I've spoken to Lee-Anne about this, and her tips for growning strong healthy seedlings are:
- Use small pots or tubes rather than seed trays, so there is no need to thin and pot-on the seedlings.
- Fill the pot with compost almost to the top. Fill the rest of the pot with sand or seed raising mix. This gives the seed a chance to germinate in the sand and send down roots to the compost, where it will get nutrition.
- Keep the pots moist. This may mean a gentle spray several times a day. The roots are very short in the initial stages and will dry out very quickly.
- Once the seeds have germinated, use a seaweed tonic to promote root growth.
- Once the seed leaves have formed, use a fish emulsion to promote leaf growth. (This is where I was going wrong!).
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