How To Grow Sweet Peas Without Much Effort And Wasting Time

Let me be honest; I’ve missed you for this time while I wasn’t writing. I had to reorganize some things and to take care of my garden at the same time, so don’t hold this against me. Now I’m back with a whole new matter to discuss. Let me show you how to grow sweet peas.

The matter of this plant is not the same as with potatoes/sweet potatoes. Sweet peas are not for consuming and are used as decorative flowers. In any case, they are worth growing since their amazing scent will enrich your garden.


Why Should I Grow Sweet Peas?

Sweet peas

If you are following my blog for some time, you probably know that I love challenges. Also, I’m fond of trying to grow any new plant, just to see if I can do it. In case that you need some more reasons for growing this flower, I’ll cover it as well, but first, here are some general info on sweet peas.

  • The place of origin of sweet peas is the Mediterranean; Sicily more specifically
  • Today’s cultivars are made at the end of the 19th century
  • Modern varieties are pretty much the same as the original ones, only the stalk is stronger, and the flower is bigger
  • These flowers are annual growers
  • Consuming sweet peas can lead to a severe condition called lathyrism
  • Sweet peas need worn-out manure
  • Watering should be moderate and even
  • pH of the soil should be around 7.0-7.5

As it is shown, sweet peas are not demanding plants. Conditions required for these to grow are more or less the same as they are for the majority of flowers. With this in mind, let’s get to what will be needed to grow these flowers, shall we?

Which Tools And Material Are Needed?


If you have a garden or at least containers, it is highly likely that you have everything that is needed. Still, there’s no harm in listing material and the tools which will be required for successful growing.

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    Biodegradable containers
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    Worn out manure
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    Sweet peas seeds
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Everything is clear on this matter, except biodegradable containers. Namely, those are used for starting seeds, and many people might opt for using standard ones. I have concluded that sweet peas are highly vulnerable to moving, so planting them together with the pot is the best course of action.

Luckily, those containers are cheap nowadays, and if you prefer a hands-on approach, you can even make some on your own. Of course, if you are growing these flowers in containers, these paper containers won’t be needed.

How And When To Prepare?

How to prepare

I’m a strong advocate of proper preparation, as you may know, so this situation is no exception. For this growing to work, you will need a calendar or a good weather forecast. If you are well familiar with weather conditions in your area, you are all set.

Although sweet peas thrive in cool (but not freezing) areas, you can have them in your garden if you start in time. See when the last frost date is predicted, and go back for about six weeks. This is the time when you will start the seeds. The ground doesn’t need your attention for about two weeks before the last frost.

So, with the date set and seeds bought, take some of your homemade mixture and fill containers. Now, don’t plant the seeds right away. Leave them in a bowl of water overnight. This way the hard outer shell of the seed will be softened and the sprouting will be more comfortable. 

Poke a hole with your finger or a pencil, and plant a couple of seeds. The depth shouldn’t be more than half an inch. Use a bit of manure to cover the seed, and add water. For the next five weeks, they should grow so use the remaining week to harden them in a cold frame.

These couple of weeks, in the end, should also be used for working in lots of manure, and the depth should be about two feet. This is important because manure will break out the soil and make it fluffy and suitable for tender plants.

Moreover, if you took a climbing variety of sweet peas, you will need to support them. There’s an excellent instruction on how to make a trellis in an article I wrote about growing zucchini so that you can use it freely. If you place support before seeding, you are avoiding any possibility of damaging the roots later.

How To Transfer Sweet Peas To The Garden?


After everything is done, and the frosts are behind you, there’s some transferring in order. It is not a difficult thing to do and requires only a spade or a shovel.

The hole you make for plants should be slightly bigger than the temporary container. It should fit without a problem, and to be somewhat deeper so that the upper edge of the cup is below surface level. Don’t worry; we’ll add more soil later.

Watering is needed, right after transplanting, but don’t overdo it. The water is only required to help the soil settle better, and to accelerate the process of decomposing of the paper used to make containers.

How To Care About Sweet Peas, And Are There Any Pests And Diseases?

How to care

With germinated and transplanted plants, the worst had passed, and there isn’t much to do. Therefore, the list is rather short, so let’s breeze through it, shall we?

When it comes to overall conditions, you need to watch about two things. Water and weeds. There is a convenient solution for both of those problems, and that would be mulching. It prevents the weeds to sprout, keeps the moist within the soil and also lowers the temperature of the ground, which is another important factor.

Watering needs to be regular, and if possible, applied early in the morning. As always, apply water to the soil, and watch not to splash dirt on foliage, since this can lead to developing of diseases.

Speaking of diseases, there are several which can harm the plant, and the most prominent ones are powdery mildew and root rot. Both of those can be prevented with controlled watering, which means that you should set such rhythm of watering which will keep the soil moist but not clogged.

As for the pests, we have a standard set of aphids, snails, and slugs which can and will eat the foliage, if given opportunity. Now, the best way to keep them away is to either introduce natural enemies such as ladybugs in case of aphids or to remove the snails by hand. If nothing else helps, here are some tips on this matter.


So, here we are. This concludes about everything you need to know about how to grow sweet peas. There isn’t much effort required, so these flowers are great for beginners and those who want to have a new set of plants in their gardens.

As always, your comments are more than welcome in the comment section below.

2 thoughts on “How To Grow Sweet Peas Without Much Effort And Wasting Time”

  1. What’s the best position to grow the sweet peas ,I live 600 mts from the beach in QLD but we are very protected ,I was told to plant them on St Patties Day ,is this a good time,?
    Cheers Mary

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