by Peter Heffelfinger
posted September 21, 2020
The End of Summer
After the many days of forest fire smoke, with a lack of wind due to the inversion effect of the heavy haze, it was a relief this past weekend to finally see the sun and feel a small breeze. The extreme fire danger is still present, so one hopes we can get through the fall without any local blazes.
While the weather was on hold, the garden duties kept perking along. The last of the tomatoes needed to be processed or given away, the final cucumbers had to be pickled or made into appetizers, and the cabbage heads, both green and red, made their way into the sauerkraut jars. In June a third of my seed potatoes failed to sprout due to the wet weather, but, to my great relief, the rest of the seed ultimately produced a healthy harvest of Yukon Golds, La Soda Reds, and California Whites. To quickly cover the failed potato ground I planted a few hills of winter squash and pumpkins. By September that bare corner of the garden was filled with the bright oranges of Cinderella’s Coach squash and Sugar Pie pumpkins.
At the other end of the garden, a planting of standard pumpkins is offering similar pre-Halloween bounty, along with a great number of Vegetable Spaghetti squash. As the vines die back, all the members of the extended gourd family need to be moved to a dry, airy space to properly cure prior to storage indoors. It’s going to be a cucurbit winter.
The early September plantings of Oriental greens, Miner’s lettuce, mustards, turnips and kohlrabi all came through the smoky stasis. As often happens, I seeded the bed a bit too thickly, so the first duty was to carefully thin the seedlings to give them proper spacing. For fall and winter vegetables it is important to leave extra room between the plants; they need to spread out a bit wider to gather the decreased light from the low-angled winter sun. At 45 degrees latitude north, our corner of the Pacific Northwest is halfway to the North Pole, and in winter is far removed from the more sunny south.
I also made a second planting of fall greens two weeks later, just in case there was any problem due to the continually grey days. If we get an extended stretch of warm autumn weather, both patches should do well. If cold weather threatens later on, I can set up small hoop houses of floating row cover to keep off the frost. I prefer row cover to plastic for winter protection, since it provides just enough added heat to protect hardy greens, allows the rain to water the beds, and also softens the harsh winds. Given our recent trend toward warmer but wetter winters, I’m betting that we won’t see any really hard freezes. But just in case, it pays to keep a supply of Agribon or Reemay row cover handy.
Fall Cover Crop
The fall equinox is also a good time to plant a fall cover crop. I prefer annual rye since it’s simple to plant. I find that most cover crop mixes include seeds of widely varying size, from large Alaskan peas to tiny crimson clover, with annual rye in the middle. It’s difficult to plant each seed at its proper depth, often resulting in spotty germination. I cover freshly seeded rye, lightly raked in, with floating row cover for a few weeks, as protection against hungry birds. If you wait to plant rye later in the fall, when the soil is much cooler, the row cover also provides just enough warmth to sprout the seed.
Row cover material is actually plain white interfacing, commonly used in lining down jackets and other clothes. Who knew it could also be used to protect gardens against the cold? A tool of the garment industry has crossed over into horticulture.