Hobbies

A gnome in mythology is a small, humanoid creature that lives underground. In more common use, garden gnomes are often used to decorate people's gardens. They are small, usually made from ceramic and are generally wear red pointed hats.

A hedge is a row of plants that have been planted very close together and trimmed into shape. Hedges can be used instead of fences to mark a boundary or to keep animals (or people) from getting over the fence.
Hedges are a very simple form of topiary. If you grow a lot of hedges together in a pattern, you can make a hedge maze.

Henna is a large shrub or small tree that has been used for thousands of years as a reddish-brown dye. The dye is made from the leaves of the henna plant, and is used to dye fabric, hair and to make temporary tattoos.

A hobby is something that people do for fun rather than as their main job for money. Hobbies are often creative, like making quilts or gardening.

A hose is a long, thin, hollow object that is used for putting water through. Hoses are usually attached to taps. People use hoses to water their gardens, to fill their swimming pools or to wash their cars. The boy in the picture is holding a blue hose.

Knitting is a way to turn thread or yarn into cloth. Knitting consists of loops called stitches pulled through each other. The active stitches are held on a knitting needle until another loop can be passed through them.

A landscape is a wide view of scenery that is generally farmland or wilderness, not a cityscape. Paintings of landscapes are generally done with the paper or canvas wider than it is tall, which has given rise to the name landscape for any paper in the same format.
The opposite of landscape is portrait.

A lawn is a patch of grass that is usually grown around a house in the front and back yard. Grass grows long leaves and stems from ground level without much branching, so a lot of grass plants together can be cut so that they are all the same height, which makes a lawn.

Layering is a technique for propogating plants. It works best for plants that grow roots slowly, and plants that would naturally grow roots where a stem touches the ground.
To layer a plant, you usually take a stem and bend it down towards the ground, or into a pot, and hold it in place. You damage the stem where it touches the ground by cutting it part way through, adding some rooting hormone if you want. After some time, the plant will grow roots and shoots at the cut and it can be removed from the parent plant.
Layering can also be done in the air by cutting a stem part way through, adding the rooting hormone, and bundling up some damp potting soil or peat moss around the cut. The plant will grow roots into the bundle of soil, and then it can be removed from the parent plant. This works best with plants that aren't flexible enough to be bent to the ground.

Loam is rich soil, suitable for growing plants in. Loam can be made from poorer soils by adding sand, clay or compost to it.