Vegetable backyard season extension is a time period used for rising greens exterior of the pure rising season—that’s throughout winter, early spring, or autumn spring when outside temperatures are too chilly for many vegetation. To increase the season, vegetation should be protected by covers small or giant.
When soil and air temperatures fall beneath minimal temperatures for rising greens, you’ll be able to hold crops rising by artificially extending the season. Season extension merely means defending vegetation by protecting soil and air temperatures at or near-optimal temperatures required for rising.
Season extending units
Season extension might be achieved with cloches, plastic tunnels, and chilly frames—none of which require electrical energy or gasoline, and hotbeds and greenhouses which do.
Even the least expensive types of plant safety can enhance the variety of rising days by at the least one week however extra generally two to 4 weeks in each spring and autumn. That could be a important increase—14 days to as many as 60 days whole–to the rising season.
Hotbeds and greenhouses that are artificially heated by electrical energy or gasoline can insure 352 rising days a 12 months—however the associated fee could also be prohibitive for a lot of residence gardeners.
When to make use of season-extending units
Season extension just isn’t troublesome. Typically, you’ll be defending cool-season crops rising early in spring and late in autumn from temperatures that can trigger them to endure—about 40°F/4.4°C and decrease.
Match the temperature safety the crop must the least costly resolution.
- For a tough frost or prolonged freeze (a half day or longer—even weeks), defend vegetation with a plastic tunnel or a transportable chilly body or greenhouse.
- For a heavy frost (a number of hours or in a single day temperatures at or barely beneath 32°F/0°C), defend vegetation with a medium to heavyweight row cowl or a light-weight row cowl doubled over.
- For a lightweight frost (simply an hour or two at temperatures between 32°–36°F/0-2°C) defend vegetation with an overturned cardboard field, a paper bag, or a light-weight row cowl.