Friday, November 23, 2012

Simplest Frost Blanket/Row Cover to use

Wednesday, Pikes on Barrett Parkway still had some Frost Cover/Frost Blanket/Row Cover available. It is stocked where they keep the bird netting and landscape fabric. The frost blanket they carry only provides 2-4 degrees of protection. For a hard freeze like Sunday morning you would have to put 2 or 3 layers across to achieve the amount of protection needed. A roll costs $9.95 and is 6 feet wide and 50 feet long.

The simplest way to use a frost blanket/row cover is to just wrap it around a plant like I'm doing here. It does help if you have someone to help when it is windy!


Dalita's peas being covered while a breeze is blowing

In the case of Dalita's peas, the vines are tender and the weight of the clothes pins drags the cloth down and somewhat compresses the vines. They recover quickly once you take the wrap off but if you need to leave it on for multiple days it could be a problem.

Rocks were used to anchor the cloth to the ground

Clothes pins anchor the loose end to the rest of the blanket

 The other easy way to use a row cover (no construction necessary) is to spread it over a bed like I've don on Bed 37 (Master Gardener Bed.) However there are drawbacks to just laying it on top. 

In the case of the MG bed, the Frost Blanket isn't really wide enough to cover all the mature broccoli and collard plants in the entire bed. The blanket is only 6 feet wide and there are tall plants throughout the entire bed. This means the frost blanket will have to be cut in two and anchored down, folded over, pinned together, etc to make a seam. It can be done but it is harder.

You can use a sheet but sheets are heavier and compress the plants more. Also, if there is wind it will flap and beat the plants up more than a special light weight row cover/frost blanket will.

Use rocks, landscape pins, etc to anchor the row cover down on all sides and ends.
Notice how the back side is not really covered! This is a staged picture.

Cold Weather Warning

Hello Everyone!
   I hope you had a great Thanksgiving and are ready for the weather to shift into a more Christmas like pattern. The shift begins Friday night!

Sat - low of 31
Sun - low of 26
Mon - low of 31

Then the temps go back up and the next "low low" will be on Thursday (32).

The important thing you have to remember is that frost can and will form at 34 or 35 degrees, especially in a garden that is so exposed like the Community Garden. The trees are far enough away they don't prevent the air from settling and frost developing.

The key to preventing cold damage to your vegetables (if you aren't going to use a row cover) is to keep everything well watered. Plants can tolerate more cold when they have been watered well.

If you have a chance, be sure and water thoroughly (not a sprinkle and run) on Friday but if you can't on Friday you definitely need to water extra well on Saturday!

If you want to look at the link Denise posted a few weeks back about the frost tolerance of vegetables, you can find it in this post on the blog.

                     Frost-tolerance-of-vegetables

Good luck everyone!

Vicki