10 Common Aquatic Plant Factoids You Should Know.

Terrestrial Plants vs. Aquatic Plants
The “opposite” of an aquatic plant is a terrestrial plant.  Aquatics live in and around water.  Terrestrials live on land.  So water lilies are aquatic.  Oak trees are terrestrial.

Marginal and deep water aquatic plants
Within the community of aquatic plants there are those that live on the edge of the pond in well-saturated soil or gravel, and those that live in the water.  The first are referred to as marginal, or transitional, plants.  The second are referred to as deep water plants.

Invasiveness
One of the characteristics water gardeners concern themselves with is a plant’s aggressiveness, its tendency to propagate, reproduce, multiply, and grow at the expense of its neighbors.  The term hobbyists use to describe this characteristic is invasiveness. It refers to a plant’s tendency to invade or aggressively take over, and occupy a particular part of the water garden.  If a plant exhibits extremely invasive, aggressive tendencies, your customer will probably have to trim it back so that it doesn’t suffocate its neighbors.

Floating Plants
Plants like water hyacinth and water lettuce are referred to as floating plants for obvious reasons.   They’re plants that make excellent filters since they derive all of their nutrients through the water.   They also tend to be annuals in most non-tropical climates.

Geographical Zones

For plants, the world is divided into 11 geographical/climactic zones, which go from #1 (a tropical climate) to # 11 (Antarctica).  These zones are used to indicate where plants will survive, thrive, multiply, propagate, and where they will not.  And the phrase “this plant will be hardy up to zone 7” is how it’s usually expressed.   

Rhizomes

Rhizomes are horizontal stems or roots on an aquatic plant.  Rhizomes serve as a mother stem off of which lots of baby stems grow, plants propagate and invade.

Viviparous

In the animal kingdom this term refers to animals that give birth to living young (like humans) instead of eggs (like chickens).  But in the plant kingdom it refers to plants that germinate while still attached to the parent plant.

Variegated
– Having to do with variety in colors and shapes. 

Anthropomorphic
– Giving human-like qualities to something that’s non-human.

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