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seeds in weed bag

How to Grow Seeds in a Plastic Bag

Small seedlings can prove challenging to sprout in the garden bed, since watering or rain may wash them away before they germinate. Growing the seeds in advance inside a plastic bag prevents this issue and helps speed germination. Plastic bag sprouting also allows you to test germination rates, which is vital if you are using saved garden seed or old seed from previous years. Germination time varies depending on the plant variety, but most sprout within three to 14 days.

Stack two paper towels on top of each other. Fold the towels in half and sprinkle them with water until they are completely moistened but not dripping wet.

Spread the seeds out on top the paper towel, covering only half the towel with seeds. Space the seeds so they are not touching and there is about 1/4-inch of space around each seed.

Fold the damp towel in half, sandwiching the seeds between the towels. Press lightly on top the towel so the seeds are in full contact with the towels on both sides.

Slide the paper towel into a plastic zip-top bag. Seal the bag closed to trap the moisture and prevent the towel from drying out.

Set the sealed bag in a warm area, such as on top the refrigerator, where temperatures are between 70 and 80 degrees.

Check the seeds every two days until the seeds begin to swell and the first short sprouts emerge. Sow the seeds immediately in a pot or prepared garden bed at the depth and spacing recommended on the seed package once they begin to sprout.

Things You Will Need

Plastic zip-top bag

Tweezers make it simpler to transplant sprouted seeds without damaging the tender sprout.

Seeds in weed bag

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Date and time: Thu, 03 Mar 2022 21:29:24 GMT

Seeds in weed bag

In the backyard or in the wild, roguing (selectively pulling or cutting weed plants) and herbicide spot treatments can help prevent small patches of invasive weeds from becoming large infestations. However, herbicide applications may be of little value where senescent plants have already set seeds, because the dead “skeleton” plants may bear dormant but living seeds, which can initiate new infestations.

In the past, such plants may have been removed by stacking and burning them. However, under present conditions, burn permits are hard to come by. Landfill disposal is another option, but transporting seed-bearing plants may spread the seeds, making the problem worse instead of better. Deep burial of plant material on-site is another option, if feasible.

A simple, solar tent process may be used to destroy limited quantities of rogued plant materials on-site. The tents are inexpensive, disposable, don’t involve applications of herbicides, and have been successfully tested in several areas of California.

The process involves three steps. First, collect the plant material during warm months of the year in black trash bags. Second, place the bags, containing a couple quarts or more of water to hydrate the seeds (this is essential!) on a makeshift platform to provide airspace between the bags and the ground. Finally, cover with a tent made from a sheet of clear plastic film, anchored firmly to the ground (Figure 1).

Except in cold areas or where it is persistently cloudy or foggy, the diurnal accumulated heat within the tents (up to 158 o F, or higher) should inactivate propagative materials within a few days. Seeds encased in protective pods or other structures may require additional heating time. They can then be disposed of without worries of further spread.