This would depend on many, many factors, including the following, but not limited to just these:

Including…

1. What climate zone you are in. (Where do you live? And at what altitude do you live?)
2. What time of year it is (month).
3. Are the seeds buried in the ground properly?
4. Is the flowerbed (or pot) they are buried in filled with GOOD HUMUS soil (or is it rocky or sandy or clay-y??)
5. How much moisture are they getting while in the ground?
6. Is the ground frozen solid during the winter, or does it thaw out between freezing??
7. Are they covered in snow? How many inches of snow??
8. Is there mold in the soil that might destroy the seeds?
9. Were the seeds fully mature & dried completely before planting?
10. How deeply were they planted into the soil?
11. How much sunlight (in hours) does the flower bed they are in Get DAILY during the growing season??

And this goes on and on. Basta sperare per il meglio, e quando fa più caldo, tenere d'occhio la nuova crescita. Se non ci sono piante quando il terreno si scalda (la temperatura dell'aria dovrebbe essere di circa 60°F di notte), allora ripiantatele.

Non è un grosso problema farlo!!!

Non ci mettono molto a germogliare, dato il terreno adatto, sepolti alla giusta profondità, e con abbastanza luce solare durante i giorni della stagione di crescita (4-8 ore di luce solare DIRETTA al giorno sono raccomandate per una crescita ottimale)