https://www.smartseedstore.com/products/nyctanthes-arbor-tristis-indian-night-jasmine

That's wierd I got one from the same place and mine blooms in the spring and then again in the late fall when the nights cool off. It is about 6 feet now. I just potted up to about 3 gallon size this spring and its got roots growing into the ground lol. I have it under an eave where it can't get too much rain. I water it and try to let it dry out a little between waterings. It gets sun most of the day with some late afternoon shade and seems to like the heat. I give it bloom booster in the fall and spring when it flowers otherwise it just gets reg. miracle grow or whatever I'm feeding the rest of the plants. The flowers are easy to miss. When they flower you might not even notice unless you are looking for them. They fall off at daybreak as soon as the sun hits them unless its really cloudy and they open up after dark. Each flower only lasts a day unlike Night blooming jasmine (cestrum nocturnum) in which each flower can last several days (opening at night and closing during the day). The fragrance is similar for both plants but the Nyctanthes is not as strong as the Cestrum Nocturnum so unless you are close to the Nyctanthes when it is flowering you might not notice. ~Lenette

Thanks. I wonder how large the seeds will be? I will probaby plant them shallowly after I follow your method. I don't know how long they take to flower from seed. I have tried to root it before but not much luck. I am gonna try again in the spring. I got my plant from zone9tropicals. They send a pretty good sized plant for the price. They are out of stock right now but you can ask them when they would have them again. Several yrs ago I had one that I bought at Logees. They don't list it in the catalog any longer but I know that they may still be growing them and may sell them if you email them. That is how I got mine. They sell them in very small pots though.

Then, you'll have something that looks like this below. Then you hold that so the torn bit is at the top, and then - see how it's bent or ridged down the middle? - you want to bend the seedpod towards yourself gently - bending the sides in horizontally along that vertical axis, if that makes sense? - until you hear a crack. I am not explaining very well, but say that seed in prior photo is an open book, with the ridge as the spine. Well you are bending the way you would close a book. I'll bet there is a term for this and someone here will know it. The motion is a little like breaking off a Kitkat, only smaller and more gently. (I think this whole procedure would be tough if you don't have long fingernails. Just saying.) You just want it to crack - don't actually close the book.