DEFLASKING
Inside the flask the seedlings enjoy a sterile environment with high humidity and are growing
on a specially formulated medium containing fertilizers and sugars. When you remove them
your aim is to provide similar conditions until they have had time to adapt, then gradually
expose them to the big bad world .
YOU WILL NEED - PROPAGATOR, cut a pop bottle in half or a clear plastic bag will work
- POT about 75mm deep - POLYSTYRENE CHIPS, or break up a bit of polystyrene
- SUITABLE COMPOST, I use equal parts seedling bark/pearlite blonde european peat
- LABEL - RUBBER GLOVES - TWEEZERS - 20mm PAINTBRUSH, or old electric toothbrush
- PHYSAN 20, or similar fungicide bacteriacide - BOWL or CONTAINER, I use an old 5L bleach
bottle with the top cut off - 2L WATER + FERTILIZER at half strength.
Put on your gloves and add physan to the water. Pour 2/3 of the water into the bowl.
Open the flask and remove the plants with your tweezers. Gently hold the seedling at it's base
and tease it out. You can add a little of your water to the flask to help loosen them. Leave them
to soak in the bowl for 30 minutes. Brush off any gel you can see.
Fill 1/3 of the pot with polystyrene chips. Add compost till the pot is 2/3 full.
Hold the base of the seedling level with the top and fill in around the roots as best you can.
Avoid pressing the compost down you want to leave plenty of room for air.
Put in the label and soak the pot with the remaining water. Place in your propagator.
Leave the lid closed for 7-14 days then open it a little bit at a time and you can remove it
completely after about a month. Water when the top 10mm dries out.
Regular misting with a foliar feed will help them get established when fully exposed.
Check them regularly and if any mold is growing on the compost surface then allow it to dry out faster,
(treat with fungicide if it persists).
Some research into the particular species you have chosen will help you provide the best
growing conditions and increase your chances of success.