When to Trim Hair Grass?

I like to trim my hair grass to be about 1.5 inches tall. So I end up trimming it every 2-3 weeks. Trimming is fine, I just use my scissors to keep it nice and neat.

Can I trim hair grass?

Trimming will encourage vertical spread through more runners and also the emergence of new shoots. ... When trimming you'll get rid of the withering growth which will force the grass to employ its energy in making new, fresh shoots. With proper care, your DHG should double within a month or so.

How long does it take to grow hair grass?

Size and Growth Rate

After all, it is called Dwarf Hairgrass for a reason! You can expect it to grow to about 5 inches tall once it is fully grown. In moderate-high light intensity, it will reach its maximum height in about 4 weeks. This means that it can grow at a rate of 1 to 1.5 inches per week.