When Do 4 Oclock Flowers Open. Apr 05 2021 Four oclock flowers on the other hand respond to temperature and they dont like the heat. Earning the name four oclock flower the fragrant flowers open in the late afternoon or early evening and also in overcast weather and exhale a scent reminiscent of the tobacco flower and attract moths for pollination.
Their tubular flowers are perfectly shaped for visiting hummingbirds. On cloudy days the flowers open earlier and sometimes wont close at all. You mention the foliage looks good if this is the result of lots of nitrogen fertilizer the plant may be directing energy into foliage instead of flowers.
Four OClocks are a bushy tender perennial that can be grown from either a tuber or seeds.
Four OClock flowers only open in the afternoon around 400. New flowers open the following afternoon. Pictures warning Taking a break from the garden overhauling I wanted to caution anyone who has an opportunity to plant 4 oclocks. Four OClocks Mirabilis jalapa Four oclocks do not open until late in the afternoon but they are worth waiting for.