Make sure when gathering rose hips to not use any from bushes that have been treated with pesticides not labeled as safe for food crops." While rose hips and all rose parts are not toxic, ingesting any type of plant can cause adverse symptoms in pets, states Pawprints and Purrs, Inc. Any of the treatments you use in your garden for the health of your roses can provoke an inflammatory reaction when injected by a scratch or prick. Symptoms associated with plant ingestion include diarrhea, vomiting and depression, and usually are mild with non-toxic plants. Bioflavonoids are found in the rind of green citrus fruits and in rose hips and black currants. Possible Side Effects. Bioflavonoids have been used in alternative medicine as an aid to enhance the action of vitamin C, to support blood circulation, as an antioxidant, and to treat allergies, viruses, or arthritis and other inflammatory conditions. Rose hipsâ vitamin C content is not only significant, but it is extremely bioavailable due to the amount of rutin that complexes the ascorbic acid. Theyâre created by a tiny wasp that lays her eggs in the stems of rose bushes in the spring. But another problem may be with the variety of rose that you are growing, since all do not produce rose hips in the colors you are wanting. Rose hips also contain both alpha- and gamma-tocopherols. So can various bacteria and simple dirt. Harvest rosehips from pulling them directly from the rosebush. Any rose that hasnât been sprayed with toxic chemicals produces edible hips, but depending on what you want to do with your fruit, you might want to focus on larger hips. Other people have reported insomnia and unrestful sleep. I commonly eat them raw but making a hot or cold tea out of rose hips is a popular way to enjoy their unique flavor. Multiflora Rose hips are small but plentiful. Multiflora Rose berries, also known as rose hips. The golf-ball sized growths you see on roses are called moss galls. These fruits have a pleasantly sharp flavor and are strong sources of both essential fatty acids and vitamins. Effects. Rose hip is generally considered safe but may cause side effects in some people, including nausea, diarrhea, constipation, heartburn, stomach cramps, fatigue, and headache. This could increase how much lithium is in the body and result in serious side effects. I use smaller rose hips for jelly and syrup, since it can be tedious to cut and scoop the small fruits. Wear long pants to protect your legs from nettles, thorns, and even poison ivy or poison oak when foraging wild rosehips. The thorn on a rose stem provides an excellent device for injecting infectious material into your skin. The risk tends to increase with larger doses. Taking rose hip might decrease how well the body gets rid of lithium. 2 Grab them by the handful. To make the tea, mash the rose hips and steep them in hot water. 8. Rose hips of multiflora roses are edible for people as well as birds.