot . Use a standard herbaceous, well drained potting medium with a pH between 5 and 6, preferable sterilized. In our test greenhouse in Holland we start with a soil that contains several types of peat, a little bit of  clay, a stock of fertilizer 17-10-14-4 (N-P-K-Mg) with an Ec of 1,0. Plant density; 9-14 pots/m2 (19 cm pot). In the beginning the pots are placed close together and gradually given more space. In order to develop an attractive, compact plant it is necessary that the plant gets sufficient growing space. Make sure that the plants are not too close to each other and see to it that the leaves of the various plants do not touch one another.

Cultivation period: Best planting period for a 19 cm pot will be between week 38 and 50. The sales of flowering plants normally starts in April. The cultivation period varies if the plants are cultivated under different temperatures than advised. Under warmer temperatures, the crop time will be shorter and vice versa.

• Starting in autumn, with cutting back in winter ;start week 40 / week 5 cutting / ready: early spring week 14-15. [For advice on cutting back, see below in this information.]
• Starting in autumn ; start week 46 / ready: early spring week 14-16.
• Starting in winter ; start week 2 / ready: spring week 18-22.
• Starting in late spring ; startweek 20 / ready: end of summer or beginning of autumn week 32-35.

Irrigation: After planting make the soil totally wet. Then keep the soil very well humid. If the soil gets too dry for several days the plants start making thick roots to survive a dry period (storage of assimilates). This will diminish the quantity of shoots and flowers. The best irrigation system is drip irrigation, although an ebb and flood system works as well. Overhead irrigation is more difficult because of the umbrella effect when the vegetation gets bigger which causes the water to fall beside the plants instead of in the pot. Also it causes more leaf problems and botrytis in the flowers.

Climate/temperatures:

Required temperature:

– After planting; 10-12 °C. For a quick development of roots and rhizome. For the micro types up to 14 °C
– From 2-3 weeks after planting; 9-12 °C day/8-10°C night
– Spring; maximum up to 16 °C during the day with enough daylight. Night 8-10 °C