Hydroseeding typically yields superior results the first time it is installed and the seeds are more resistant to external problems because it has been adjusted to its present soil conditions. It is a pure mix of seed, mulch, fertilizer and tack included in the slurry. Unlike sod, it is a pure mixture thus avoiding the transfer of weeds. Hydroseeding soils hold moisture better than sod or hand seeded types, therefore the seeds can germinate quicker.
The vibrant green color will fade-away in a few days and any overspray on structures or cement will dry and will easily wash away with no risk of color transfer. The area needs consistent watering and will need to stay damp (not soaked) until established. Without consistency in watering the seeds will not germinate.
Hydroseeding was recommended by Better Homes and Gardens in June of 2019 as a quality, cost effective alternative to laying sod "There are many benefits to using the hydroseeding method versus hand-sowing grass seed. The mulch in the mixture protects the seeds so they have time to germinate and it bonds to the soil so the mixture won't blow away or erode with rain. As the mulch decomposes, it adds extra nutrients to the soil."