Structure used to protect plants from the weather and to get them adjusted to the weather before planting them out in the garden.

Abiotic:

Propagation with out pollination.

 A material that is able to decompose or break down through natural bacterial or fungal action, substances made of organic matter are biodegradable.

 Tissue in the plant that produces new cells.

  An identical reproduction of the parent plant.

Compost, also called humus, is a soil conditioner made up of partly decayed organic material, usually consisting of plant materials such as leave and pine needles, plus manure and soil.

Corms are similar to true bulbs, in that they contain a stem base, but they do not hold the entire baby plant. The roots growing from a basal plate are located on the bottom of the corm. (The basal plate is the base area of the bulb.) The growth point is located on the top of the corm. A corm only lasts for a single season, but a new corm will form [..]

A hardened impervious layer, typically of clay, occurring in or below the soil and impairing drainage and plant growth.

Meristem: