Oenothera Species, Evening Primrose, Narrow-Leaf Evening Primrose, Shrubby Sundrops, Sundrops

I really like this plant!
It bloom beginning of June for 2 weeks. I have some plant in shade and some plant in a sun position. The...Read More shade limits the spreading behavior but also the abundance of the flowers. The groups of plants in a sunny position really make a bright yellow carpet when in bloom. The un-opened flower are red. Bee, especially the small metallic green bee (Halictidae) love them! Year after year I never saw so many bee concentrated to the same plant such as with sundrop. The bright yellow bloom open with the sun and close at the evening. It is one of my essential bee plant for the early-mid June period,

This Particular species (fruticosa subsp. glauca) produces Red Flower buds before opening Yellow, tinges of red on the stalks, and someti...Read Moremes mistaken for other sundrops. I have the other common ones and there is definitely a difference.

My Sundrops made the transition from Branson MO to northern MO 25 years ago known only as Missouri Primrose.
Survived 2 more moves...Read More. Planted in full sun it never spread much but I loved the stunning yellow blooms.
Last year I moved the plants to semi-shade location and they have multiplied into what will be a beautiful drift of color. Now 24" tall. Definitely one of my favorite summer flowers.
Thank you for identifying my Sundrops.

I got some from a friend who thought that they were buttercups. Just a few plants filled in under my mailbox very nicely within a couple...Read More years. That's a fairly shady spot (under the spreading branches of a big maple tree). They flower considerably, but all in one flush over a relatively short time. I've since gotten more from an aunt (who knew them as Evening Primrose) and planted them in a sunnier spot. I look forward to seeing the results in future years and hope that they'll bloom longer in the sun. I've got them with anise hyssop, which is blooming now for me, and I'm hoping that the yellow Evening Primrose and purple anise hyssop will complement each other well (my other planting of Evening Primrose in the shady spot under my mailbox was done blooming before the anise hyssop started). Not a flower to grow with short, delicate plants, but a great ground cover with dainty, pastel yellow flowers that have a soft, paper-thin, silky texture. Definitely never needs staking of any kind -- the stems are tough and almost woody. In winter, a small rosette at ground level persists, turning burgundy in my zone 6 climate.