15 Common Gardening Mistakes to Avoid

Up to 90% of new gardeners give up because of these common gardening mistakes. Here are ways to avoid them, and to successfully grow your own food

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When I started up my plot at our allotment site it was a grassy field with baling twine outlining plots. Everyone was a beginner and the enthusiasm was thick in the air. It had taken hard work and determination to get the site going and everyone was excited to finally start. That first year the grass was turfed away from many of the plots and gardens started taking shape. I was so excited to be a part of it.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #gardeningtips

Within about eighteen months I found myself graduated from newbie allotmenteer to association secretary. I then held that role for eleven years before someone else was able to give the role a try. Within that time, ninety percent of the people who started up that first-year with me leave. In the time since then, I’ve witnessed half of all new gardeners throwing in the spade within two years. After watching folks come and go, I have an idea of what their challenges are and have advice that might keep beginners passionate about growing. These are some of the common gardening mistakes I’ve seen and advice on how to avoid them.

Common Gardening Mistakes

Before we continue, please consider the following as my opinion as an experienced gardener. I’m a fan of no-dig gardening, organic gardening practices, and not slavishly tending a plot every day. I love my garden, but I think that you’ve got to have a life too! I’m sure that other people would have a different list of what they think the most common gardening mistakes to be. If you have any biggies to add, I welcome your comment at the bottom of this piece.

The mistakes I continue on with are usually easily avoided by changing perspective, keeping things simple, or learning about a particular topic. I truly believe that if you’re able to tackle these garden challenges then your success as a gardener will be on the rise!

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden

1. Not growing things you like to eat

It sounds ridiculous to grow things that you and your family won’t eat but it’s amazingly common. Whether it’s brussels sprouts or turnips, make sure you’re not wasting space and time growing veg that’s just going to be wasted.

Every year I see so much food being wasted at our site. Cabbages left to rot and swedes and beetroot swelling to massive sizes and becoming too woody to eat. Look at your recent shopping list, think about your favorite recipes, and make a to-grow list based on what you know will get eaten.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #gardeningtips
If you grow things you like to eat then they won’t get wasted

2. Sowing seeds too early

You decide what you’d like to grow and get a hold of your seeds. Clearly stated on the packet is a sowing time which may stretch across two or three months. It could even say that the seeds can be sown year-round.

As a beginner you’ll want to get those seeds growing and start sowing them at the absolute earliest time. Can be sown March-May? You might be tempted to put them in the soil on March 1st. If they don’t grow due to it being too cold you’ll be sorely disappointed so check to see if there is information on sowing times for your Hardiness Zone and find out when the right time to start sowing outdoors will be for you and your soil. Here’s more on the first seeds to sow.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Learn when you should sow seeds by understanding your gardening zone

3. Sowing seeds all at once

Take advantage of succession sowing. All this means is that instead of sowing all the seeds in your packet at once, that you sow a little every few weeks. Think of sowing a long row of lettuce and watching them all grow beautifully and then mature all at once. You’re not going to get through it all before they start bolting.

This is a common gardening mistake I’ve made myself and you can’t imagine how sick you’ll be of eating salads, spinach, zucchini (courgettes) or anything else. You’ll be giving your hard-earned harvest away because it’s just not possible to take another look at it. Try to sow little and often for crops that don’t store well or that you’re not planning on preserving or freezing.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
That year that I grew WAY too much lettuce

4. Not using mulch

When I first started gardening I completely ignored the use of mulch. Mainly because I didn’t understand it and why it’s important. Mulch is any organic material that you lay directly on the soil to feed it with nutrients, protect it from erosion, stop weeds from sprouting, and to lock moisture in. If you don’t use mulch then your garden and back will probably suffer for it. I see it all the time in our allotment.

The mulch you use will be different based on your climate. Various types include straw, mushroom compost, garden compost, seaweed, cardboard, and well-rotted manure. I tend to use the latter for most of my gardening because it works in my wet and cool climate. One year I tried using straw, popular in drier climates, and ended up with about a million slugs making themselves at home underneath. Ask gardeners in your area what they’re using and begin with that.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Year one on the plot and mulching my garlic with spent mushroom compost

Last year I started no-dig gardening, which means not digging the soil at all and using lots of mulch. It was my best gardening year ever. I did less weeding, watering, and work, and my harvests were better than any previous one. All I did was lay a couple of inches of compost on the soil and plant directly into it. Each autumn I’ll continue to add a couple more inches of compost and that’s it. You can even sow carrots directly into compost laid in this way and they will not fork.

5. Trying to clear land by hand

If you’ve taken on a neglected plot, or are starting from scratch, the beginner will often try to clear it by hand. It’s back-breaking work and honestly, it’s a lot better to use weed suppressants and mulches.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
This is how I started my current plot. Solarizing it with black plastic killed weeds without having to use harmful chemicals.

You can reduce the amount of weeding you’ll need to do by stopping weeds from growing in the first place. The best and most eco-friendly way to do this is by using compost, seaweed, natural fiber carpets, heavy-duty plastic sheeting, and other weed suppressant material to cover the soil.

6. Ignoring situation

If your garden only gets partial sun then you might have to grow edibles that will tolerate lower light conditions. On the other hand, you could have a plot that receives sun all day long but it’s exposed to high winds and other environmental challenges.

Find out which direction your plot faces, how much sun it gets, if there are any possible frost pockets, and if you need to build windbreaks before you start planting. A little prior planning can make the difference between a disappointing harvest and a bountiful one.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Learn which tactics and tools can help save your crops from pests. Here, using Enviromesh to keep carrot root flies off my carrot crop

7. Not learning about pests and weeds

Pests and weeds will be different from site to site and understanding what you’re up against will be key in succeeding at growing your own. The best thing to do is when you begin gardening is to ask your neighbors about what they’ve been dealing with. Also, ask them about their most successful ways of combating weeds and pests. You can then do further research and find if you’d like to try a different solution.

At our site, there is one main weed that affects everyone – dock. The roots of this plant are long and thick and even the smallest piece can sprout a brand new plant. So imagine what happened when a few of our new members decided to rotovate their plots. Their entire patches soon became infested with this tough weed leading to plot abandonment. Not the best outcome for either allotmenteer or allotment association.

A personal challenge of mine over the years has been combating Carrot Root Fly, which is a fly that lays eggs on the ground at the base of carrots. The larvae, when hatched, burrow through your carrots making them completely inedible. I found that laying Enviromesh over the top of my carrots is extremely successful in keeping these pesky insects away from my crop.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Understand and feed your soil and you’ll have a bountiful garden

8. Not understanding soil

There are many types of soil but there are two main ways of categorizing it. The first is classing its acidity levels into ‘Acid’, ‘Neutral’, and ‘Alkaline’ and these will determine which plants will like the taste of your soil and if they’ll grow well. More on the importance of testing for soil pH

Soil consistency and particle types are described as ‘Clay’, ‘Chalk’, ‘Loam’, ‘Silt’, ‘Sand’, and ‘Peat’ and each of these will have attributes that describe how free draining and nutrient-rich the soil is. You can find out what type of soil you have with a Soil Test Kit and by having a look at the soil itself.

If you find that you have challenging soil, you can amend it by adding Garden Lime and Mushroom Compost to neutralize acidity. You add higher acidity manures and compost to your soil to make it more acidic. To reach your ideal soil type may take years so the alternative is to build raised beds and fill them with soil and compost that reach your (and your crops’) expectations.

No-dig gardening, where you simply lay mulch on the soil, is often all you need to do to have great garden soil. It’s all about feeding and protecting the soil and as a result you’ll have bountiful harvests. A book I recommend on the topic is No-Dig Organic Home & Garden.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Perennial fruit and veg grow back again every year

9. Not growing perennials

Perennials are plants that regrow again every year and so require less work and time. I actually don’t grow spring onions any more because I discovered Welsh Onions which are like giant chives. They can be used as spring onions, taste virtually identical, and you can rest assured that they’ll come up year after year with very little interference from you. Other perennial vegetables and fruits you can grow in a temperate garden are asparagus, raspberries, and rhubarb. These are my favorite perennial veg.

10. Working too hard

I’m guilty of this one too. You head to the allotment or into the garden and end up spending a full day digging, weeding, tidying, and planting, and by the end, it looks great. Though your body may not function properly for a few days. Then you get caught up in life and work and two or three weeks pass before you’re able to work in the garden again. You visit your plot and it’s like that full day of work never happened.

Weeds are everywhere, your seeds don’t appear to have grown (probably because of pests), and you feel absolutely deflated. Getting into a routine of working in your garden for thirty minutes to an hour a few times a week is far better than a full eight hours every couple of weeks. You’re better able to tackle any challenges as they arise and you spare your body from overexertion.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Work on a piece of the garden at a time

11. Taking on too much

Sometimes when a plot becomes too much to easily take care of then I see folks giving up completely. It’s natural to want to have a large plot of land to grow on. However, unless you’re retired or don’t work a conventional job then it will be difficult to maintain.

So opt for a smaller space at first and then expand after that first season if you feel you could handle more. Another alternative is to find a friend who’d like to garden with you. You could take turns working on weeding, pest control, staking, watering, and all the other tasks that contribute to a fruitful growing space.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Achocha taste like a mix between cucumbers and sweet peppers. They have a lot of seeds inside that need removing but those spikes are velvety soft.

12. Shying away from experimenting

Sticking with bog standard vegetables and methodology is one of the most common gardening mistakes. This is something that both beginners and more experienced gardeners should consider. Growing tried and tested varieties is great, especially if you’re growing what you like to eat. But as a green thumb, you have the opportunity to grow more unusual veg though. Using them in new dishes can put a bit of a spark into your gardening and meal plans.

If gardening isn’t fun and creative then it becomes a chore. Experimenting with different crops and techniques can put the spark into your growing experience. Unusual varieties I’m planning on growing this year are Oca, Purple Cauliflower, and achocha. Here’s more unusual vegetable inspiration.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
You only need a few good tools to get started

13. No one to go to for advice

When I first started getting into growing, none of my friends were gardeners. That meant that I didn’t really have access to other people’s experiences, advice, or help. For me, starting my blog and Instagram proved invaluable in meeting other people with the same interests and to become a better gardener. If none of your current pals are growers,  join gardening Facebook groups, forums, and make gardening friends at the allotment. It’s amazing what you can learn from others and their own stories will help motivate you to continue growing-your-own.

14. Spending too much money

One of the most common gardening mistakes is throwing a lot of money at it initially. It so easy to go overboard on spending and before you know it you’ve spent hundreds on fancy garden tools, gardening clothes, plants, and magazine subscriptions. If you’re aiming to grow fruit and veg to save money this can be a very bad thing.

Books – look at the selection of books at your local library first. The local one here has an excellent selection and if you find a book that resonates with you then try to find a used copy of it online. Chances are that you’re going to take it to the garden with you and get it dirty anyway. My favorite gardening reference is The New Self-Sufficient Gardener by John Seymour.

Tools – there are only a few things that I feel you absolutely need to get started growing your own and these include high quality:

I’d probably tack a wheelbarrow onto that list too but it’s not 100% essential if you have Garden Tubs to haul weeds, crops, plants, and anything else you need to your plot and back again.

As for clothing, invest in a pair of durable wellies (rubber boots) and thick-soled boots suitable for garden work. The rest should just be comfortable clothes you already have and that you don’t mind getting stained or damaged.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Gardening events are a great way to meet like-minded people and save on seeds.

Saving on Seeds

You can save a lot of money on seeds if you attend or organize a Community Seed Swap. The way it works is that everyone brings in extra seeds and swaps them against new ones. Beginners with no seeds are encouraged to come too and to leave a small donation (20p per packet) if they take any seeds or plants.

If you can’t find a seed sharing event in your area there are also online seed swaps and gardening society discounts with seed companies. Every year I arrange an allotment seed order for our members and packets of seeds are often half or a third the price as you’d find being sold commercially. You can also find free seeds at seed swaps, in gardening magazines, or with friends and family.

In a recent trip to see how prisoners at our local prison grow food, I found that many of their crops were from free seeds from magazines. They were also collecting seeds from kitchen scraps — all the peppers you’ll see growing in the polytunnel in the video tour were grown that way.

Save yourself time and effort by avoiding these 15 common gardening mistakes. Includes tips on spending, what to grow, and when to grow it #vegetablegarden #startagarden
Growing plants from seed will save a lot of money

Saving on Plants

This is where you can end up spending an absolute fortune. It’s easy to be tempted by plants in a garden center and sometimes it’s actually more economical to buy plug plants than packets of seeds. However, each plant you buy can really add up to a lot of money and in most cases, it’s more cost-effective to grow from seed.

Plug plants that can save you time and money include tomatoes, aubergines (eggplant), and lavender. The latter is great for attracting pollinating insects like bees and is edible too. For more cost-saving tips, read this post on Gardening on a Budget.

15. Giving up

You might feel overwhelmed, defeated, or maybe you’ve had a change in personal circumstances. Take a break maybe, consider your options, get help from friends, but just keep at it. Every year in the garden is different, and there will come a time that you really have some bad luck. Stick to it though and know that everyone encounters challenges in the garden. Try to keep yourself focused on successes rather than failures and just keep on growing. You might have made every one of these aforementioned common gardening mistakes, but you can learn from them and make next year even better!

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  1. Thanks for this article! Do you have any other articles, videos, or book recommendations for a complete beginner?

  2. So glad I found this website. It is full of information of real interest, clearly written, and looks gorgeous. I look forward to receiving my weekly update!

  3. Thanks for the great ideas! Just starting out in our garden, got a proportion of the garden with no direct sunlight so will be certainly looking for low light veg and fruit.
    Thanks again!

  4. Jack Dominique says:


  5. Jack Dominique says:


    1. Strawberry plants should be replaced every three years to maintain productivity. The same goes for in the garden as it does for the strawberry planter.

  6. Jack Dominique says:


    1. They like soil rich in nutrients and moisture and appreciate top dressings of manure and compost.

  7. Mini 4 Soil Block Maker have you ever heard of these?

  8. I can add one item to your list of advise. Never let your spouse talk you into getting more plants at a nursery. This year my husband was afraid that the tomato and pepper plants that I grew from seed were too small and would not produce very well. So he was determined to get tomato and pepper plants from a nursery over my objections. I had enough of my own plants to take up all the allotted space in our garden. Of course his plants ended up getting the tomato cages that we had and mine went without. So now my garden is overcrowded and the nursery grown plants are taking over my garden. The tomato plants are too big and heavy for the tomato cages. I have been trying to hack through the extra foliage of the plants so my plants can get light and so I can see if tomatoes are getting ripe. I finally got him to see the damage and tangled mess his determination has caused. Next year if he wants nursery stock he can also build more beds to grow them in. It is my garden and I will never get bullied into putting more plants into the space than I am willing to put in.

    1. So true! It’s common to over-plant and to feel bad about thinning plants out. Thanks for sharing Kathy :)

    2. Linda Brown Shields says:

      I love it…In this case, a woman who has boundaries and enough self-love to stand in them;0)

  9. Great site, useful ideas. My next great project is to construct a hydroponics strawberry system in a small space approx. 100 plants. I also have over 300 bee hives hat keep me busy. Thanks for the great post.

  10. Very useful post. Thank you.

  11. Brilliant article, thank you. I have pinned it for later reference as I am about to embark on my first ever vegetable garden. The most I have ever grow, produce-wise, has been a few salad greens in pots outside the back door, and a failed attempt at broccoli (the heads were about the size of a ping pong ball – nowhere near big enough to feed more than one person) :-)

  12. steve mercer says:

    Based on our site. Don’t put up a shed, build a patio and buy a seat until you’ve got the soil right and decided you can do the work.
    Though if you give up it’ll benefit the next plotholder.

    1. Or just an old log will do until you figure out if it’s for you or not. To be honest, a lot of our allotmenteers give up and leave their tools in our communal shed when they go – sheds aren’t permitted on site (planning permission issues) but I’m sure there would be some of them too.

  13. abhimanyu bhatia says:

    love going through these posts, very informative and motivating

  14. A brilliant round up of potential pitfalls, it should be compulsive reading for newbies and disenchanted gardeners.

  15. Having friends that garden is essential…you can trade ideas, seeds and have trusted buddies to water/pick your garden when you are on vacation!