This easy-to-use glossary will help you translate and define some of the botanical, horticultural and landscaping terms used on this site.
Click on a letter to view terms & definitions.
A branched cluster of flowers.
PART SHADE / PART SUN
Part shade and part sun mean the same thing: 4-6 hours of direct sunlight per day.
PEAT OR PEAT MOSS
Decayed remains of ancient plants, added to soil to increase the soil's ability to absorb and hold moisture.
Herbaceous plants living in the garden more than two years.
A daylily blossom typically has six petaloids. The upper three are called petals.
Leaf stem or stalk.
A measure of the acidity or alkalinity of the soil, on a scale of 1 (extremely acid) to 14 (extremely alkaline), with pH of 7.0 being neutral. Herbs grow best at a pH of pH of 7.0 or slightly higher.
One of the three most important plant nutrients; good organic sources are bonemeal and powdered rock phosphate.
A type of edging on a daylily where the edge is a completely different color than the tepals. Some picotee edges now come in two or more distinct colors.
A type of heavy ruffling of blossom segment edges that is like that of fluted pie-crust.
Snip back new growth, to keep plants compact and encourage bushiness.
A pistil is the small green tube that emerges from the throat of the daylily blossom and appears at the center of the six stamens. The end of the pistil is referred to as the stigma, and it exudes a sticky liquid by mid-morning that pollen may be applied to, either by wind, insect activity, or the intentional application by a hybridizer. The pistil is regarded as the female reproductive element of the daylily blossom.
A daylily blossom that contains many different colors. Polychromes are difficult to classify on a color chart. Polychromes are similar to blends but have more colors. Combinations of many colors in a daylily blossom are particularly common in pastel shades.
One of the three most important plant nutrients; good organic sources are greensand and small amounts of wood ashes.
POT-BOUND (ALSO ROOT-BOUND)
Condition of a pot-grown seedling or plant whose root ball is thickly matted and contains little soil.
PPAF OR PATENTED
The letters PPAF or PP##### used behind a plant name lets you know that a US Plant Patent has either been applied for (PPAF) or has been assigned to the plant (PP#####). For example, Brunnera m. 'Jack Frost' PP13859 has been assigned a US patent number of 13859.
Propagation without a license and export outside of North America is prohibited for all US patent-pending and patented plants. Growers and gardeners alike may not legally divide or propagate patent-pending or patented plants without a license from the patent holder.
Some daylily cultivars produce an occasional plantlet or leafy shoot that emerges from a node on a blossom scape. As the proliferation matures, it may send out small rootlets at its base. Proliferations may be removed from the scape and grown on in soil to eventually become a mature version of the parent from which it was removed. Proliferations are a form of asexual propagation and are always true-to-form. Hybridizers usually regard the tendency for a daylily cultivar to form proliferations as an undesirable characteristic of a hybrid.
The process of increasing the number of plants from the original or mother plant. Commercial daylily propagation involves digging and dividing mature clumps into single fans or divisions. These asexually propagated plants remain true-to-form in that each division is identical in all characteristics to the mother plant. Daylilies cannot be propagated true-to-form from seed.