SKU: 273811620
wildflower seeds yellow rattle

wildflower seeds yellow rattle Yellow Rattle (Rhinanthus minor) | Wildflower Seed

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Description

wildflower seeds yellow rattle Yellow Rattle (Rhinanthus minor) | Wildflower SeedPlease visit our sister site British Wildflower Meadow Seeds if you want less seed than advertised here or if your intended purchases come to under our 100 basket minimum. Yellow Rattle (Rhinanthus minor) Seed Yellow rattle (Rhinanthus minor) is an attractive, partly parasitic ("hemi parasitic"), annual wildflower of short grasslands. "Partly", because it photosynthesises. It's part of the Figwort family, and used to be widespread across the UK on

Please visit our sister site British Wildflower Meadow Seeds if you want less seed than advertised here or if your intended purchases come to under our £100 basket minimum.

Yellow Rattle (Rhinanthus minor) Seed

Yellow rattle (Rhinanthus minor) is an attractive, partly parasitic ("hemi-parasitic"), annual wildflower of short grasslands. "Partly", because it photosynthesises. It's part of the Figwort family, and used to be widespread across the UK on mostly neutral soils. Although it's still found across the country, including in the Machair, it's now much less common. It's appearance is variable; we think there are at least 6 sub-species of it in the UK.

Once Yellow rattle is established it can reduce the vigour of many grasses by up to 50%, thus benefiting other sown wildflowers - check out our blog on how to grow and manage it. Once it dies back, each Rhinanthus plant leaves a space for wildflowers to fill too. It does need full sun, however, and even Yellow rattle will be shaded out by more vigorous grasses on fertile soil - it's not the key to all a meadow maker's problems. Having said that, it can work brilliantly in helping to bring wildflowers back into old pasture, although of course it doesn't of itself reduce soil fertility. Yellow rattle also has other unexpected results. For example, ribwort plantain has learnt to retreat away from it, so does tremendously well in swards with a lot of Rhinanthus in as it fills in the space it leaves behind. Clever things, plants.

Rhinanthus is a helpful plant for pollinators too, particularly bumblebees and butterflies, although honeybees find its slightly complicated flowers difficult to access..

Rarity

For obvious reasons farmers were never terribly keen on Yellow rattle, although it's apparently tasty for livestock. That said, as it is an annual it's easy to mow out before it sets seed (when it rattles) in July. This was traditionally time to cut the hay; hence its synonym, "Hay Rattle". Its seed has notoriously short viability - you must sow from this season's harvest. It will also disappear in thick, unmanaged sward. The seeds are small and the plants unable to compete with surrounding vegetation early on. Nowadays, silage cuts over the summer stop it from seeding at all. Needless to say, it's much less common than it used to be a hundred years ago.

Appearance

Yellow rattle seeds are light flat discs, designed to be wind blown. They germinate from January and the seedlings become evident in early March, so that they steal a march on the surrounding grasses. Be careful not to mow them out! Once they've got going they are easy to spot, however. The leaves have serrated edges, a bit like a nettle, and in seedlings look rather stiff. The flowers look a little like yellow snapdragons (or little cockscombs, apparently). They're very pretty. The plants grow to around 50cm tops.

Buying

Yellow rattle seed must be sown from summer to the year end, as it needs to be chilled to trigger its germination the following spring. We recommend adding the seed to a newly established meadow after its first season. As it doesn't last the seeds need to be as fresh as possible. It also reacts badly to being badly handled - it's tricky to process properly. You need to be careful where you source it from. Our Rhinanthus seed is freshly harvested from meadows in various locations around England. We have it tested once it has been harvested and cleaned to check on the seeds' viability, and require viability over 90%. 

Sowing Seed

The time to seed Yellow rattle is between harvest and the end of December. Like some other wildflower species, it needs to get cold to trigger germination - "vernalization". Sow by hand onto existing sward, at a rate of up to 1g per square metre. It's expensive stuff, so you might want to use a lower rate or just seed some areas and wait for it to spread. It's really important that the existing grass is cut VERY short before seeding and, if necessary, chain harrowed or scarified to get rid of any thatch. Ideally you should see 50% earth. The seeding rate is very low, so you might want to add sand or similar to bulk it out. Once sown, either walk or lightly roll in, or use livestock to tread in the seed and make sure it's in good contact with the earth.

Management

Yellow rattle is a plant of short grassland - if the grasses surrounding it are allowed to grow long and rank it won't be able to compete. Once you've taken a hay cut, typically from July to late August, it's important to keep the grass lightly grazed or cut (removing cuttings) over the winter. Stop cutting in March, or you'll chop the heads off the young seedlings!

Our Seed For Sale

We sell Yellow Rattle seed from 500g, and sell smaller quantities at our sister website: BritishWildflowerMeadowSeeds.co.uk.

The Rhinanthus minor seed we sell is freshly harvested and processed to avoid damage and low germination. We also test it and require at least 90% viability from our harvesters. We currently sell seed from sites in Somerset and Dorset, Shropshire and the Midlands. These sites are generally calcareous or neutral grassland.

We typically deliver from August to December.

We strongly recommend reading up on meadows before buying Yellow Rattle seed. Although our Rhinanthus seed has high germination rates, you need to be careful about initial care and establishing an annual regime. Don't be put off though - once you get the hang of it it's pretty straightforward, so long as you follow instructions!

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SKU: 273811620

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taximom
Massapequa, US
★★★★★ 3
Dogs love it, hard to open and close
Size: Large, Color: Pink, Size: Large, Color: Pink
My dogs love this toy. It keeps them entertained a long time. Great calming toy for when you leave the house. Only issues is it is very hard to open and close. One of mine I had three people try to open and after fighting with it for about an hour I finally got it opened. Got 2, one a blue and pink one for each of my dogs. The blue is easier than the pink but still hard to do. Just not as bad. Can't close the pink all the way because it is so hard to close. The dog that uses it has trouble getting the stuff out of it. But it doesn't stop her from trying for hours to do so. Does get some teeth marks on it as well if they are aggressive chewer. Tried multiple eatable lubricating substances to try to make it easier but so far nothing fully worked. Aloe Vera has worked the best so far, but not great.
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Reviewed in the United States on February 17, 2026
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CS Niles
Grantham, US
★★★★★ 3
Good in theory, but didn’t fully deliver
Size: Large, Color: Green, Size: Large, Color: Green
My dog falls right on the size cutoff between the small and large Pupsicle. I initially ordered the large since he’s a strong chewer, but he had trouble getting everything out, so I ended up trying the small as well. There are definitely some positives. I think the design is better than a Kong. It stays upright, which makes it less messy. I also really like the mold for making the inserts, instead of having to fill the toy itself and freeze it. That said, there are two major design issues that impacted my experience. First, the all-rubber construction creates a lot of friction when screwing the bottom into the base, especially after repeated use. It gradually became harder to open, to the point where I was using coconut or avocado oil to try to loosen the threads. At one point I even needed a wrench and pliers just to get a better grip. Second, while it’s marketed as dishwasher safe (which I was excited about for cleaning), it seems to dry out the rubber and makes the threading issue worse over time. Unfortunately, mine is now permanently stuck shut and no longer usable. Overall, I like the concept, but the durability and usability issues make this a 3-star product for me. I’d recommend it with caution, especially if you plan to wash it frequently.
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Reviewed in the United States on April 23, 2026
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Belinda
Omaha, US
★★★★★ 5
Cute toy and well made
These are very cute and so far my dog has not destroyed them and he’s a very aggressive chewer. They are great quality. The colors are vibrant. Rocky loves the squeaker. They're light weight and the perfect size . He enjoys playing with them. We like to take them when he’s not looking and throw them to watch him go fetch them.
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Reviewed in the United States on June 3, 2026
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Jenn
Chelsea, US
★★★★★ 5
Great toys
Dog loves these toys, toys have a squeaker in the head and the legs are crinkle like.Very durable toys for dogs that destroy toys.
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Reviewed in the United States on May 28, 2026
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BattyBrat
West Palm Beach, US
★★★★★ 5
Love these!!
My dog absolutely loves these toys!! I’m grateful they don’t tear up easily because he’s really harsh on toys. Love that you can add treats or a water bottle to get more engagement and enjoyment. This by far is one of my dogs favorite toys. Great value for the money and great quality.
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Reviewed in the United States on May 5, 2026

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