Search results
Results From The WOW.Com Content Network
Hopkins' bioclimatic law states that in North America east of the Rockies, a 130-m (400-foot) increase in elevation, a 4° change in latitude North (444.48 km), or a 10° change in longitude East (two-thirds of a time zone) will cause a biological event to occur four days later in the spring or four days earlier in the fall. [1]
Verbena stricta, also known as hoary verbena [1] or hoary vervain, [2] is a small purple wildflower native to a large region of the central United States. [ 3 ] Region
The term is sometimes used to refer to the need of herbal (non-woody) plants for a period of cold dormancy in order to produce new shoots and leaves, [1] but this usage is discouraged. [2] Many plants grown in temperate climates require vernalization and must experience a period of low winter temperature to initiate or accelerate the flowering ...
Early- to mid-spring blooming hyacinths (Hyacinthus spp.) are available in shades of blue, pink, red, purple, and white. Sweet-scented and hardy in the same climate as snowdrops, they make a ...
Another bloom that signals the end of winter and the start of a new gardening season is the Crocus. A squat groundcover in the Iris family growing 4 to 6 inches tall and wide, they are yellow ...
Verbena bipinnatifida is an herbaceous or semi-woody perennial. [4] It produces pink or purple flowers primarily in the spring, but can bloom anytime throughout the growing season. [ 5 ] Its leaves are finely dissected, into segments that are 1–4 mm wide.
After what was the warmest winter on record, the upcoming winter should be wet and milder for most of the U.S., according to the Farmers' Almanac.. The 208th edition of the Farmers' Almanac, out ...
Verbena oblaetia Retz. Verbena rubra Salisb. Verbena canadensis (syn. Glandularia canadensis ), commonly known as rose mock vervain , [ 2 ] rose verbena , [ 3 ] clump verbena [ 4 ] or rose vervain [ 5 ] is a perennial herbaceous flowering plant in the verbena family ( Verbenaceae ) with showy pink to purple flowers..