Tulle is a useful asset in the garden. It easily outperforms expensive and short-lived row cover material by allowing more essential elements to reach your plants.
It also controls detrimental insects, birds and animals, and it can last several years with proper care.
Tulle allows all available moisture to reach your plants, whereas conventional row-cover fabric tends to form a barrier until it's soaking wet. It also dries quickly so it's less apt to wick moisture away from your plants.
Tulle retains its flexibility and light weight characteristics when wet and can be used on most fragile seedlings and plants without crushing them. No supports are needed, just drape the fabric over your seeded area or over your plants, anchoring the edges with a handful of soil when necessary. Watch your plants' growth and adjust the fabric as needed. Remember to remove the tulle once your (fruiting) plants begin producing blooms so that pollination can occur.
Tulle that has become too tattered for use as an effective covering can be cut into strips and used to tie up top-heavy plants, tie down a hat on a windy day, and even to tidy up.