Top Ten Vegetable Gardening Mistakes

vegetablefail

Not ready for Martha Stewart: our front yard vegetable bed.*

Some of the worst meltdowns and temper tantrums of my adult life have their origins in failed vegetable gardening projects. I thought I’d list off my top ten vegetable gardening misadventures  so that you don’t have to repeat them.

1. Not paying attention to soil fertility
This is my number one mistake. Most vegetables suck up a lot of nutrients. They need lots of compost and a source of nitrogen (fertilizer, manure or a rotation of beans). The difference between our prodigious straw bale garden, which got a lot of blood meal and fish emulsion to get it going, and our obviously depleted front yard raised beds highlights this common error. I  have to do more soil tests and remember to add nutrients (most likely nitrogen) before even thinking about planting veggies.

2. Planting at the wrong time of year
It took us awhile to find the right sources of information to guide us as to when to plant in our quirky Mediterranean climate (see this calendar and this book if you’re in SoCal). Seed package directions are useless here (what’s a frost date?). But, in fact, all climates have their quirks. Even two sides of the same town might have different planting dates. You have to find experienced gardeners and sources especially in places with either year round growing seasons or very short growing seasons. Ultimately, all gardening advice is local.

3. Planting things that don’t do well in our climate
Yes you can grow almost anything here, but that doesn’t mean you should. Carrots don’t like clay soils and warm temperatures. Cabbage gets lots of pests here. Some veggies are best to outsource to the professionals at the farmer’s market.

4. Not having a plan
My brain, to put it politely, is non-linear. If I were to overcome that cognitive flaw and plan out how much and where things should be planted I’d have both a steady supply of produce as well as a more attractive garden.

5. Not labeling plants
What kind of okra is that? I have no damned idea. Too bad when I want to plant it again next year. All it takes is a sharpie and a plastic knife to fix this problem.

6. Not keeping a garden diary
The two most important things to know are when something was planted and when the first and last harvests took place. With this data you can plan out next years garden more easily. Some other things to note: how did it taste and were their any pest problems?

7. Not staggering planting
I guess this is why canning was invented, but it really would be nice to have a continuous supply of veggies rather than a ton all at once. Stagger planting by two weeks, for most vegetables and you won’t have the feast or famine effect.

8. Growing things we don’t like to eat
We had a hell of a lot of turnip gratin one winter.

9. Missing the harvest
This is the most heartbreaking for me. Suddenly there’s a bunch of tasty heirloom vegetables ready to harvest. But . . . I’m going on a trip, or I’m too busy to cook . . . or I’m just too lazy to cook form scratch. It reminds me of a quip beekeeper Kirk Anderson made about beekeeping. Beekeeping, Anderson said, is like going to the bathroom, “When Mother Nature calls you’ve gotta go.”

10. Meltdowns
Vegetable gardening requires the patience of the Buddha. Crap is going to happen and you just have to accept that. Bad weather, bug infestations, marauding skunks and absentmindedness will intervene in even the best planned vegetable garden. I have at least two major meltdowns a year. Somehow, I don’t think that’s going to change.

Did I leave anything out? What mistakes have you made in your vegetable garden?

ETA: See Rule 11

*A note from Mrs. H. re: the top photo: Argh! Erik likes to be melodramatic with the pictures. Let me explain. This bed was indeed not a success. It needs soil inputs, and perhaps is hosting nematodes, so the seedlings didn’t thrive. This we realized way back in the spring. So we decided to just let that bed go for the rest of the summer and focus on the straw bales. That photo above is what a bed looks like after sitting neglected all summer long–it’s not the fruit of our best gardening efforts, or even the result of a pitched struggle. (But it did make a few tomatoes, bless it!) As soon as it cools down here I’m going to attend to that soil and bring it back to life.

Straw Bale Garden Tour Part II

In this video we take a tour of our straw bale garden as it appears this week. The vegetables varieties you see growing are Tromboncino squash, Lunga di Napoli squash (growing up into a native bush), Matt’s Wild Cherry tomato, Celebrity tomato, eggplant and Swiss chard. And just to take down my smugness a notch I also included a shot of an unsuccessful cucumber plant. Other than the cucumber, though, this is one of the most productive vegetable gardens I’ve ever planted. I’m now a big fan of the straw bale method.

The music is by Karaoke Mouse–“Shanghai Reggae.”

How To Stop Powdery Mildew

powdery mildew

My winter squash has what Mud Baron once described as “jock itch for plants:” powdery mildew. I’ve tried all kinds of notions and potions in the past, but this year I decided to see what the science says about powdery mildew. Our climate where I live in Los Angeles is, unfortunately, ideal for producing this vexing fungus.

IPM
Let’s begin with some condensed advice from UC Davis’ Integrated Pest Management page:

Preventative measures:

  • grow resistant varieties
  • find a sunnier spot for the vegetable garden
  • back off on nitrogen

Non-chemical approaches

  • sprinkle plants with water mid morning–add soap for more effectiveness
  • remove infected leaves promptly and dispose of them

Fungicides:

  • apply horticultural oil, neem oil or jojoba oil if the temperature is under 90° F. Do not apply any of these oils if you have used sulfur.

DIY Options
For home remedies I turned to advice from Washington State University horticulturalist Linda Chalker-Scott.

How about milk, widely touted as a powdery mildew treatment? According to Chalker-Scott the answer is yes it might work, but you may need to apply milk before powdery mildew appears. And the studies were done with whole milk, so the effectiveness of other kinds of milk have not been tested. Milk has not worked for me in the past, probably because I applied it too late.

How about baking soda? Chalker-Scott is skeptical. Baking soda has never worked for me.

Compost tea? I hate to bring it up as the topic is insanely controversial. I discovered a tempest in a compost tea pot when I tried to write a non-partisan magazine article about it. Let’s just say I ended up leaning towards the skeptical side when I looked at the evidence. Let me know if you think I’m wrong on this, especially if you can leave a link to a peer reviewed study.

Conclusions
What has definitely worked for me in the past is seeking out resistant varieties. I wasn’t smart enough to remember this fact so I’m going to try the soapy water approach and step up to something stronger if I have to. Part of my problem might also be too much nitrogen–my infected squash is in our straw bale garden and I had to apply a lot of blood meal to get it going. More sun would also help but that would involve cutting down a very large tree. I’ll update this post later in the season.

Let’s hear from you . . .
What powdery mildew treatment have you tried and how did it work? Leave a comment and join the conversation!

And I put the question out on the Root Simple twitter feed and got a few divergent opinions:

Christopher Kennedy ‏@ckpfunk Bonide’s Copper Fungicide for organic gardening. I spray every 14 days this time of year instead of every other w/ baking soda.

Alec ‏@Alec I’ve tried horsetail tea, sea-crop, baking soda, compost tea, and neem oil on mildew, but none compare to milk.

Alissa Walker ‏@gelatobaby I just sprayed with a baking soda solution seems to have done the trick so far. And removed all damaged leaves.

Alex Mitchell ‏@alexmitchelleg give the plants some air, water the ground not the leaves. Could spray diluted milk with water on leaves – never worked for me

Straw Bale Garden Update: Success!

straw bale garden

Ladies and gentleman, straw bale gardening works. I left town for a week earlier this month and, during my absence, the vegetables in the straw bale garden exploded in size. The Tromboncino squash on the left, is threatening to envelop the entire yard.  The tomatoes are equally vigorous and covered in ripening fruit.

straw bale garden zucchini

Zucchini is on the menu.

While it takes an input of outside resources in the form of straw and fertilizer, straw bale gardening is a great solution for beginning gardeners or for those cursed with bad soil. And the skunks that have decimated my previous vegetable gardens are unable to get up on the bales.

I’m considering trying another straw bale garden during our winter season. And I’m also pondering building boxes to put the bales in to make the garden look a bit neater.

Compare the straw bale garden to the depleted raised beds in our front yard:

depleted vegetable bed

I’ve talked to a lot of people about straw bale gardens since we started ours. Some things I’ve heard from other gardeners:

  • Some straw bales may be contaminated with herbicides. Do a bioassay before planting. Here’s some instructions (scroll down to the end of the article).
  • One gardener I met did not know that the bales need to be prepared by adding nitrogen–you can’t just plant straight in the bales.
  • Once the bales have been prepared you need to add fertilizer periodically. I’ve been adding fish emulsion every two weeks.

How is your straw bale garden?

And thanks again to Michael Tortorello whose article “Grasping at Straw” inspired us to try straw bale gardening.