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Winter Annuals: Annuals are plants that complete their life-cycle within a single growing season, and they are often able to undergo more than one life-cycle in a season. Annuals are also characterized by the production of large numbers of seeds so that the weed seed population in the soil is constantly replenished and the weeds keep reappearing.When winter annuals digging, skim off annual weeds and dig them into the bottom of each trench along with organic manure or garden compost. Subsequent cultivations should kill the youn weed seedlings that emerge.
Annuals are plants with a short life but a merry one. In the space of a few months they grow, flower and die, leaving the ground free for further cultivation, if necessary, and for other plants. Biennials are plants which must be renewed annually from seed, since they die after they have flowered and set seed. In this they resemble annuals, but biennials take over a year to complete their cycle of growth. Seed sown one year will produce plants that will flower the next year, ripen their seed, and die before the second winter annuals.
This hardiness zone map will help you measure the degree of cold that a plant can tolerate in your area. The lower number represents the coldest temperature in which the plant can survive and the higher number refers to the warmest temperature in which the plant will thrive. Some plants, such as hardy bulbs, actually need winter annuals chilling and will lose vigor in a warm zone. No zones have been given for annuals because they do not usually live through the winter annuals.
The plants listed in this book carry a hardiness rating. This indicates that it will flower at the average minimum winter annuals temperature that is given for that zone. |
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