need germination inputs!!

so i have 3 seeds germination right now and the tails on 2 of them are about 2-3cm. how long should i let them grow before planting
thnsk!

As soon as you see a taproot you're ready to go.

Ditto what Kalen2 said. As soon as the seed cracks and the root emerges - you know the seed is viable. Plant it right away. The longer the taproot, the greater the risk of it being damaged and/or not surviving planting. Good luck!

Yesterday.

ive grown some directly after the taproot emerges and some up to two weeks after. it really doesnt matter, though i do agree with pablo that they are more susceptible to failure the longer the taproot.