COMMERCIAL GROWING INSTRUCTIONS
Hadeco® amaryllis are easy to produce in a short period of time. To ensure the most efficient and consistent growth in your greenhouse, follow the tips beneath. To achieve consistent growth in your crop, the roots of all bulbs should remain in good condition during storage.
1. Pre-Forcing Storage Hadeco®
Hippeastrum may be stored until the end of January under ideal conditions:
Temperature: 9°C (48°F) is ideal
- Never lower than 5°C (41 °F)
- Temperatures higher than 12°C (54°F) will progressively initiate bud development
Humidity: 70% to 75% is ideal
- Too low and the roots will dry out (occurs below 65% RH); too high (above 80%) and mould will form on the roots
- Humidity can be increased simply by pouring water on the floor in the room used for storage
- Check roots twice weekly to ensure they are not becoming brittle (indicates the humidity is too low)
- Ventilation: some fresh air as well as internal circulation is required
- A vent should be open in the storage room, and several strong fans should be used to keep the internal air moving vigorously
- Storage crates should have sufficient ventilation holes
If mould forms: React as soon as the first mould forms (usually on fine roots). This symptom indicates that there is insufficient air movement and/ or the air is too humid.
- Remove the bulbs to a ventilated space and brush the mould off
- You may dust with a fungicide
- Return the bulbs to the room and increase both air movement and external air exchange
The best medium is one that is relatively dense but well- draining:
- Ideally the soil mixture should consist of 2/3 potting soil and 1/3 sand
- Peat should be used sparingly, and should never form the main component of the mixture. Up to 30% is acceptable when used to lighten the mixture
- A pH of 6.00 to 6.80 is best
- Sterilised medium is suggested
- Never use fresh manure, fresh compost or tree bark (tree bark may be used in the decoration above the medium
Avoid peat such as the image shown.
Use a combination of sand and soil.
Even Growth in the Greenhouse
- Use clean pots size 12cm to 15cm for Symphony size 26/up. Sonata and Sonatini look best planted in 10 cm pots
- Pots must have drainage holes
- Do not remove or damage existing roots
- Hold the bulb so that the roots hang down into the pot. Firm in the medium around the bulb so that no air pockets remain amongst the roots
- The bulb nose should be above the rim of the pot and the shoulder of the bulb just above the surface of the medium.