How Long Does It Take Grass Seed to Start Growing?

Written by meg butler
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How Long Does It Take Grass Seed to Start Growing?
(Tobias Geberth/Wikimedia Commons)

Stage One: Budding

How long does it take grass seed to start growing? It largely depends on the type of grass that you have seeded. Most grass takes one or two weeks to bud and send up thin shoots. But don't panic if you haven't seen any buds in that time, as growing times vary. Rye grass only takes 5 to 10 days to grow, while buffalo grass takes 14 to 28 days.

Once your grass seed has budded, you should see a light covering of grass even though 80 to 90 per cent of the seeds have sprouted (depending on the seed).

Tip: For a better idea of when your grass will sprout, plant a few grass seeds in a small pot when you seed your lawn. Keep it by a window and keep it well watered. These seeds will germinate a few days before the rest of your lawn.

Adverse weather conditions or extreme temperatures may cause the seed to delay germination until conditions improve.

Stage Two: Growth

A week after the sprouts emerge, your lawn will still be light green and thin, but the blades will be much longer. To encourage your grass to thicken, mow the lawn with your mower set on its highest setting. This will force the grass seedlings to grow more leaves and make your lawn thicker.

Stage Three: Cover

Around three weeks after the first sprout, and after a good mowing, your lawn will appear greener and fuller. However, it has not reached maturity and you should limit traffic on your lawn to allow it to continue to grow and take root.

Stage Four: Adolescence to Maturity

Two months after the first sprout, your lawn will have taken root and is now ready to support traffic. However, keep in mind that this stage may take longer to reach if temperatures are too extreme, or your lawn is under or over watered.

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