A hydrothermal vent is a fissure in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots.
When to Set out Tomato Plants. The best time to set out tomato plants is after danger of frost, which is usually anytime in April, May or early June. If you started seed indoors, the seedlings should be about 6 to 8 inches tall and hardened off before transplanting outside.
August 17, 2016. With August quickly waning and your garden stressed from the summer drought, you might not be thinking about plantingâbut now is actually a great time to plant new vegetables for a fall harvest. As the loss of daylight continues, the soil remains warm, but itâs easier to get seeds to germinate.