However, it does not grow as well in wet soils. Based on the distribution of multiflora rose, it appears that temperature is the main limiting factor. One study correlated poor plant vigor with two successive growing periods with high precipitation. The plants flower from May through June, with fruits developing in late summer. The fruits are enclosed in a fleshy hypanthium that provides food for numerous species of birds.
Germination is enhanced by passing through the digestive tract of birds.
Thus, birds serve as the primary dispersal mechanism for the seeds. Uneaten hips will eventually dry and split to release the seed. The seed has a long viability. Germination is also enhanced by stratification. Seedlings will begin to appear within 60 days if the soil surface remains warm.