I’m a little late with this post…even here in Alberta, I think most gardeners have their veggie seeds in and even most of the transplants planted out – although they may still be holding out on the tomatoes and pepper seedlings outside of the greenhouse. I had promised way back at the end of March to offer up some notes on a lecture I had attended about raised bed gardening and here we are at the end of May and I’m just getting around to it now. While it may be too late to apply some of these ideas this year, there might be a few things on this list to consider for the future!
Without further ado (I’ve “ado’d” enough with this one, I think!), here are a few key ideas about growing veggies in raised beds from Janet Melrose, the garden animator for the Calgary Horticultural Society and facilitator for the Community Garden Resources Network in conjunction with the CHS. I’m not transcribing the whole lecture – I’d encourage anyone who lives in Calgary and area to attend any of Janet’s talks, as she has a ton of excellent information about gardening in the Chinook zone.
*On raised beds versus inground gardening: Raised beds have warmer soil and warmer temperatures at the growing height and are less susceptible to cold traps and early frosts; however, the soil in raised beds is typically drier due to wind and heat exposure, which makes watering an issue.
*On combatting dry soil (also weeds!) with mulch: Straw is an excellent mulch in raised veggie beds.
*On maximizing the limited space available in raised beds (and I’ll add that this goes for container gardening or any small space gardening):
- Sow fast growing crops
- Sow a limited number of crops
- Practice intensive gardening
- Sow crops with the largest production value per plant (my suggestion: zucchini! LOL)
- Grow vertically
- Use the edges of beds for plants that trail
- Grow crops that have more than one edible part
- Plant crops that you can harvest more than once per season
Above all, grow crops that you like to eat and can use up! I was laughing about this one because I’ve been guilty in the past of planting crops that I don’t necessarily need – for a couple of years now, I’ve grown beets and while I love them, we get about a gazillion pounds of them from our summer CSA share and by October I don’t really want to see another beet for at least a year. Why on earth have I been growing them as well? This year they were crossed off my planting list!
Another thing Janet recommended for raised bed gardening is something I’ve had on my mind for a couple of years now: using row covers and hoop tunnels. While construction was supposed to take place last year, I didn’t get around to it until a month ago (the story of my life, it seems!) but I’m quite pleased with the results! (I must thank my hubby for all of his help with this – for the build, of course, but mostly for listening to me endlessly blather on about it). 😉
We used hula hoops for the frame (they’re cheap and strong and already circular in shape, plus they come in a wide range of funky colours) – the ones we bought were just stapled together, so once the hardware was removed, they were ready to go. We had some old fibreglass tent poles which we took apart and jammed into the ends of the hula hoops to use as “stakes” to put them into the bed, but you could always do without that step. The poles served to give the hoops a lift, offering additional height – not necessary with most of the crops I’m growing but if you’re planting vertically, it may be useful.
The upper stabilizer is just a piece of PVC piping (again, very inexpensive), trimmed to fit the eight foot bed and fastened with zip ties. We debated about adding more piping to each end of the tunnel but decided the whole thing was sturdy enough to skip that step – although we may put them in later on if we feel it is necessary.
Here it is with the row cover in place…the fabric is water permeable (but hopefully not hail permeable!). I could have used any number of items to hold down the fabric – most gardeners buy pegs specifically for that purpose, but I had some large metal paper clips at home and so I just popped them on. They will rust, of course, but they work very well.
Do you grow your veggies in raised beds? What are your tips and tricks for good harvests?