Category Archives: Garden

Garden Tarp

I recently moved up to Portland and have a killer south facing patio that is great for gardening. At least it was it the summer and fall. Now that winter has set in and the temperature’s dropped below freezing and we’ve had snow followed by more snow followed by more snow, gardening is getting a little bit tougher. 

I knew that the snow would pretty much destroy any crops I had going. To help give them a fighting chance I set up a nice little tent. Using an 8’x10′ plastic tarp and some polyester string I set to work setting up camp on my patio.

The tarp is draped over the railing to form the ridgeline and the corners are tied out to spots on the railing with tautline hitch knots. I originally tied the string to the tarp with bowline knots, but later changed them out for some caribiners to make it easier to set up and take down.

 The tarp worked pretty well. My collards, swiss chard, and broccoli are all doing well. It did not, however, help protect my succulents against the cold and I lost a few old and sentimental jades. I’m sad to lose them, but I guess lesson learned. Succulents come inside during the winter from now on.

Hopefully by next winter I’ll be able to get a more enclosed greenhouse set up to help keep the cold to a minimum.

Patio Garden Backlog

Over the summer I moved from San Francisco to Portland, OR. When I left I had a pretty healthy garden set up with a couple peppers, tomatoes, and herbs. Since the move hit right in the middle of the season, I had to spread the plants around with some friends and prepare to start a new garden further north.

This time around I would be working with a south facing patio (hooray!) measuring about 5 feet by 20 feet. Because it faces south with minimal shade, its perfect for a lot of my potential crops. We’re on the second floor of a 4 story building, as well, so my plants get a lot of additional warmth reflected and a fair bit of wind protection. Both nice through the winter.

I decided not use use the self watering planters I had used in my previous gardens and went with some inexpensive felt planter bags. I’ve never used them before, but for about $20 a five pack I felt they were worth the risk. No problems so far.

In addition to the planter bags I got a couple of felt planters meant to be hung on a wall. I strung them up to the railing with paracord and planted a couple of tests in each side.

The current crops are:

  • Swiss chard
  • Collard greens
  • Purple broccoli
  • Spinach
  • Lettuce mix
  • Beets
  • Onions
  • Carrots
  • Parsley
  • Green onion
  • Oregano
  • Catnip

As for the succulents, they’ll get another post soon.

Garden Automation

In my previous apartment I had set up a few self watering planters I made from recycled kitty litter buckets. The planters have a reservoir of water that keeps the soil moist longer. It reduces maintenance, but I still needed to top off the reservoirs every few days. So of course I set about on trying to rig up something to refill them for me.

The idea was to have a larger enclosed tank that can resupply the smaller reservoirs of each planter. To accomplish this, my system would need to:

  1. Monitor the level of the water in the reservoir
  2. Engage a pump to transfer water from the tank to the planter
  3. Disengage the pump

I had some IR transistors that I picked up a few years ago that never got used beyond turning on some LED’s and decided this would be the perfect application for them. I would use them to detect when the water in the planter got too low or too high.

The planter already had some basic floating water gauges. These were just bamboo stakes stuck into wine corks. I would use two thin slices of cork to trigger the IR sensors.

This is a brief write-up of a project that has been postponed. I moved into a new place and my new garden setup doesn’t need this pump… yet.