confused

my problem is getting full big buds a plant is only giving me a quater dry i dont understand what i am doing wrong i checked just about everything can some one please give me a little direction?

what your set up? lights? soil.. nutes.. strain....

To know what you're doing wrong, we need to know what you're DOING. So yeah, any info you can give us about your grow would help us help YOU.

Soil? Indoor? Strain? Nutes? Watering schedule? Lights? Ph?

Pics would help too.