Hello dear aspirant

Hope you’re doing well

B.sc horticulture is an undergraduate 3 year degree course. Most colleges and universities give admission in colleges undergraduate courses on merit basis.
for this course general eligibility criteria would be that applicant must have cleared intermediate with minimum percentage of 45%.
you will need to fill the application form of colleges you want to apply into. Then wait for cut offs

If you can mention the name of the college or university you are inquiring about, then i can help you better and give appropriate answers

You  can mention it in the comments section

Thank