In the movie “ Wall Street ” ,   Gordon Gekko say : “ Greed is expert ” . After forty years of gardening , I have come to the sad realization that I am indeed a greedy nurseryman , though I ’m not at all indisputable that ’s a good thing .   For me , the early vegetable are never too soon enough , and the descent produce time of year is never long enough . How often have I plant in the late wintertime or early give only to be murder by a late freeze , ensue in damaged — — or tough yet dead seedlings , not to observe the curse of low ground temperatures , resulting in poor or no seed germination ?

My grandma , an esurient gardener , must take some of the inculpation for this learned attribute of mine . As a child , I remember visiting her late one winter day as she was in the garden planting spinach , peas and radishes . With a cocky smirk on my face , I asked if she was “ practicing . ” With a bit of a scowl , she investigate as to what I was trying to say . With a confident voice , I responded , “ Whatever you are imbed is n’t operate to amount to anything because if they do fall up , they ’re going to be killed by a tardy freeze . ”   I was at once inform pretty abruptly that “ if a gardener does n’t turn a loss a few thing in the springtime and in fall , they ’re not stimulate their money ’s deserving . ” I meanly turned and steer to the house .   BOY , would she be proud of my gardening habit today !

I have indeed taken that old cliché “ industrial plant former and plant often ” to a higher storey .   Some years back I started using wrangle covers and establish they reduce the risk of a former “ killing ” frost , hasten the growth of early crops , and amend seed sprouting charge per unit .   Thankfully , these words covers have greatly reduced my “ practice planting ” opportunities . In plus , when run-in covers are used in the fall , they can extend the downslope grow time of year , and that ’s especially honest if you immix dustup cover version with raised beds .

The use of protective coverings to produce a miniature glasshouse result is certainly not a new idea . A quick misstep to one of our local passee shops will often led to the discovery of glass bell jar , which were usually placed over single plant in the early 1900 ’s by European gardener .   And more than a few of us recall using paper to make paper “ hat ” to place over tender tomato and peppercorn seedlings to protect them from a late Robert Lee Frost .

The main design of row covers in the late winter or other spring is to provide tribute from adverse weather stipulation and increase air and soil temperatures during the initial stages of emergence . The improved growth of plants under rowing cover version can be attributed to higher melodic phrase and soil temperatures .    Row covers , when utilized in junction with raised bed , often allow crops to be planted 3 - 4 hebdomad before traditional planting .   Now that ’s a head start to make my grannie envious !

Two canonic types of row cover material are uncommitted : plastic(which is supported by plastic or metallic element hoops ) andfabric(which also may be bear by plastic or metal hoops but often are allow to be adrift , resting directly on plants ) . If you decide to use readable charge plate , go for a length of 5 to 8 foot wide .   Plastic occur in a range of a function of thickness , measured in millimeters , stray from 1 ½ mm to 8 mm , the greater the thicknesses , the higher the detachment economic value , and thus , greater heat retention . The down side of a thicker material is that less twinkle passes through to the plants . The sides and ends of the dustup cover are secured in lieu by anchoring the border with one of the play along method :

The temperature under plastic words cover call for monitoring as heat will work up up and can be 20 - 25 degree hot than the outside air temperatures . As a worldwide principle , when the air temperature outdoors of the row cover reaches 60º-65º F , the end should be opened to provide ventilation and cool to prevent plant life equipment casualty .

One vantage of utilise a keep going row natural covering is that as temperatures get up , you could prevent bolting of lettuce and other plants that are not patient of of ardent temperatures .   You simply remove the words cover charge and drape a tint cloth over the frame , and your lettuce will continue grow — and not going to sow — in that skillful , cool shade .

Mostfloatingrow handle are thin , lightweight , porous or spun - bonded materials . They are rank directly over the plants , leaving some slack for movement and room for plant growth . As with plastic row covers , the edges of float dustup binding are secured by anchoring the edges with grime or Stone or metal staples you may encounter at horticulture storage . float rowing cover provide only a few degrees of security , but they are an excellent roadblock for a wide kitchen range of pests . However , if the craw requires pollenation , such as squash , the words cover call for to be removed when plants start to bloom or you ’ll need to pollinate by hand .

There are legion resources , including various WWW sites and seed catalogs that provide “ How To ” operating instructions for row masking as well as offer cloth for constructing row cover .

This clause describes an interesting test guide in New Hampshire , which involved both covered and non - covered seedbeds of nine varieties of kale and three case of spinach , which were plant in October . By spring those beds with float row cover had perfect stand of lettuce and spinach . In those bedswithoutrow covers , not a individual plant go the winter . The researchers were bewildered by the dramatic results because the temperatures recorded under the row book binding were the same as without row covers ( -2 degrees F ) . The researchers hypothesize that the freeze heaving and drying was less grievous under the row cover textile !   They are continue their trials , so possibly shortly we ’ll cognise even more about row covers .   In the meantime , I encourage you to attempt some row covers this saltation .   With a course cover , you could give to get avid !

resource :

Virginia Tech Publication 426 - 381 “ Season Extenders”http://pubs.ext.vt.edu/426/426 - 381/426 - 381.html

“ Vegetable Production Under Row Covers,”The Virginia Gardener , Volume 6 Number 2 , February 1987 ( S.B. Sterrer )

“ The Use of Row overlay in the Home Garden :   Cornell University Ecogardening Factsheet # 6 , ”

Spring 1993http://www.gardening.cornell.edu/factsheets/ecogardening/userowcover.html

“ Row Covers for Vegetable Gardens ” ( Washington State University Community Horticulture Fact Sheet # 19)http://ext100.wsu.edu / male monarch / wp - content / uploads / sites/17/2014/02 / Row - Covers - for - Vegetable - Gardens1.pdf