Can I Plant Sunflowers In July

Can I Plant Sunflowers In July?

Forgot to plant your sunflower seeds, or hoping for an autumn display? Either way, you want to know if it is possible to plant sunflowers in July, so let’s have a look and find out!

Can I Plant Sunflowers In July?

You can plant seeds now and expect to see flowers before the first frosts arrive, but it really is cutting it close now so the earlier in July you can plant your seeds the better.

Sunflowers require two and a half to three months from seed to flower roughly speaking. So sowing them now we can expect them to flower around October time.

wether you are successful or not will depend a lot on the weather that year, if we have a miserable wet summer then you stand less of a chance.

If we have a really warm and sunny summer (but not a drought!) then you will have a much better chance. How soon the first frosts arrive will also affect how successful you are.

Sowing Sunflowers In July

Sunflowers don’t like root disturbance so direct sowing is preferred. This is one advantage of a summer sowing as the soil will be nice and warm and perfect for germinating sunflower seeds.

Once they have got going feed them regularly, this is advised will all sunflowers as they are hungry plants but it is particularly important with late sowings.

The more you feed the quicker they will grow (up to a limit, overfeeding can be a problem!) so weekly feeds can help your July-sown sunflowers to make up for the lost time.


The main pest problem you will face will be slugs, so do your best to keep them off your young seedlings, this will be a lot easier if we have a dry summer and much harder if the summer is wet.

Here are some of my top tips for dealing with slugs. You have two main routes with different strategies in both, you can kill them or you can stop them from getting to your plants.


So the main idea behind all of these methods below is to stop slugs from getting at your plants rather than killing them. You stop them from getting at your veggies or flowers and instead let them eat dead and decaying matter, as they should!

Slug Barriers

The idea behind these barriers is that they stop the slugs from being able to crawl over them. Slugs apparently will not go over a 90-degree angle, you can look it up on YouTube, a few people have tested the theory and it seems to hold.

So you set this barrier up along the perimeter of your beds or raised beds and it will stop the slugs from being able to get in. That’s the idea anyway.

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08/08/2022 08:20 am GMT

Slug Collars

This is the same idea as above but the collars go around individual plants in your garden.

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08/08/2022 10:32 am GMT

Homemade Slug Prevention

There are lots of homemade deterrents that you can apparently sprinkle around your plants which in theory should stop slugs.

Eggshells are a really common one that gets suggested all the time. Apparently, slugs don’t like crawling over the sharp edges of eggshells.

Some people say it works and some people say it doesn’t. I would say that it is worth trying though as it is not going to cause any harm.


Slug Pellets

The classic way to kill off slugs and it does work, there are however drawbacks.

Firstly the little blue pellets aren’t safe to have around if you have pets or young children who might digest them accidentally.

Next, there is the fact that they may be harmful to slugs’ natural predators like hedgehogs who eat slugs killed by pellets, therefore, ingesting the poison themselves.

And then there is the mess they leave, lots of dead slugs on the surface of your garden with nasty trails everywhere.


This is a natural and organic way to kill slugs. There are all kinds of nematodes, which are tiny little creatures that live in your soil, some of these nematodes kill slugs.

This is completely natural and is what happens in your soil all the time. By adding nematodes you are just increasing the number of the slug killing type.

One of the advantages of this method aside from the fact you don’t have to use poison is that part of the way the nematodes kill the slugs makes them burrow into the ground before dying, so no nasty dead slugs lying around!

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08/08/2022 07:37 am GMT

Torch & Bucket

The manual method, and as is often the case with the manual method, this is very effective but time-consuming. Wait until dark and go out into the garden with a torch, some gloves and a bucket and start collecting slugs.

This is best done on a damp night after heavy rain as then the slugs will be everywhere, happy hunting!

Slug Traps

You can set up traps to capture slugs and then dispose of them how you wish. There are lots of different ways to do this but one of the more popular ones is a beer trap.

With a beer trap, you set a container, usually a plastic tub of some kind, level with the surface of the soil. You want it level with the surface so slugs can easily get into it but you want the bottom to be deep, so they can’t get out.

You then fill the bottom with some beer, which slugs adore, and leave it. The slugs will make their way into the trap and either drown or be waiting there come morning for you to get rid of them.

One downside to this apart from all the slug carcases you will be getting rid of is that the beer is so potent that it can apparently attract slugs up to 200 meters away and therefore bring even more slugs into your garden than were there before!