My garden has many species of bees that pollinate my roses. They can be killed off by pesticides used to grow roses. While it may seem convenient to use "all in one" products, I prefer to only apply what is necessary to control problems in my garden.

My guesses are simple ones. Where they pollinated or do you have an insect such as Japanese beetles or chafer beetles etc. In years of heavy Jb activity here they damage the hip. So they can't ripen. Frankly I'm really tired of JB's. I have three roses that produce very tasty hips if the beetles would leave them alone.

I should add that I do not use chemical insecticides in my garden. In the other rose bushes I only use potassium soap to combat pests. On the rough ones, not even that. I do not apply anything for fear of damaging its leaves. Some well-manure dung at the beginning of the season under its branches and always the ground covered with layer of padding composed of bark of wood.

You mention the weather as an explanation for the failure of the rose hips. But not one? Is it normal for these two Rugosa Hansa not to have produced a single rose hive in three years?

At this point it is already hot, but when they began to dry it was still cooler spring. It was not overheating.

As for insects, my garden has a very large amount. There are no pollination problems here.

It is true that this spring I have had beetles ... but the other springs that were not the beetles?

I am very confused and disappointed.

Maria

It is possible that your Hansas are not Hansas. Sloppy naming is not an unheard of thing.

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Also: "Yes, you should get another rugosa to fertilize your DD: rugosas are notoriously self-infertile."

The above quote is from:

http://forums.gardenweb.com/discussions/2139197/no-rose-hips-no-seeds-to-harvest

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"Re: Species-Modern Crosses

Going off on a tangent...
I can't get my Hansa to set hips at all."

Above quote from:

http://rosebreeders.org/forum/search.php?keywords=hansa&terms=all&author=&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search

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"by henry kuska » Fri Aug 31, 2012 3:48 pm

Hansa as mother problem, "Interesting you bring this up, since I'm having trouble in the last couple of years to get 'Hansa' hips to mature to a size where the seeds are viable. Also, I note the ends of the branches having hips sometimes die back and this, of course, negatively affects the maturing of the hips. It's the strangest thing."

The above quote taken from:
http://rosebreeders.org/forum/viewtopic.php?f=2&t=46831&p=46866&hilit=hansa#p46866

I had written this in 1999 to a group of hybridizers in an e-mail:

"
I had observed that all of my open pollinated seedlings of
Hansa seemed to

vary widely from Hansa.
This suggested to me that Hansa may be self

sterile, and that the bees had brought a variety of pollen
to Hansa.

Normally only the species roses are self sterile. I let it go at that until

I read this article:

"Hybrids of the Circumpolar Rose

By PERCY M WRIGHT, Wilkie, Saskatchewan, The American Rose
Annual, volume

21, pages 41-42, (1936).

A new range of hardiness in roses comes with the
development of

hybrids of Rosa acicularis, the arctic or circumpolar rose,
which in North

America comes relatively far south in districts of severe
climate. Apart

from the late Dr. Van Fleet's use of R. Engelmanni (a
subspecies perhaps

less closely related than has been thought), and the crosses
with R. rugosa

made by F. L. Skinner of Dropmore, Manitoba, R. acicularis,
in my knowledge,

has not before successfully mingled with the domestic roses.
It has

obstinately refused to hybridize with the tender races, as
Hybrid Teas, for

example.

The female parent of my crosses was the Rugosa variety
Hansa. This is

probably not a hybrid at all, as reported, but a pure strain
of Rugosa,

related to Rugosa as the double-flowering strain of R.
blanda, known as Mrs.

Mina Lindell, is related to Blanda. The ordinary Rugosa dies
to within a few

inches of the ground in most winters, but Hansa is so much
hardier that in

my plantation it has lost but a little of the greenest wood
in ten years. It

has thirty-nine petals, and is that miracle, an everblooming
hardy rose. The

color is a violet-red. .................."

---------------------------------------------------------

It appears (to me) that he based his conclusion on the observation that it
was so hardy. it must be a species. If he is correct and it is not a hybrid it could be self sterile.

I no longer have a copy of this paper: "In 1986 P. Cole and B. Melton published a paper which investigated the ability of rose pollen to fertilize flowers on the same bush ( .Cole, P., Melton, B., J. Amer. Soc. Hort. Sci., volume 111, pages 122-125, (1986). The diploid species were all highly self-sterile. None of the 23 diploid specimens exhibited over 4 % fertility and 18 of the 23 produced no self-set seed. They also studied the fertility with pollen from another plant of the same species and found that the diploid group was 50 times more cross-compatible than self-compatible. For roses of higher polyploid level 12 of the 16 studied were no more self-compatible than the diploid group."

There are two roses I have. To be sent a badly labeled can be normal. But two?

Rosa rugosa 'Hansa' y Rosa 'Wild Edric' · More Info

Rosa rugosa 'Hansa' y Rosa 'Wild Edric' · More Info

Rosa rugosa 'Hansa' y Rosa 'Wild Edric' · More Info

Your Hansas are growing beautifully, flowering excellently, but not setting hips.

Why not plant a variety of well documented hip producing rugosas and/or hybrid rugosas. You may want to start making your choices from: Rosa rugosa 'Rubra', Rosa rugosa var. 'Alba', or the hybrid rugosa, Blanc Double de Coubert.

If they set no hips within a reasonable amount of time, you can proceed with a different plan to grow hip producing roses, possibly from a different species of rose.

Moses

My ruggeds have been planted for three years. Is it possible that you should spend some more season to get your hips prosperous?
The rough roses produce hips in their first and second season after being planted?
Would you tell me a variety of rugged rose that has double flowers and that there is assurance that their hips will prosper?
Thank you very much for your comments.
María.

If memory serves me right, doesn't

https://books.google.com/books?id=RR_tPgAACAAJ&dq=rugosa&hl=en&sa=X&ved=0ahUKEwjIpOycjrvUAhVC4IMKHewWC1kQ6AEINTAD

include information about whether hips are formed? (At 80 I am into advanced retirement and no longer have my rose library.)

Nothing sets hips as large or as abundantly as Rosa rugosa Rubra and the white version, Alba.

The hybrid rugosas produce hips less abundantly and some, not at all.

Blanc Double de Coubert, is a double white, but does not set hips as abundantly as the species rugosa.

Schneekoppe (Deutsch), also known as Snow Pavement, sets red hips, but also not as abundantly as the species rugosa. I mentioned Schneekoppe because it is one great rose!

The flowers are light/medium lavender in bud, and turn white with a lavender blush when open. The open blooms are cupped, a la David Austin roses, which is unique among hybrid rugosas, making this a great hybrid rugosa. It grows about .8 meter high and is rather upright, sprawling very little.

It makes a nice stand alone centrepiece bush....looks very good by itself, and also can be placed within a bed of roses if you choose.

I once had a rose garden dedicated almost exclusively to hybrid rugosas. I trialed about 30 different varieties. My top three favorites were/are: Schneekoppe, Roseraie de L'Hay, and Henry Hudson. I did not grow them for their hip production. If I did, I could be of more help to you and tell you the hip producing capabilities of each variety, at least how they did for me. Spent flower clusters were routinely dead headed.... no chance to make hips.

Moses

My favorite commercial hybrid rugosa is Will Alderman. The best I can say about my own hybrids is that they are about as good (or almost as good) as Will Alderman.

http://www.helpmefind.com/gardening/l.php?l=2.6575&tab=32

You may have more luck in the formation of rose hips with summer flowers. In any case I will not eliminate them to give opportunity for the fruits to form.

It would be a great disappointment for me that even in the fall I did not produce rose hips. I think with three years they are quite mature. If they do not make hips this year, they probably will not.

It is true that the flowers are beautiful and the aroma exquisite. I will settle for that ... Well, I must say that they also have a beautiful autumn when their leaves acquire yellowish and coppery colors.

Thank you all so much for your help. Regards, friends.

Maria.

Your garden is beautiful, with or without the hips. Alaska was too cold for hips for my Hansa, and a California friend did not get hips on hers either, and I wondered if it was too hot.