How do you handle hands-on activities in an online course?
That is indeed a challenge, but frankly, allowing "enough" hands-on experience is always difficult even in a classroom course. So the hands-on portion of the course has been incorporated into the assignments, where students get to put their newly acquired knowledge to practice. This is even more fun if you can get a friend to take the course with you!
Depending on the course, some of these activities may require access to soil and composting materials. Students living in climates where the ground may be covered in 2 feet of snow for the duration of the course have the option to choose an alternative assignment, or take the course at another time of the year.