I'm no expert, but from what I do know - both bloom at night. Datura flowers look more like trumpets and grow on shorter bushy stems. Moonflowers look like white morning glories and grow like crazy on very long vines. Datura, from the deadly nightshade family, contains toxic hallucinogens found in most parts of the plant. I've heard it called both Angel's Trumpet and Devil's Trumpet (??). If you want day and night blooms why not stick with Morning Glories and Moonflowers?
Michele, Thank you, I was not aware of the toxic found in Angel's Trumpet. I love the flower so I planted one in a boxed tree bed I have. I have a curious 2 yr old always picking flowers so I'm glad to know this.
They are all listed on the,"I wish I hadn't planted that", Group.
Here in NOR-CAL, if you plant Morning Glories, chances are you will have them forever.
Trumpet Vine is the same. Not sure if that is the same as what you are calling Angels Trumpet.
datura or Devil's Trumpet
Moonflowers grow in vines like morning glories. The seeds are about the same size as corn but are light brown and round. Morning glory seeds are a lot smaller.
Devil's trumpet makes seed pods that look like a ball with thorns. You'll get plenty of seeds from one pod. I havent seen a seed pod of angel trumpet but a friend told me it looks like a bean pod.
I'm not an expert but I hope this helped.
There is a lot of confusion with these plants.
Moon Flower/Datura and Brugmansia are not related. Their flowers look similar though. Both are poisonous.
There is a moon flower bush and a moon flower vine. Not the same plant at all.
Brugmansias want to be trees, in fact in their natural habitat (S America) they are huge trees!
Angel Trumpets (brugmansia) flowers point down Devil trumpets (datura) flowers point up.
Here in zone 7 N Texas they both die to the ground at first frost, but will return in the spring. Brugmansia must be cut back and mulched though.
Moon flower vine is an annual here just like morning glory. Its blooms open at night.
I do have a datura that has been crossed with a brugmansia. It looks like a datura but smells like a brugmansia and its blooms stay open all day and all night. The fragrance is strongest at night.
Brugmansia is a small tree or large perennial (in warm climates) shrub, known for its Trumpet shaped, large downward pointing blooms. It smells heavenly at dusk after a hot day. Wind will shred it, so plant it in a sheltered spot. It prefers shade in hottest gardens and is NOT a hardy plant after 30 degrees.
Moonflowers are in the ipomea family, and are an annual vine.
Dautra and brugmansia are not realted nor are they the same plant.
Rose, there is a moonflower vine and also a moonflower bush.
They are not the same plant, just the same common name. The bush is a datura.