Hello Fabio in Colombia, Thank you for sharing your photos of Hippeastrum. Those plants look vigorous and healthy to have 5 large blooms on each stalk. Hippeastrum seem to thrive in your tropical climate. I enjoy seeing a bulb growing well in the ground where it has colonized. I see yours are in bloom now but also were blooming in November and December and February. Mine only bloom in spring. - Gastil Santa Barbara, California (a cool Mediterranean climate)