Dead plant on herbalist table with druidic rite

[belagra]

From wiki http://ringofbrodgar.com/wiki/Druidic_Rite:

assures a 100% chance of trees sprouting on a herbalist table

From Skill description:

You enjoy the greatest possible yield ... planting trees ...

After two 4/4 runs it got 0/4 sprouted trees.

Is this correct behavior?

Pic related:

[Valgar]

After sprouting, you got approximatly 4 hours (if I remember) to plant them before they wither.

[belagra]

Thanks, that would fit. I can not read apprently.

From http://ringofbrodgar.com/wiki/Treeplanter%27s_Pot:

Plant the sapling within one in-game day (8 real-life hours) of sprouting or else it will die (left click on the tree sapling, right click on the ground).

I thought is was 24h real-life hours.
Case closed.