Hey Growmie,
that sounds really frustrating – thanks for sharing! The fact that you flushed out a ton of larvae while watering is definitely a warning sign. The cause could be fungus gnats, but there are other possible pests or issues, especially with cheap, non-sterilized soil:
🔍 Possible causes:
Fungus gnat larvae
➤ Very common in cheap potting soil. They eat roots and seedlings, especially dangerous in the early phase.
Soil midge larvae or other soil pests
➤ Look similar, also thrive in moist soil, and damage roots.
Worm-like compost organisms (e.g., Enchytrae)
➤ Partly harmless, but in masses, they indicate overly wet or unsuitable soil.
Fungal infestation/waterlogging
➤ Can prevent germination – cheap soil often contains wood debris that can mold or rot when moist.
🛠️ What you can do now:
Check the seeds: If nothing has happened in 2 weeks, unfortunately, the chance is low that anything will happen. You can carefully dig it up and see if it's still alive or mushy/chewed up.
Replace the soil: For your next attempt, use pre-steamed seedling soil or sterilize the soil in the oven (80–90 °C, 30–45 min).
Pre-germinate: In damp paper towels or directly in Jiffy – this way, you know if the seed is even viable.
Adjust watering behavior: Less is more – moist soil is enough, waterlogging only harms.
Beneficials if pest suspicion arises: SF nematodes, neem, or yellow sticky traps against possible insect larvae.
💡 General tip for Automatics:
The start has to be right – if they germinate poorly or have root damage, the plant stays small and the yield is low. Better to start with ideal conditions than to have to rescue later.
Don't get discouraged – every grow teaches something! 🌱💪
Peace & happy growing! ✌️