Watering in early spring- how much in a greenhouse, hoop tunnel, or cold frame?

Just got a great question from the earlier post. How much do I water in winter-early spring in my greenhouse? Not very much. Since I don’t have the drip systems on and I don’t want to empty hoses that might freeze, I fill up 5 gal buckets, leave them inside the GH and then fill up my watering can from them and water the plants. Five gal buckets are kinda heavy for me (40 lbs) so I prefer to transfer the water to a watering can. Or just fill up a watering can from your house and refill as needed. The only problem is my greenhouse is too far from my house to keep refilling a watering can from the house. Notice the white row cover on the side, ready to go back on the greens tonight when it gets cold.

This time of year is called the ‘shoulder season’—not quite winter and not quite spring-with extreme temperature swings from day to night. There is no set formula for watering because one day the temperature can be 60°F and the next day in the 40’s°F or even 30’s°F. Same with nighttime temperatures.  Or you structure might really heat up in the day if you forget to open the doors or plastic on the ends or open the cold frame. So there are lots of variables that will affect how much to water. I really watch the plants and the soil in regards to watering when I have to do it by hand. Does the soil appear damp after your last watering even though its been maybe 4-5 days? Don’t water. Do the plants look like they need water? Are they looking stressed? Wilted? Water! The cooler it is, the less you have to water. I don’t water till the soil FEELS dry when I put my finger in it around a plant. But I can tell you this, you will be watering much less than in the heat of summer.


Greens in the Green House!

So my greens made it through the worst of winter (I hope) and have really started to kick in growing. They went on hold (stopped growing) from around Thanksgiving to mid-January when we had less than 10 hours of daylight. But since then the daylight hours keep increasing daily which is a signal for the plants to grow again in earnest. In case you are wondering when I planted all this, I planted the carrots, arugula and spinach last September inside the greenhouse, and the red and green lettuces I started from seed under grow lights inside my house on January 2nd and then were put out in the greenhouse in early February.

To keep the greens from freezing in the dead of winter in the greenhouse which is unheated, I’ve cover them with one layer of winter weight row cover every night and on some really cold nights (when temperatures got down to 14-17° F), I put two rows of row cover over them. One night the lettuce actually froze. But I read in Elliot Coleman’s Winter Harvest Handbook that if you don’t harvest it when it’s frozen, it may be fine by the afternoon when it warms up and sure enuf, it thawed out and is still growing great. You just can’t harvest it when it’s in a frozen state.

My Greenhouse a few summers ago

In the greenhouse are some carrots which aren’t very big yet (about the size of a pencil in circumference) some green and red lettuces, arugula and spinach, all of which will be harvested before the Green House (a play on the word greenhouse since my greenhouse was painted green) gets too hot. In fact when the day temperatures reach the 50’s, I put fans on to blow the heat out of the greenhouse.


Pray for heat, girls!

You see, I don’t worry about it being too cold but worry about it getting too HOT which will cause the lettuces and spinach to bolt (make flowers) which will cause it all to go bitter and then it is only good for our chickens who don’t seem to mind the bitterness at all. In fact I think they pray for the heat!

Looks like some of the lettuce and spinach are now big enough to pick the outer leaves while leaving the inner leaves to continue to grow. And a big bonus for me is to see so much green now already at the start of March! I love going into the greenhouse right now. Refreshing when the outdoor plants are still sleeping…

Cold nights are here-protect you plants!

Atomic Red and Cosmic Purple carrots harvested last week


Here it is Friday, November 17 2017 and I was just remarking that except for the one cold night that killed off all the tomatoes in September, how warm it has been. If it wasn’t for that one freezing night, we’d still be harvesting tomatoes!

Well it changes tonight getting well below freezing and will continue to be cold with temperatures in the mid-20’s at night and low 50’s in the days for about the next 5-6 days.

All the warm season veggies have been done for a month but I still have a few cool season crops out in the garden like Lacinato kale, Voiletta bok choy, Florence bulb fennel, Atomic Red and Cosmic Purple carrots, Detroit Red beets and Argentata chard. Since I want to keep them going as long as possible, I will put winter weight row cover (.9-1.0+ mil weight) over the plants to protect them until the temperatures get above freezing at nights. Also I have lettuces and spinaches growing in the unheated greenhouse and will cover them as well. Of course an option is finish harvesting everything and call it a season!





Garden officially done for 2017

The garden officially finished on the night of October 9. There were a few cool season crops that did fine in the 27°F temperature-mainly beets, carrots, kale, and bok choy but all the warm season crops are done. I think this was early for a first frost. I write it down so I can review the frost date next year.

I did cover the lettuces in the greenhouse with winter weight row cover but it was actually unnecessary as the temperature was above freezing in the greenhouse and they are looking great and loving the cooler weather.

Now that it’s done, I’ll have time to share some gardening experiences and new crops I tried this year. I will be posting in the next few weeks some of the highlights of this year in the garden.

I still have to clean out the garden and put it to bed. AHHH CRUMBA!

But first I think I’ll go flyfishing one last time this year before it really gets cold…


Cool season crops have begun


When I was looking through what I plant each year, I realized I actually grow many varieties of cools season crops (like greens/lettuce). I started some seeds of cool season crops inside under lights but no heat on Jan 17!  I never put the heat mats on for cool season crop seeds, only for warm season crops and it is way too early for them just yet.

I started:
Asian greens: bok choy, pak choy, Wasabi arugula

Lettuces: 4 Season Lettuce butterhead, Yugoslavian Red butterhead, and Santoro butterhead lettuce. Can you tell I like butterheads?!

Leeks: Solaise, King Richard and American Flag

Onions: Candy (it is an intermediate or neutral variety) which is they type of onion we have to grow here.

Spinach: Carmel-Just planted the seeds today. Still have some spinach plants that have overwinter nicely outside in a raised bed with only winter weight row cover on it. By planting a crop of spinach last fall, I’m hoping I get a bumper crop of spinach in March! The variety of spinach I like the most is called Carmel which overwinter last year and looks to do the same this year. You can get seeds from Johnny’s or plants from Agua Fria Nursery.


four season lettuce is looking good

Today I transplanted up lettuces and Asian greens to pony pots from seed trays. The plants are looking good but need to grow more before I put them out in my green house or cold frame. You can plant outside in sunny raised beds in March but all-greenhouse, cold frames or just plain old beds will need winter weight row cover on the little starts to protect them from our cold nights.  I’m hoping to put them out by beginning of March. The varieties I grow at this time of year are very cold hardy. I’m trying to get a head start as our cool season crop season is pretty short here before it gets too hot and everything bolts. And there is nothing better than spring spinach or lettuce!

More daylight hours/plants start to grow again

Growing Spinach and Lettuce in a Cold Frame

The Persephone period is over. Elliot Coleman in his Winter Harvest Handbook, coined this name. When daylight hours are less than 10 hours per day, the plants that are in the ground slow down or stop growing altogether during this time. This means that the spinach or mache you planted last fall had slowed down and by Thanksgiving stopped growing. The Persephone period can be longer or shorter depending on what latitude you live in. For us in Santa Fe, it is from Thanksgiving to Jan 14th.  In states that are further north, they are still in the Persephone period. As the daylight hours continue to get longer and longer, you should notice the plants starting to grow again. I grew ‘Carmel’ spinach last fall in one of my beds up by my house and it is still alive, covered with winter weight row cover. I did this the year before and it survived and gave me beautiful spinach by March that I was able to harvest 4 times before it became too warm. If you didn’t grow anything to overwinter, you can now start spinach, Asian greens like ‘Tatsoi‘ and ‘Baby Bok Choy’, mache and some very cold hardy lettuces like ‘Winter Wunder’ and ‘Marshall Red Romaine’ once the soil warms to 40•F+. If you keep them covered with winter weight row cover to protect them from our cold nights, you will be able harvest them in early spring barring any devastating deep freezes. If you can’t wait and want to speed up the process, start the seeds under lights inside now and transplant them next month in February. To find other extra cold hardy crops to grow, go here.

Growing Season for 2016/Fall Harvest


Fall harvest in 2016-tomatoes, beets, carrots and kale are just a few of the vegetables still being harvested here on my micro-farm

This has been a most remarkable growing season this year. In fact, I can’t remember in all my 21 years here of weather like this. After two months of unseasonably hot summer weather at the beginning (when the tomato blossoms dropped because it was too hot) and then two months of very cool summer weather (when the tomatoes didn’t want to ripen because they need heat to ripen once they are set) we now have been in an unbelievably wonderful fall. Nice and warm in the 70’s in the day and cool but not freezing nights.

But all this is going to change very quickly now that we are in November. Weather prediction is for it to change to colder weather. Like duh, it’s NOVEMBER dude! Of course it will get colder! My fruit is done-apples (we made hard cider!), apricots, grapes, strawberries and raspberries are done here. Most of my warm season crops are gone (cucumbers, squash, peppers, eggplants, pumpkins, corn, etc. except the tomatoes, my favorite crop!)

Meanwhile the fall harvest continues with tomatoes still ripening (at least this week) and all the cool season crops are kicking it and should be for quite some time if I cover them with winter weight row cover. The kale is going gangbusters, cabbage is ready, onions and potatoes are ready to harvest, carrots and beets are ready to be dug out too and chard is busting out all over.  My broccoli and escarole I planted in August at my fall garden class are almost ready too. Then pantry is bursting and the refrigerators and freezers are overflowing too! Enjoy what we still have left of this season!