To expose to the circulation of air for purification.
@def[ 2]
Living and growing for only one year or season.
@def[ 3]
Tree or shrub dug with a ball of soil left around the roots, then wrapped in burlap.
@def[ 4]
Tree or shrub dug with the roots left exposed.
@def[ 5]
Having a normal life cycle of two years.
@def[ 6]
A leaflike plant part, usually small but often brightly colored, located below a flower or on the stalk of a flower cluster.
@def[ 7]
A slender, jointed stem, woody but usually flexible.
@def[ 8]
A structure used for starting perennials and biennials from seed and for overwintering young plants from cuttings or plants that are of borderline hardiness.
@def[ 9]
A mixture of well-decomposed organic materials, which can include leaves, grass clippings, weeds, garden refuse, straw, sawdust, manure, paper scraps, ashes, and more.
@def[ 10]
An evergreen tree, such as pine, spruce, hemlock, or fir.
@def[ 11]
An underground stem similar to a bulb, but a solid mass of food without scales and with roots growing from a baseplate and with small buds on top.
@def[ 12]
An artificially derived variety of a plant, as distinguished from a natural variety.
@def[ 13]
Clipping or snapping off blooms from perennials as they fade.
@def[ 14]
Trees that shed or lose their foliage at the end of the growing season, such as maple, oak, or elm.
@def[ 15]
The gradual dying of plant shoots, starting at the tips, as a result of various diseases or climate conditions.
@def[ 16]
Breaking off side buds on a stem while they are still small.
@def[ 17]
Having many more than the usual number of petals, usually in a crowded or overlapping arrangement.
@def[ 18]
The art of shaping trees into special patterns.
@def[ 19]
Strain of hybrid roses bearing numerous single or double flowers.
@def[ 20]
The leaves of growing plants.
@def[ 21]
Readily crumbled; brittle.
@def[ 22]
Strain of hybrid roses developed since the 1950s.
@def[ 23]
Low-growing plants that form a dense, extensive growth and tend to prevent soil erosion.
@def[ 24]
Capable of surviving unfavorable conditions such as cold weather or lack of moisture.
@def[ 25]
A dense, compact cluster of flowers.
@def[ 26]
Strain of hybrid roses combining the everblooming quality of old tea roses with the hardiness of hybrid perpetuals.
@def[ 27]
Sowing two complementary types of plants in the same plot of ground.
@def[ 28]
A grouping of similar plants or flowers.
@def[ 29]
A protective covering of various substances, especially organic, placed around plants to prevent evaporation or moisture and freezing of roots and to control weeds.
@def[ 30]
Using or grown with fertilizers and mulches consisting only of animal or vegetable matter, with no use of chemical fertilizers or pesticides.
@def[ 31]
Exotic grasses chiefly used for decorative and accenting purposes.
@def[ 32]
During the winter.
@def[ 33]
Having a life span of more than two years.
@def[ 34]
A measure of the acidity and alkalinity of a substance, such as soil.
@def[ 35]
Method for pruning that involves picking away buds, leaves, and other plant parts by hand.
@def[ 36]
A method for starting a new lawn that involves planting small sections of sod, usually circular in shape, spaced at intervals.
@def[ 37]
A strain of hybrid primroses and forerunner of the floribunda.
@def[ 38]
The pulpy refuse remaining after juice has been pressed from apples or other fruit.
@def[ 39]
Causing plants to multiply.
@def[ 40]
Cutting off and removing dead or living parts or branches of a plant, shrub, or tree to improve shape or growth.
@def[ 41]
A cultivation method that works on the principle that deeply dug, fertile soil will allow you to plant more crops in a smaller space.
@def[ 42]
A root-like, usually horizontal stem growing under or along the ground, and sending out roots from its lower surface, and leaves or shoots from its upper surface.
@def[ 43]
To break up the surface of (topsoil, for example); or, to slit or soften the outer coat of (seeds) to speed germination.
@def[ 44]
Having many more than the usual number of petals, usually in a crowded or overlapping arrangement.
@def[ 45]
Having only one rank or row of petals.
@def[ 46]
A method for starting a new lawn that involves laying out rolls of turf on a prepared soil-bed.
@def[ 47]
A fundamental category of biological organization, consisting of organisms capable of interbreeding.As a class, it ranks just after genus.
@def[ 48]
An individual, item, or part representative of a larger classification.
@def[ 49]
An organism that shows a marked change from the parent stock; a mutation.
@def[ 50]
A method for starting a new lawn that involves planting pieces of stem taken from sod torn apart.
@def[ 51]
A tubular extension of the corolla or calyx of a flower.
@def[ 52]
A stem growing along or under the ground and taking root at the nodes or apex to form new plants.
@def[ 53]
A strategy of planting that staggers blooming or fruition times throughout a season.
@def[ 54]
A secondary shoot arising from the base of a tree trunk or from the lower part of some shrubs.
@def[ 55]
Animal residues left after rendering fat in a slaughterhouse and used for fertilizer or feed.
@def[ 56]
Sensitive to frost or extreme cold; not hardy.
@def[ 57]
A decaying accumulation of fibrous leaf sheaths and roots, often mistaken for an excess of grass clippings.
@def[ 58]
Tilled earth.
@def[ 59]
To cover (land or a road surface) with loose material that is not worked in; especially, to cover (farmland) with fertilizer.
@def[ 60]
A category of biological organization forming a subdivision of species and consisting of naturally occurring or selectively bred individuals with varying characteristics.
@def[ 61]
A strategy for using space in a garden emphasizing climbing plants that can be trained to walls and other upright structures.
@def[ 62]
A secondary shoot arising from the base of a tree trunk or from the lower part of some shrubs.
