This paper investigates the placement of a set of French attributive adjectives within noun phrases, characterized by flexible pre-and postnominal positioning without altering interpretation. We examine the effect of the prosodic factor length (in number of syllables), predicting a preference for short-before-long ordering. In addition, we explore prosodic cues inside the noun phrases. Two studies were conducted: a forced-choice task using written material and an elicited production task employing spoken material. The material manipulates the relative length of adjectives and nouns (longer, equally long or shorter adjectives) and their position (prenominal or postnominal). In the elicited production task participants combined two sentences (eliciting adjectives and nouns separately) to create adjective-noun pairs without being primed for one order. Results suggest a preference for the short-before-long ordering in both perception and production. Additionally, the production data highlights that adjectives attain the highest F0 peak regardless of position, with different patterns for the F0 peaks of prenominal adjectives. These find-ings emphasize the impact of prosodic length on adjective placement in both perception and production and the alignment of F0 peaks within the noun phrases.