Question

Why does crab grass do so well when ordinary grass struggles in late summer? Is this a phenomenon ? Or is this based on a scientific principles, what is it that causes crab grass to thrive in relation to the different type of plants ?

Answer 1

Crab grass does so well when ordinary grass struggles in late summer

because its seed germination is higher when exposed to hotter

temperatures.

The seeds of crab grass are mostly dormant and their germination is

dependent on the soil temperature. During summer, the temperature of the

soil is usually higher which aids its growth .

This therefore explains the reason why crab grass does well than ordinary

grass in late summer periods.

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