Whether chickens can eat roses and whether they will are two different questions.
Can they? Absolutely, unless the plants have been sprayed with any kind of chemical, of course.
Will they? That depends on two things: the chickens and the rose.
Personally, my chickens won't touch rose petals. Picky? Yep.
Other people's will. But it does seem to depend at least partly on the rose.
There's some very limited evidence that darker coloured roses - deep red, for example - which have an aromatic smell, also taste more flavoursome.
Are rose petals good for chickens?
You'll find information around the internet claiming that rose petals are full of vitamins and minerals and that rose water, made from steeping the petals in water, can cure everything from eczema to dementia.
In fact, they're 95% water and have very limited nutritional benefit(1).They do contain a little Vitamin 'C' and they certainly won't harm your flock.
But, at least as far as chickens are concerned, that's about it.
So if rose petals are of no real value for chickens, why do I include roses in this short video?
Rose petals may be of no real benefit, but don't write the rose off yet. Because the fruit of the rose - the hip - certainly is.
Rose hips are the small, red or orange fruits left on the plant after the petals have fallen. You'll see them in hedgerows in the autumn and winter and, if you're lucky enough to have the right type of rose, in your garden.
They don't happen on all roses, though - modern varieties tend not to produce them. Look in particular for the large, rounded hips of any variety of the 'Rosa rugosa', also known as the 'wild', 'beach' or 'Japanese' rose...
...and the plentiful, more elongated hips of the 'Rosa canina' or dog rose.
Both these varieties are the closest to a wild rose, and both produce health-giving hips in abundance - the dog rose in particular.
If the hips are left on the plant you'll see wild birds eating them, and with good reason. Their nutritional value is immense.
And both varieties have beautiful flowers all summer which attract bees and butterflies, before putting out their hips in the autumn.
Again, massive claims are made for them in terms of human value: they're said to ease the pain of arthritis, soothe colds (ever have rose hip syrup when you were young?) and regenerate skin.
But what proven benefits do rose hips have specifically for chickens?
At the very least, rose bushes of any variety can provide welcome shade for chickens during the heat of the summer - and the chickens tend not to eat them, which is always a bonus.
But the real benefit is in using the hips as an addition to their winter food rations.
The most important function of vitamin 'C' in poultry is to clear up unstable cells which might otherwise lead to cell breakdown and critical illness.
So it's an antioxidant.
So it's perhaps not surprising that Rosa canina (the dog rose) has been authorised by the European Parliament as a natural supplement which it's safe to add to livestock feed.
It's right to say that chickens cope better with cold than they do with heat. Keeping cool in summer is one of their biggest problems.
But there can be issues in winter too.
Almost all the food they consume in winter is used to maintain their body temperature and combat the stress of cold temperatures.
So body growth and egg-laying slow down or stop and the immune system becomes much less effective(2). Studies also show that the amount of blood cholesterol a chicken produces in cold conditions rises(e.g. 2, 5).
"The findings of the current study revealed that oxidative stress in broilers induced by cold weather conditions can be reduced by the use of rosehip in broiler rations".
But the studies also showed the amount of rosehips added to the feed is critical.
The studies showed clearly that chickens who did best were fed either ten or twenty grammes of rosehip per kilo of feed (a maximum of about half an ounce to each 35 oz of feed).
Chickens fed more than twenty grammes actually decreased their body weight - and chickens need to keep body weight in winter to combat all the stressors of cold weather.
It also created pro-, rather than anti- oxidant effects.
So keep your rose hip levels in the low to medium range.
Traditionally, rose hips should be harvested after the first frost of autumn (fall) when the rose has had time to add some sugar to the hips. Before that they can taste bitter.
The frost will make them bright red, softer than before and with a sweeter flavour.
These days, though, climate change means that some regions won't have a frost until later in the winter, which runs the risk of the hips turning brown and becoming mouldy.
So if you're not forecast to have any frost, pick them when they look red and plump, and are slightly soft to the touch. Then put them in your freezer for 24 hours.(6).
Allow to defrost naturally, then follow the instructions for drying out as below.
They should twist off the bush easily but if not, use scissors, as close to the bottom of the base of the hip as possible.
Trim off the stems and the dead blossoms before laying them out to dry.
You'll see information on blogs saying you need to de-seed the hips before feeding them. This is for human consumption - the hairs surrounding the seeds are tough and can cause stomach problems.
Chickens aren't people and don't have that issue, so you can feed the complete hip.
However, hips fresh from the plant tend to be quite hard. They'll be better accepted if they're dried and ground into a powder.
Don't cook them in water - the vitamin 'C' leeches into the liquid and you'll lose the benefit.
Drying them is very simple. No need to cut: spread them whole, in a single layer on a plate or tray. Don't use aluminium which, like water, can reduce the vitamin 'C' content. I keep it simple by using old ceramic plates.
To dry naturally, allow them to sit in the sun until they're a darker shade of red, look shrivelled and are hard to the touch.
If it's too cold outside to have any hope of your carefully harvested hips drying out, spread them in a single layer on a tray lined with baking paper.
Dry them in a dehydrator, or in the oven, on the very lowest setting. How long they will take depends on their size, but anything between 5 and 7 hours in an oven is about right.
After drying out, the hips should be hard and brittle to the touch.
Once they've reached that stage they can be stored in an airtight glass jar and left in a cool, dry place until you're ready to use them.
It's always best, if you can, to harvest hips from rose bushes grown in your own garden. Alternatively, pick them from a local hedgerow you know has been allowed to grow naturally, without the use of pesticides.
But sometimes that's just not realistic. In which case it's possible to buy ready-dried hips, either locally or online.
Make sure they're organic. The last thing you want to do is add chemicals into your chickens' diet.
If you're lucky, you'll be able to buy dried hips at a local market, in your feed store or from a herbalist. Keep a lookout for them from mid-autumn (in the northern hemisphere mid September) to mid-winter (around the end of December).
The hips should be a dark red in colour and not have stalks or leaves attached.
Buy a good, organic brand which doesn't have added chemicals.
These hips are a good example (this is an "affiliate link", which means that if you click and buy something, I earn a small commission at no extra cost to you).
After you've harvested and dried the rosehips, simply grind them into a gritty powder using a pestle and mortar.
Then add to your dry chicken food at the rate of between 10 and 20 grammes per kilo (about half an ounce to each 35 oz) of feed.
Be careful with your measurements. Remember the study results: even a little over this amount can actually have negative effects: 30 grammes to one kilo (one ounce to 35 oz) was shown to have pro-, rather than anti- oxidant effects(2).
A lot of "facts" you'll find on the internet are often people's individual views, based on inaccurate information repeated from poor quality sources.
The information I provide in this article and others is based not just on my own experience, but on evidenced facts from scientific, peer-reviewed research and books from highly respected and experienced poultry keepers such as Gail Damerow.
Some of the trusted sources I have used in this article are these.
1. Lundman, S, and Corleone, J: What are the benefits of eating rose petals? Pub. Livestrong, 2019.
2.Tekeli, A: Effect of rosehip fruit (rosa canina) suupplementation to rations of broilers grown under cold stress conditins on some performance, blood, morphological, carcass and meat quality characteristics. Pub. Journal of European Poultry Science, 2013.
3. Bown, D: Encyclopedia of herbs and their uses. Pub. Royal Horticultural Society, 1996.
4. Szalay, J: What are carotenoids? Pub. Live Science, 2015.
5. Bohm, V., Frohlich, K. and Blitsch, R: Rosehip: a new source of lycopene? Pub. Molecular Aspects of Medicine, 2003.
6. Gardening Know How: When and how to harvest rosehips.