The robot avoided deep water, as if its force fields needed rock or soil to push against.

Particularly difficult species may need cool air above and warm soil.

Once in the ground they need fertile soil, lots of sun and consistent watering.

As a rule, they need warm, sunny places and soil that will keep their roots dry.

So, it made sense that the country would need soil and mulch.

Snails need soil at least 2 inches deep in which to lay their eggs.

If it has been in the same pot for many years, it probably needs new soil, he said.

M9 is slightly more vigorous; trees will reach about 8ft, and need good soil.

One type of plant in the rainforest does not need soil.

And because it is mostly water, celery needs truly moist soil.