After a chilly and only reasonably busy day at the farmers’ market, it was a bit of afternoon nap time, and then on to making the first frost decision—to cover or not to cover—of the fall season. I “consult” four different online weather services, in general trust none to be very accurate, but when it comes to more dire predictions, like super high and low temperatures and mighty gusting winds, a certain one out the four usually stands apart and is…quite accurate. True to the norm, today three services forecast overnight lows of around 5-7°C (40-44°F), while the dire one calls for plus 1°C with “risk of frost”. So, a couple of hours before sunset, we started assembling floating row cover kits near tender crop sections. The cover, 14′ wide and cut to 50′, is kept loosely rolled on 4′ lengths of 2×2. Heavy rocks, 10lbs and up, are gathered and kept track of over the season. And that’s all you need: row cover and rocks! Unlike for insect protection, where edges of the cover should be buried, or at least, anchored firmly every few feet, frost protection only needs draping over top, and tacking down at the corners and a couple of additional spots. Anyhow, in the end, I considered the breeze, the slight cloud cover, and my…um, instinct (?!), and decided not to cover…
row cover
Latest brassicas released
On this bright and shiny Sunday, we finally released the last of the season’s brassicas from under row cover. The flea beetles have almost vanished and the plants need all the light they can get if they’re gonna make it to harvest. It’s still a bit of a long shot for the broccoli and cauliflower, but the early and prolific Red Russian kale should do fine. For what it’s worth, the long range forecast calls for a warm September—I’m still starting to slip into frost watch mode!
Crops for Fall
Newly released from row cover, five new beds of brassicas (cabbage, broccoli, cauliflower, kale) get ready for Fall. Beyond, tomatoes (and beyond that, the farm across the road, they gather honey). In front, a vacated section that contained the season’s first planting of peas seeded way back in April, and is now awaiting a mid-August green manure cover crop of…oats! And still, no rain…
Row cover mystery
Odd bits of strange, unexplained phenomena turn up in the field from time to time, nothing to get overly excited about, but definitely weird stuff, like this case of mysteriously removed row cover. Earlier in the day, I noticed the cover on one section of risk crop squash was off, thought Conall had removed it, but found when I walked over that about two-thirds of the 50′ (15m) sheet had been ripped off, and lay, bunched up, about 10′ away. In the pic, you can see the remaining piece, perfectly in place, and above it, an adjoining covered row that hasn’t been disturbed in the least. The cover is 14′ wide, and while not hard to tear, isn’t easily sheared right across like that. There’s been no heavy wind in the last few days. There are no footprints or animal tracks in the bed. How did this 35’x14′ section of row cover, anchored by burying the edges every few feet, and with heavy rocks at the corners, manage to detach so cleanly?! It’s a mystery!
Risk crop
Protecting a final planting of the season, Jo and Conall lay row cover over a selection of summer squash. Also transplanted today from the squash family, more cucumber, an extra early muskmelon, and a couple of early maturity winter squash because there’s space. All of these are pretty much risk crops, with 50-65 day maturity up against our average first frost of around Sep. 20. They could have gone in a week or two earlier, but I’m gambling on another warm fall, with only a mild frost or two to get in the way (against which, row cover once again!), and MAYBE a harvest through October. Of course, the weather can be relied on less than ever, BUT, warm autumns seem to be a good bet. If this pays off, I’ll have some interesting veggies after the standard, safe season for ’em is over. Nothing ventured… You take your chances!
Pumpkins unveiled
Removed the row cover that had been protecting the pumpkins from the cucumber beetles. The pumpkins are doing fine! The CBs will keep coming, but the plants should grow faster than the beetles can munch. There’s also a chance of CB-transmitted disease, that’s a chance I’m taking. One spray-free alternative is to reposition and replace the row cover more loosely, giving the plants room to grow, but the cover I’m using also traps heat under there, and cuts off some sunlight. I could buy super lightweight cover, designed for insect protection only—it doesn’t protect against frost and lets in most of the light—but that’s an unwelcome expense this year, and possibly more of an additional expense than it’s worth. From here, the pumpkins should come out fine, CBs and all!
Late frost warning
The frost warning for last night didn’t come to anything, but it’s on again for tonight. Yesterday, we covered about 500 tomatoes, some of the peppers, eggplant, and beans, and even the basil. I don’t really think there’ll be a deadly hard frost, so this is only partial insurance. Covering half the field seemed a little much. Here, the tomatoes are somewhat safer than if they were exposed, but the delicate tops are taking a beating from the cover, and if it does freeze up, frozen dew on the row cover fabric will toast the parts of the plants directly in contact. It’s a rough little bit of weather insurance. It’ll be great to have it over tomorrow. Cross fingers!